Module Communications Network: Diagnosis — Ford Edge I рестайлинг (2010-2014)

Inspection and Verification

Verify the customer concern.
Visually inspect for obvious signs of electrical damage. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. VISUAL INSPECTION CHART Electrical Battery Junction Box (BJB) fuse(s): 5 (40A) (ABS module) 7 (30A) (Liftgate/Trunk Module (LTM)) 23 (30A) (Driver Seat Module (DSM)) 28 (30A) (HVAC module Electronic Manual Temperature Control (EMTC) or Dual Automatic Temperature Control (DATC)) 43 (30A) (ABS module) 56 (15A) (Transmission Control Module (TCM)) 79 (5A) (Cruise-Control Module (C-CM)) 86 (7.5A) (PCM) 89 (5A) (Headlamp Control Module (HCM)) 90 (10A) (PCM, TCM) 91 (10A) (C-CM) 92 (10A) (ABS module) Body Control Module (BCM) fuse(s): 6 (5A) (TPM module) 7 (7.5A) (DSM) 9 (10A) (LTM) 11 (10A) (Instrument Panel Cluster (IPC), Head Up Display (HUD) module) 18 (10A) (BCM) 19 (20A) (Audio Digital Signal Processing (DSP) module) 23 (15A) (FLM, Remote Function Actuator (RFA) module, SCCM) 24 (15A) (no power to DLC, Steering Column Control Module (SCCM)) 26 (5A) (Global Positioning System Module (GPSM)) 27 (20A) (RFA module) 29 (20A) (Accessory Protocol Interface Module (APIM), Audio Front Control Module (ACM), Front Controls Interface Module (FCIM), Front Control/Display Interface Module (FCDIM)) 34 (10A) (Parking Aid Module (PAM), Side Obstacle Detection Control Module - Left (SOD-L), Side Obstacle Detection Control Module - Right (SOD-R)) 35 (5A) (Head Up Display (HUD) module) 36 (10A) (Heated Steering Wheel Module (HSWM)) 41 (7.5A) (Occupant Classification System Module (OCSM), Restraints Control Module (RCM)) 46 (10A) (HVAC module EMTC or DATC) Data Link Connector (DLC) Wiring, terminals or connectors
Connect the scan tool to the DLC. NOTE: Make sure to use the latest scan tool software release. NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM. If the Integrated Diagnostic System (IDS) does not communicate with the VCM: Check the VCM connection to the vehicle. Check the scan tool connection to the VCM. GO to «Pinpoint Test AE»(ref-494551-S03711996662012081400000) , to diagnose No Power To The Scan Tool.
Establish a scan tool session. NOTE: The scan tool first attempts to communicate with the PCM. After establishing communication with the PCM, the scan tool then attempts to communicate with all other modules on the vehicle. If an IDS session cannot be established with the vehicle, (IDS may state "No communication can be established with the PCM"): Choose "NO" when the scan tool prompts whether or not to retry communication. Enter either a PCM part number, tear tag or calibration number to identify the vehicle and start a session. The PCM part number and 4- character tear tag are printed on the PCM label. If the PCM part number cannot be found, a base part number search on the HVBOM application (under the OASIS tab on the technician service publication website) retrieves the PCM part number. GO to «Pinpoint Test A»(ref-494551-S12747956192012081400000) , to diagnose The PCM Does Not Respond To The Scan Tool.
Carry out the network test. If the network test passes, retrieve and record the continuous memory DTCs and proceed to Step 6. If the network test fails, GO to «Symptom Chart»(ref-494551-S32443397342012081400000) to diagnose the failed communication network. If a module fails to communicate during the network test, GO to «Symptom Chart»(ref-494551-S32443397342012081400000) .
Retrieve and review the DTCs. If the DTCs retrieved are related to the concern, go to «DTC Charts»(ref-494551-S12950760272012081400000) . Follow the non-network DTC diagnostics (B-codes, C-codes, P-codes) prior to the network DTC diagnostics (U-codes). If no DTCs related to the concern are retrieved, GO to «Symptom Chart»(ref-494551-S32443397342012081400000) .

DTC Charts

Note. Network DTCs (U-codes) are often a result of intermittent concerns such as damaged wiring or low battery voltage occurrences. Additionally, vehicle repair procedures such as module reprogramming often set network DTCs. Replacing a module to resolve a network DTC is unlikely to resolve the concern. To prevent repeat network DTC concerns, inspect all network wiring, especially connectors. Test the vehicle battery, refer to BATTERY, MOUNTING AND CABLES .

Note. Some modules on this vehicle utilize a 5-character DTC followed by a 2-character failure type code. The failure type code provides information about specific fault conditions such as opens or shorts to ground. Continuous Memory DTCs have an additional 2-character DTC status code suffix to assist in determining DTC history.

DTC	Description	Source	Action
U0001: 88	High Speed Controller Area Network (HS-CAN) Communication Bus; Bus Off	ABS module C-CM	The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring, Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0028: 08	Vehicle Communication Bus A: Bus Signal/Message Failures	RCM	The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0028: 88	Vehicle Communication Bus A: Bus Off	RCM	The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0073	Control Module Communication Bus A Off	HCM	The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U0073: 00	Control Module Communication Bus A Off	TCM	The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.
U3000: 88	Control Module: Bus Off	APIM	The module could not communicate on the network at a point in time. The fault is not currently present (the module had to communicate with the scan tool to report this DTC). CLEAR the DTC. REPEAT the Network Test with the scan tool. VERIFY the integrity of the connectors and wiring Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

COMMUNICATION NETWORK DTC CHART

Symptom Chart

Condition	Possible Sources	Action
The vehicle does not start with the scan tool connected to the Data Link Connector (DLC) and/or multiple malfunction indicators are only on when the scan tool is connected to the DLC.	Wiring, terminals or connectors Scan tool	GO to Pinpoint Test AF .
The PCM does not respond to the scan tool	Wiring, terminals or connectors PCM	REFER to INTRODUCTION article, pinpoint test QA before proceeding to Pinpoint Test A. If pinpoint test QA has been completed, GO to Pinpoint Test A .
The ABS module does not respond to the scan tool	Fuse Wiring, terminals or connectors ABS module	GO to Pinpoint Test B .
The Restraints Control Module (RCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors Case ground open RCM	GO to Pinpoint Test C .
The Front Control/Display Interface Module (FCDIM) does not respond to the scan tool	Fuse Wiring, terminals or connectors FCDIM	GO to Pinpoint Test D .
The Occupant Classification System Module (OCSM) does not respond to the scan tool	Fuse Wiring, terminals or connectors OCSM	GO to Pinpoint Test E .
The Headlamp Control Module (HCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors LH headlamp assembly (The HCM is serviced with the LH headlamp assembly)	GO to Pinpoint Test F .
The Steering Column Control Module (SCCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors SCCM	GO to Pinpoint Test G .
The Instrument Panel Cluster (IPC) does not respond to the scan tool	Fuse Wiring, terminals or connectors IPC	GO to Pinpoint Test H .
The Body Control Module (BCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors BCM	GO to Pinpoint Test I .
The HVAC module does not respond to the scan tool	Fuse Wiring, terminals or connectors HVAC module - EMTC HVAC module - DATC	GO to Pinpoint Test J .
The Audio Front Control Module (ACM) does not respond to the scan tool	Fuse Wiring, terminals or connectors ACM	GO to Pinpoint Test K .
The audio Digital Signal Processing (DSP) module does not respond to the scan tool	Fuse Wiring, terminals or connectors Audio DSP module	GO to Pinpoint Test L .
The Front Lighting Control Module (FLM) does not respond to the scan tool	Fuse Wiring, terminals or connectors FLM	GO to Pinpoint Test M .
The Liftgate/Trunk Module (LTM) does not respond to the scan tool	Fuse Wiring, terminals or connectors LTM	GO to Pinpoint Test N .
The Driver Seat Module (DSM) does not respond to the scan tool	Fuse Wiring, terminals or connectors DSM	GO to Pinpoint Test O .
The Global Positioning System Module (GPSM) does not respond to the scan tool	Fuse Wiring, terminals or connectors GPSM	GO to Pinpoint Test P .
The Dual Climate Controlled Seat Module (DCSM) does not respond to the scan tool	Fuse Wiring, terminals or connectors DCSM	GO to Pinpoint Test Q .
The Parking Aid Module (PAM) does not respond to the scan tool	Fuse Wiring, terminals or connectors PAM	GO to Pinpoint Test R .
The Accessory Protocol Interface Module (APIM) does not respond to the scan tool	Fuse Wiring, terminals or connectors APIM	GO to Pinpoint Test S .
The Head Up Display (HUD) module does not respond to the scan tool	Fuse Wiring, terminals or connectors HUD module	GO to Pinpoint Test T .
The Cruise-Control Module (C-CM) does not respond to the scan tool	Fuse Wiring, terminals or connectors C-CM	GO to Pinpoint Test U .
The Side Obstacle Detection Control Module - Left (SOD-L) does not respond to the scan tool	Fuse Wiring, terminals or connectors SOD-L	GO to Pinpoint Test V .
The Side Obstacle Detection Control Module - Right (SOD-R) does not respond to the scan tool	Fuse Wiring, terminals or connectors SOD-R	GO to Pinpoint Test W .
The Tire Pressure Monitor (TPM) module does not respond to the scan tool	Fuse Wiring, terminals or connectors TPM module	GO to Pinpoint Test X .
The Front Controls Interface Module (FCIM) does not respond to the scan tool	Fuse Wiring, terminals or connectors FCIM	GO to Pinpoint Test Y .
The Remote Function Actuator (RFA) module does not respond to the scan tool	Fuse Wiring, terminals or connectors RFA module	GO to Pinpoint Test Z .
Heated Steering Wheel Module (HSWM) does not respond to the scan tool	Fuse Wiring, terminals or connectors HSWM	GO to Pinpoint Test AA .
Transmission Control Module (TCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors TCM	GO to Pinpoint Test AB .
No Medium Speed Controller Area Network (MS-CAN) communication, all modules are not responding	Wiring, terminals or connectors DLC APIM (if equipped) BCM DCSM (if equipped) DSM (if equipped) GPSM (if equipped) HVAC module HSWM (if equipped) LTM (if equipped) RFA module (if equipped) SOD-L (if equipped) SOD-R (if equipped) TPM module	GO to Pinpoint Test AC .
No High Speed Controller Area Network (HS-CAN) communication, all modules are not responding	Wiring, terminals or connectors DLC APIM (if equipped) ABS module BCM C-CM (if equipped) FLM HCM (if equipped) HUD module (if equipped) IPC OCSM PAM (if equipped) PCM RCM SCCM TCM (if equipped)	GO to Pinpoint Test AD .
No Infotainment Controller Area Network (I-CAN) communication, all modules are not responding	Wiring, terminals or connectors DLC APIM (if equipped) ACM Audio DSP module (if equipped) FCDIM (if equipped) FCIM IPC	If the IPC does not pass a network test, DIAGNOSIS the IPC first. GO to Pinpoint Test H . If the IPC passes a network test, GO to Pinpoint Test AE .
No power at the Data Link Connector (DLC)	Fuse Wiring, terminals or connectors DLC Scan tool	GO to Pinpoint Test AF .

SYMPTOM CHART

Pinpoint Test A: The PCM Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - ELECTRONIC ENGINE CONTROLS - 2.0L GTDI for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - ELECTRONIC ENGINE CONTROLS - 3.5L & 3.7L TIVCT for schematic and connector information.

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 2

Scheme 2: PINPOINT TEST A: THE PCM DOES NOT RESPOND TO THE SCAN TOOL

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Scheme 6

A1 VERIFY WHETHER OTHER HS-CAN MODULES PASS THE NETWORK TEST Enter the following diagnostic mode on the scan tool: Network Test. In the left hand pane of the IDS network test display screen, verify whether any HS-CAN modules passed the network test. Is the text "pass" or a DTC listed next to any of the following modules (if equipped): ABS module, Accessory Protocol Interface Module (APIM), Body Control Module (BCM), Cruise-Control Module (C-CM), Front Lighting Control Module (FLM), Headlamp Control Module (HCM), Head Up Display (HUD) module, Instrument Panel Cluster (IPC), Occupant Classification System Module (OCSM), Parking Aid Module (PAM), PCM, Restraints Control Module (RCM), Steering Column Control Module (SCCM) or Transmission Control Module (TCM)? YES : If "pass" or a DTC was listed next to the PCM, a network fault is not currently present. GO to «Pinpoint Test AD»(ref-494551-S03833851872012081400000) to diagnose an intermittent HS-CAN fault condition. If "pass" or a DTC was listed next to one or more modules other than the PCM, GO to A2 . No : No modules are currently communicating on the HSCAN. GO to «Pinpoint Test AE»(ref-494551-S03711996662012081400000) to diagnose no HS-CAN communication.
A2 PC/ED MANUAL PINPOINT TEST QA VERIFICATION CHECK Verify that pinpoint test QA has been carried out. Has pinpoint test QA been carried out? YES : GO to A3 . No : REFER to «INTRODUCTION»(ref-494549) article, pinpoint test QA to diagnose no communication with the PCM.
A3 CHECK THE HS-CAN TERMINATION RESISTANCE Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the Data Link Connector (DLC) C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance between 54 and 66 ohms? YES : CONNECT the negative battery cable. GO to A5 . No : GO to A4 .
A4 CHECK THE HS-CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN Disconnect: PCM C175B (3.5L/3.7L engines) or C1381B (2.0L engine). For vehicles with the 3.5L/3.7L engine, measure the resistance between the PCM C175B-59, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. For vehicles with the 3.5L/3.7L engine, measure the resistance between the PCM C175B-58, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. For vehicles with the 2.0L engine, measure the resistance between the PCM C1381B-54, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. For vehicles with the 2.0L engine, measure the resistance between the PCM C1381B-41, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to A5 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
A5 CHECK FOR CORRECT PCM OPERATION Disconnect all the PCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the PCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new PCM. Refer to «ELECTRONIC ENGINE CONTROLS»(ref-494600) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test B: The ABS Module Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEMS for schematic and connector information.

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 7

Scheme 7: PINPOINT TEST B: THE ABS MODULE DOES NOT RESPOND TO THE SCAN TOOL

Scheme 8

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Scheme 10

B1 CHECK THE ABS MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: ABS Module C135. Ignition ON. Measure the voltage between the ABS module C135-1, circuit SBB05 (GY/RD), C135-8, circuit CBB92 (GN/WH) and C135-32, circuit SBB43 (BU/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to B2 . No : VERIFY the Battery Junction Box (BJB) fuses 92 (10A), 43 (30A), and 5 (40A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
B2 CHECK THE ABS MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the ABS module C135-16, circuit GD121 (BK/YE), harness side and ground. Is the resistance less than 5 ohms? YES : GO to B3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
B3 CHECK THE HS-CAN CIRCUITS BETWEEN THE ABS MODULE AND THE DLC FOR AN OPEN Measure the resistance between the ABS module C135-12, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the ABS module C135-13, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to B4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
B4 CHECK FOR CORRECT ABS MODULE OPERATION Disconnect the ABS module connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the ABS module connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new ABS module. REFER to «ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL»(ref-494595) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test C: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - SUPPLEMENTAL RESTRAINTS for schematic and connector information.

PINPOINT TEST C: THE RCM DOES NOT RESPOND TO THE SCAN TOOL

WARNING

Never disassemble or tamper with seat belt deployable components, including pretensioners, load limiters and inflators. Never back probe deployable device electrical connectors. Tampering or back probing may cause an accidental deployment and result in personal injury or death.

WARNING

Never probe the electrical connectors on air bag, Safety Canopy® or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

Note. The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

Note. Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 11

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Scheme 13

C1 CHECK THE RCM CONNECTION Ignition OFF. Depower the SRS. Refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . Disconnect: RCM C310A. Disconnect: RCM C310B. Are RCM C310A pin 13 and RCM C310B pins 9 and 10 OK? YES : GO to C2 . No : REPAIR the RCM connector pins as necessary. REPOWER the SRS. Refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. REPEAT the network test with the scan tool.
C2 CHECK THE RCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Deactivate the SRS. Refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . Repower the SRS. Refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . Ignition ON. Measure the voltage between the RCM C310A-13, circuit CBP41 (BU), harness side and ground. Is the voltage greater than 10 volts? YES : GO to C3 . No : VERIFY the Body Control Module (BCM) fuse 41 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. REACTIVATE the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. REPEAT the network test with the scan tool.
C3 CHECK THE RCM CASE GROUND Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the RCM case and a good chassis ground. Is the resistance less than 5 ohms? YES : GO to C4 . No : REPAIR the RCM case ground as necessary. CONNECT the negative battery cable. REACTIVATE the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. REPEAT the network test with the scan tool.
C4 CHECK THE HS-CAN CIRCUITS BETWEEN THE RCM AND THE DLC FOR AN OPEN Measure the resistance between the RCM C310B-10, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the RCM C310B-9, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to C5 . No : REPAIR the circuit in question. CONNECT the negative battery cable. REACTIVATE the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. REPEAT the network test with the scan tool.
C5 CHECK FOR CORRECT RCM OPERATION Disconnect all the RCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the RCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new RCM. REACTIVATE the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. REACTIVATE the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test D: The Front Control/Display Interface Module (FCDIM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - AUDIO SYSTEM & NAVIGATION for schematic and connector information.

PINPOINT TEST D: THE FCDIM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 14

Scheme 14: PINPOINT TEST D: THE FCDIM DOES NOT RESPOND TO THE SCAN TOOL

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D1 CHECK THE FCDIM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: FCDIM C2123. Ignition ON. Measure the voltage between the FCDIM C2123-1, circuit SBP29 (GY/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to D2 . No : VERIFY the Body Control Module (BCM) fuse 29 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
D2 CHECK THE FCDIM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the FCDIM C2123-9, circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to D3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
D3 CHECK THE I-CAN CIRCUITS BETWEEN THE FCDIM AND THE IPC FOR AN OPEN Disconnect: IPC C220. Measure the resistance between the FCDIM C2123-4, circuit VDB13 (BU/GY), harness side and the IPC C220-25, circuit VDB13 (BU/GY), harness side. Measure the resistance between the FCDIM C2123-5, circuit VDB14 (VT/GY), harness side and the IPC C220-26, circuit VDB14 (VT/GY), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to D4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
D4 CHECK FOR CORRECT FCDIM OPERATION Disconnect the FCDIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the FCDIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new FCDIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. REPEAT the network test with the scan tool. TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test E: The Occupant Classification System Module (OCSM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - SUPPLEMENTAL RESTRAINTS for schematic and connector information.

PINPOINT TEST E: THE OCSM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

Note. Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 18

Scheme 18: PINPOINT TEST E: THE OCSM DOES NOT RESPOND TO THE SCAN TOOL

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Scheme 21

E1 CHECK THE OCSM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Wait one minute. Disconnect: OCSM C3159. Ignition ON. Measure the voltage between the OCSM C3159-1, circuit CBP41 (BU), harness side and ground. Is the voltage greater than 10 volts? YES : GO to E2 . No : VERIFY the Body Control Module (BCM) fuse 41 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
E2 CHECK THE OCSM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the OCSM C3159-14, circuit GD143 (BK/VT), harness side and ground. Is the resistance less than 5 ohms? YES : GO to E3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
E3 CHECK THE HS-CAN CIRCUITS BETWEEN THE OCSM AND THE DATA LINK CONNECTOR (DLC) FOR AN OPEN Measure the resistance between the OCSM C3159-18, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the OCSM C3159-9, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to E4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
E4 CHECK FOR CORRECT OCSM OPERATION Disconnect the OCSM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the OCSM connector and make sure it seats correctly. Verify the concern is still present. Is the concern still present? YES : INSTALL a new OCSM. CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test F: The Headlamp Control Module (HCM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - HEADLIGHTS & AUTOLIGHTS for schematic and connector information.

PINPOINT TEST F: THE HCM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 22

Scheme 22: PINPOINT TEST F: THE HCM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 23

Scheme 24

Scheme 25

F1 CHECK THE HCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN NOTE: Perform HCM testing at the LH headlamp connector. Ignition OFF. Disconnect: LH Headlamp C1021B. Ignition ON. Measure the voltage between the LH headlamp C1021B-3, circuit CBB89 (VT/GY), harness side and ground. Is the voltage greater than 10 volts? YES : GO to F2 . No : VERIFY the Battery Junction Box (BJB) fuse 89 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
F2 CHECK THE HCM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the LH headlamp C1021B-9, circuit GD120 (BK/GN), harness side and ground. Is the resistance less than 5 ohms? YES : GO to F3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
F3 CHECK THE HS-CAN CIRCUITS BETWEEN THE HCM AND THE DLC FOR AN OPEN Measure the resistance between the LH headlamp C1021B-6, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the LH headlamp C1021B-12, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to F4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
F4 CHECK FOR CORRECT HCM OPERATION Disconnect the LH headlamp connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the LH headlamp connector and make sure it seats correctly. Verify the concern is still present. Is the concern still present? YES : INSTALL a new HCM that is integral to the LH headlamp assembly. REFER to «EXTERIOR LIGHTING»(ref-494583) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test G: The Steering Column Control Module (SCCM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - TURN SIGNAL, STOP LIGHTS & HAZARD LIGHTS for schematic and connector information.

PINPOINT TEST G: THE SCCM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 26

Scheme 26: PINPOINT TEST G: THE SCCM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 27

Scheme 28

Scheme 29

Scheme 30

Scheme 31

G1 CHECK THE SCCM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: SCCM C2414A. Disconnect: SCCM C2414B. Ignition ON. Measure the voltage between the SCCM C2414A-10, circuit SBP23 (WH/RD), harness side and ground. Measure the voltage and between the SCCM C2414B-8, circuit SBP24 (VT/RD), harness side and ground. Are the voltages greater than 10 volts? YES : GO to G2 . No : VERIFY the Body Control Module (BCM) fuses 23 (15A) and 24 (15A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
G2 CHECK THE SCCM GROUND CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the SCCM C2414A-13, circuit GD115 (BK/GY), harness side and ground. Measure the resistance between the SCCM 2414B-5, circuit GD115 (BK/GY), harness side and ground. Are the resistances less than 5 ohms? YES : GO to G3 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
G3 CHECK THE HS-CAN CIRCUITS BETWEEN THE SCCM AND THE DLC FOR AN OPEN Measure the resistance between the SCCM C2414A-14, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the SCCM C2414A-15, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to G4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
G4 CHECK FOR CORRECT SCCM OPERATION Disconnect all the SCCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the SCCM connectors and make sure they seat correctly. Verify the concern is still present. Is the concern still present? YES : INSTALL a new SCCM. REFER to «STEERING COLUMN SWITCHES»(ref-494582) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test H: The Instrument Panel Cluster (IPC) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - INSTRUMENT CLUSTER for schematic and connector information.

PINPOINT TEST H: THE IPC DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 32

Scheme 32: PINPOINT TEST H: THE IPC DOES NOT RESPOND TO THE SCAN TOOL

Scheme 33

Scheme 34

Scheme 35

Scheme 36

Scheme 37

H1 CHECK THE IPC VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Disconnect: IPC C220. Ignition ON. Measure the voltage between the IPC C220-21, circuit SBP11 (BU/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to H2 . No : VERIFY the BCM fuse 11 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool
H2 CHECK THE IPC GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the IPC C220-5, circuit GD115 (BK/GY), harness side and ground. Are the resistances less than 5 ohms? YES : GO to H3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
H3 CHECK THE HS-CAN CIRCUITS BETWEEN THE IPC AND THE DLC FOR AN OPEN Measure the resistance between the IPC C220-12, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the IPC C220-13, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : GO to H4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
H4 CHECK THE I-CAN CIRCUITS BETWEEN THE IPC AND THE DLC FOR AN OPEN Measure the resistance between the IPC C220-25, circuit VDB13 (BU/GY), harness side and the DLC C251-1, circuit VDB13 (BU/GY), harness side. Measure the resistance between the IPC C220-26, circuit VDB14 (VT/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Are the resistances less than 5 ohms? YES : GO to H5 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
H5 CHECK FOR CORRECT IPC OPERATION Disconnect the IPC connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the IPC connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new IPC. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-494581) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test I: The Body Control Module (BCM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - FUSE AND RELAY INFORMATION for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - POWER DISTRIBUTION & BCM for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

PINPOINT TEST I: THE BCM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 38

Scheme 39

Scheme 40

Scheme 41

Scheme 42

I1 CHECK THE HS-CAN TERMINATION RESISTANCE Ignition OFF. Disconnect: Negative Battery Cable. Disconnect the scan tool cable from the Data Link Connector (DLC). Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance between 54 and 66 ohms? YES : Visually inspect BCM fuse 18 (10A). If OK, GO to I2 . If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool. CONNECT the negative battery cable. No : GO to I3 .
I2 CHECK THE BCM GROUND CIRCUIT FOR AN OPEN Disconnect: BCM C2280D. Measure the resistance between the BCM C2280D-25, circuit GD133 (BK) harness side and ground. Is the resistance less than 5 ohms? YES : GO to I3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
I3 CHECK THE HS-CAN CIRCUITS BETWEEN THE BCM AND THE DLC FOR AN OPEN Disconnect: BCM C2280F. Measure the resistance between the BCM C2280F-16, circuit VDB04 (WH/BU), harness side and the Data Link Connector (DLC) C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the BCM C2280F-17, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : GO to I4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
I4 CHECK THE MS-CAN CIRCUITS BETWEEN THE BCM AND THE DLC FOR AN OPEN Measure the resistance between the BCM C2280B-38, circuit VDB06 (GY/OG), harness side and the Data Link Connector (DLC) C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the BCM C2280B-39, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to I5 . No : REPAIR the circuit in question in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
I5 CHECK FOR CORRECT BCM OPERATION Disconnect all the BCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the BCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new BCM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-494579) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

Pinpoint Test J: The HVAC Module Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - AIR CONDITIONING - MANUAL CLIMATE CONTROL SYSTEM for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - AIR CONDITIONING - AUTOMATIC CLIMATE CONTROL SYSTEM for schematic and connector information.

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 43

Scheme 43: PINPOINT TEST J: THE HVAC MODULE DOES NOT RESPOND TO THE SCAN TOOL

Scheme 44

Scheme 45

Scheme 46

J1 CHECK THE HVAC MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: HVAC Module C2357 (EMTC) or C228A (Dual Automatic Temperature Control (DATC)). Ignition ON. Measure the voltage between the HVAC module C2357-26 (EMTC) C228A-26 (DATC), circuit SBP46 (BN/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to J2 . No : VERIFY the BCM fuse 46 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
J2 CHECK THE HVAC MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the HVAC module C2357-10 (EMTC) C228A-10 (DATC), circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to J3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
J3 CHECK THE MS-CAN CIRCUITS BETWEEN THE HVAC MODULE AND THE DLC FOR AN OPEN Measure the resistance between the HVAC module C2357-12 (EMTC) C228A-12 (DATC), circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the HVAC module C2357-13 (EMTC) C228A-13 (DATC), circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to J4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
J4 CHECK FOR CORRECT HVAC MODULE OPERATION Disconnect all the HVAC module connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the HVAC module connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new HVAC module. REFER to «CLIMATE CONTROL»(ref-494627) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test K: The Audio Front Control Module (ACM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - AUDIO SYSTEM & NAVIGATION for schematic and connector information.

PINPOINT TEST K: THE ACM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 47

Scheme 47: PINPOINT TEST K: THE ACM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 48

Scheme 49

Scheme 50

K1 CHECK THE ACM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: ACM C240A. Ignition ON. Measure the voltage between the ACM C240A-1, circuit SBP29 (GY/RD), harness side and ground. Are the voltages greater than 10 volts? YES : GO to K2 . No : VERIFY the Body Control Module (BCM) fuse 29 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
K2 CHECK THE ACM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the ACM C240A-13, circuit GD114 (BK/BU), harness side and ground. Is the resistance less than 5 ohms? YES : GO to K3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
K3 CHECK THE I-CAN CIRCUITS BETWEEN THE ACM AND THE IPC FOR AN OPEN Disconnect: IPC C220. Measure the resistance between the ACM C240A-14, circuit VDB13 (BU/GY), harness side and the IPC C220-25, circuit VDB13 (BU/GY), harness side. Measure the resistance between the ACM C240A-15, circuit VDB14 (VT/GY), harness side and the IPC C220-26, circuit VDB14 (VT/GY), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to K4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
K4 CHECK FOR CORRECT ACM OPERATION Disconnect all the ACM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the ACM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new ACM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. REPEAT the network test with the scan tool. TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test L: The Audio Digital Signal Processing (DSP) Module Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - AUDIO SYSTEM & NAVIGATION for schematic and connector information.

PINPOINT TEST L: THE AUDIO DSP MODULE DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 51

Scheme 51: PINPOINT TEST L: THE AUDIO DSP MODULE DOES NOT RESPOND TO THE SCAN TOOL

Scheme 52

Scheme 53

Scheme 54

Scheme 55

Scheme 56

Scheme 57

Scheme 58

L1 CHECK THE AUDIO DSP MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: Audio DSP Module C4348C (THX® System) or C4326C (Sony® System). Ignition ON. For THX® system, measure the voltage between the audio DSP module C4348C-11, circuit SBP19 (BU/RD), harness side and ground; and between the audio DSP module C4348C-12, circuit SBP19 (BU/RD), harness side and ground. For Sony® system, measure the voltage between the audio DSP module C4326C-7, circuit SBP19 (BU/RD), harness side and ground; and between the audio DSP module C4326C-8, circuit SBP19 (BU/RD), harness side and ground. Are the voltages greater than 10 volts? YES : GO to L2 . No : VERIFY the BCM fuse 19 (20A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
L2 CHECK THE AUDIO DSP MODULE GROUND CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. For the THX® system, measure the resistance between the audio DSP module C4348C-21, circuit GD148 (BK/YE), harness side and ground; and between the audio DSP module C4348C-22, circuit GD148 (BK/YE), harness side and ground. For the Sony® system measure, the resistance between the audio DSP module C4326C-13, circuit GD148 (BK/YE), harness side and ground; and between the audio DSP module C4326C-14, circuit GD148 (BK/YE), harness side and ground. Are the resistances less than 5 ohms? YES : GO to L3 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
L3 CHECK THE I-CAN CIRCUITS BETWEEN THE AUDIO DSP MODULE AND THE IPC FOR AN OPEN Disconnect: IPC C220. Disconnect: Audio DSP Module C4348A (THX® System) C4326A (Sony® System). For the THX® system, measure the resistance between the audio DSP module C4348A-11, circuit VDB13 (BU/GY), harness side and the IPC C220-25, circuit VDB13 (BU/GY), harness side. For the THX® system, measure the resistance between the audio DSP module C4348A-1, circuit VDB14 (VT/GY), harness side and the IPC C220-26, circuit VDB14 (VT/GY), harness side. For the Sony® system, measure the resistance between the audio DSP module C4346A-1, circuit VDB13 (BU/GY), harness side and the IPC C220-25, circuit VDB13 (BU/GY), harness side. For the Sony® system, measure the resistance between the audio DSP module C4346A-11, circuit VDB14 (VT/GY), harness side and the IPC C220-26, circuit VDB14 (VT/GY), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to L4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
L4 CHECK FOR CORRECT AUDIO DSP MODULE OPERATION Disconnect all the audio DSP module connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the audio DSP module connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new audio DSP module. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test M: The Front Lighting Control Module (FLM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - HEADLIGHTS & AUTOLIGHTS for schematic and connector information.

PINPOINT TEST M: THE FLM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 59

Scheme 59: PINPOINT TEST M: THE FLM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 60

Scheme 61

Scheme 62

M1 CHECK THE FLM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: FLM C205. Ignition ON. Measure the voltage between the FLM C205-1, circuit SBP23 (WH/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to M2 . No : VERIFY the Body Control Module (BCM) fuse 23 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. TEST the system for normal operation.
M2 CHECK THE PAM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the FLM C205-7, circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to M3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. TEST the system for normal operation.
M3 CHECK THE HS-CAN CIRCUITS BETWEEN THE FLM AND THE DLC FOR AN OPEN Measure the resistance between the FLM C205-2, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the FLM C205-3, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to M4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
M4 CHECK FOR CORRECT FLM OPERATION Disconnect the FLM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the FLM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new FLM. REFER to «EXTERIOR LIGHTING»(ref-494583) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test N: The Liftgate/Trunk Module (LTM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - POWER LIFTGATE for schematic and connector information.

PINPOINT TEST N: THE LTM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 63

Scheme 63: PINPOINT TEST N: THE LTM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 64

Scheme 65

Scheme 66

N1 CHECK THE LTM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: LTM C4174A. Ignition ON. Measure the voltage between the LTM C4174A-4, circuit SBB07 (WH/RD), harness side and ground; and between the LTM C4174A-9, circuit SBP09 (RD), harness side and ground. Are the voltages greater than 10 volts? YES : GO to N2 . No : VERIFY the Battery Junction Box (BJB) fuse 7 (30A) and the BCM fuse 9 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
N2 CHECK THE LTM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the LTM C4174A-1, circuit GD149 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to N3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
N3 CHECK THE MS-CAN CIRCUITS BETWEEN THE LTM AND THE DLC FOR AN OPEN Disconnect: LTM C4174B. Measure the resistance between the LTM C4174B-24, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the LTM C4174B-23, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to N4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
N4 CHECK FOR CORRECT LTM OPERATION Disconnect all the LTM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the LTM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new LTM. REFER to «BODY CLOSURES»(ref-494637) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test O: The Driver Seat Module (DSM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - MEMORY SEATS for schematic and connector information.

PINPOINT TEST O: THE DSM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 67

Scheme 67: PINPOINT TEST O: THE DSM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 68

Scheme 69

Scheme 70

Scheme 71

Scheme 72

O1 CHECK THE DSM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: DSM C3299A. Disconnect: DSM C3299B. Measure the voltage between the DSM C3299A-1, circuit SBB23 (WH/RD), harness side and ground. Measure the voltage between the DSM C3299B-1, circuit SBP07 (WH/RD), harness side and ground. Are the voltages greater than 10 volts? YES : GO to O2 . No : VERIFY the Battery Junction Box (BJB) fuse 23 (30A) and the Body Control Module (BCM) fuse 7 (7.5) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
O2 CHECK THE DSM GROUND CIRCUIT FOR AN OPEN Disconnect: Negative Battery Cable. Measure the resistance between the DSM C3299A-2, circuit GD145 (BK/BU), harness side and ground. Measure the resistance between the DSM C3299B-24, circuit GD133 (BK), harness side and ground. Are the resistances less than 5 ohms? YES : GO to O3 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
O3 CHECK THE MS-CAN CIRCUITS BETWEEN THE DSM AND THE DLC FOR AN OPEN Disconnect: DSM C3299D. Measure the resistance between the DSM C3299D-10, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the DSM C3299D-9, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to O4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
O4 CHECK FOR CORRECT DSM OPERATION Disconnect all the DSM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the DSM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new DSM. REFER to «SEATING»(ref-494596) . REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test P: The Global Positioning System Module (GPSM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - AUDIO SYSTEM & NAVIGATION for schematic and connector information.

PINPOINT TEST P: THE GPSM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 73

Scheme 73: PINPOINT TEST P: THE GPSM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 74

Scheme 75

Scheme 76

P1 CHECK THE GPSM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: GPSM C2398. Ignition ON. Measure the voltage between the GPSM C2398-1, circuit SBP26 (YE/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to P2 . No : VERIFY the Body Control Module (BCM) fuse 26 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
P2 CHECK THE GPSM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the GPSM C2398-6, circuit GD114 (BK/BU), harness side and ground. Is the resistance less than 5 ohms? YES : GO to P3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
P3 CHECK THE MS-CAN CIRCUITS BETWEEN THE GPSM AND THE DLC FOR AN OPEN Measure the resistance between the GPSM C2398-2, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the GPSM C2398-3, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to P4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
P4 CHECK FOR CORRECT GPSM OPERATION Disconnect the GPSM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the GPSM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new GPSM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test Q: The Dual Climate Controlled Seat Module (DCSM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - HEATED SEATS - CLIMATE CONTROLLED SEATS for schematic and connector information.

PINPOINT TEST Q: THE DCSM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 77

Scheme 77: PINPOINT TEST Q: THE DCSM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 78

Scheme 79

Scheme 80

Q1 CHECK THE DCSM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: DCSM C3036A. Ignition ON. Measure the voltage between the DCSM C3036A-E, circuit SBB28 (GN/RD), harness side and ground; and between the DCSM C3036AF, circuit SBB28 (GN/RD), harness side and ground. Are the voltages greater than 10 volts? YES : GO to Q2 . No : VERIFY the Battery Junction Box (BJB) fuse 28 (30A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
Q2 CHECK THE DCSM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the DCSM C3036A-M, circuit GD145 (BK/BU), harness side and ground. Is the resistance less than 5 ohms? YES : GO to Q3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
Q3 CHECK THE MS-CAN CIRCUITS BETWEEN THE DCSM AND THE DLC FOR AN OPEN Disconnect: DCSM C3036C. Measure the resistance between the DCSM C3036C-1, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the DCSM C3036C-2, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to Q4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
Q4 CHECK FOR CORRECT DCSM OPERATION Disconnect all the DCSM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the DCSM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new DCSM. REFER to «SEATING»(ref-494596) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test R: The Parking Aid Module (PAM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - PARKING AID for schematic and connector information.

PINPOINT TEST R: THE PAM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 81

Scheme 81: PINPOINT TEST R: THE PAM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 82

Scheme 83

Scheme 84

R1 CHECK THE PAM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: PAM C4014. Ignition ON. Measure the voltage between the PAM C4014-1, circuit CBP34 (VT/BN), harness side and ground. Is the voltage greater than 10 volts? YES : GO to R2 . No : VERIFY the Body Control Module (BCM) fuse 34 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. TEST the system for normal operation.
R2 CHECK THE PAM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the PAM C4014-4, circuit GD133 (BK), harness side and ground. Is the resistance less than 5 ohms? YES : GO to R3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. TEST the system for normal operation.
R3 CHECK THE HS-CAN CIRCUITS BETWEEN THE PAM AND THE DLC FOR AN OPEN Measure the resistance between the PAM C4014-3, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the PAM C4014-11, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to R4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
R4 CHECK FOR CORRECT PAM OPERATION Disconnect the PAM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the PAM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new PAM. REFER to «PARKING AID»(ref-494633) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test S: The Accessory Protocol Interface Module (APIM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - AUDIO SYSTEM & NAVIGATION for schematic and connector information.

PINPOINT TEST S: THE APIM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 85

Scheme 85: PINPOINT TEST S: THE APIM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 86

Scheme 87

Scheme 88

Scheme 89

Scheme 90

S1 CHECK THE APIM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: APIM C2383 (8-inch touchscreen) or C3342 (4.2-inch non-touchscreen). Ignition ON. Measure the voltage between the APIM C2383-1 (8-inch touchscreen) or C3342-1 (4.2-inch non-touchscreen), circuit SBP29 (GY/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to S2 . No : VERIFY the Body Control Module (BCM) fuse 29 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
S2 CHECK THE APIM GROUND CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the APIM C2383-37 (8-inch touchscreen) or C3342-37 (4.2-inch non-touchscreen), circuit GD115 (BK/GY), harness side and ground. Are the resistances less than 5 ohms? YES : GO to S3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
S3 CHECK THE HS-CAN CIRCUITS BETWEEN THE APIM AND THE DLC FOR AN OPEN Measure the resistance between the APIM C2383-53 (8-inch touchscreen) or C3342-53 (4.2-inch non-touchscreen), circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the APIM C2383-54 (8-inch touchscreen) or C3342-54 (4.2-inch non-touchscreen), circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : If the vehicle is equipped with 4.2-inch non-touchscreen, CONNECT the negative battery cable. GO to S5 . If the vehicle is equipped with 8-inch touchscreen, GO to S4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
S4 CHECK THE MS-CAN CIRCUITS BETWEEN THE APIM AND THE DLC FOR AN OPEN Measure the resistance between the APIM C2383-16, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the APIM C2383-17, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to S5 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
S5 CHECK FOR CORRECT APIM OPERATION Disconnect the APIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the APIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new APIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test T: The Head Up Display (HUD) Module Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - CRUISE CONTROL for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - VEHICLE EMERGENCY MESSAGING SYSTEM for schematic and connector information.

PINPOINT TEST T: THE HUD DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 91

Scheme 91: PINPOINT TEST T: THE HUD DOES NOT RESPOND TO THE SCAN TOOL

Scheme 92

Scheme 93

Scheme 94

T1 CHECK THE HUD VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: HUD module C2395. Ignition ON. Measure the voltage between the HUD module C2395-4, circuit CBP35 (YE/GY), harness side and ground, and the HUD module C2395-5, circuit SBP11 (BU/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to T2 . No : VERIFY the Body Control Module (BCM) fuses 11 (10A) and 35 (5A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. TEST the system for normal operation.
T2 CHECK THE HUD MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the HUD module 2395-1, circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to T3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. TEST the system for normal operation.
T3 CHECK THE HS-CAN CIRCUITS BETWEEN THE HUD MODULE AND THE DLC FOR AN OPEN Measure the resistance between the HUD module C2395-3, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the HUD module C2395-2, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to T4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
T4 CHECK FOR CORRECT HUD MODULE OPERATION Disconnect the HUD module connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the HUD module connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new HUD module. REFER to «COLLISION AVOIDANCE»(ref-494602) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test U: The Cruise-Control Module (C-CM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - CRUISE CONTROL for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - VEHICLE EMERGENCY MESSAGING SYSTEM for schematic and connector information.

PINPOINT TEST U: THE C-CM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 95

Scheme 95: PINPOINT TEST U: THE C-CM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 96

Scheme 97

Scheme 98

U1 CHECK THE C-CM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: C-CM C1582. Ignition ON. Measure the voltage between the C-CM C1582-1, circuit SBB79 (WH/RD), harness side and ground, and the C-CM C1582-10, circuit CBB91 (BN), harness side and ground. Is the voltage greater than 10 volts? YES : GO to U2 . No : VERIFY the Battery Junction Box (BJB) fuses 79 (5A) and 91 (10A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. TEST the system for normal operation.
U2 CHECK THE C-CM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the C-CM C1582-4, circuit GD120 (BK/GN), harness side and ground. Is the resistance less than 5 ohms? YES : GO to U3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. TEST the system for normal operation.
U3 CHECK THE HS-CAN CIRCUITS BETWEEN THE C-CM AND THE DLC FOR AN OPEN Measure the resistance between the C-CM C1582-8, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the C-CM C1582-7, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to U4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
U4 CHECK FOR CORRECT C-CM OPERATION Disconnect the C-CM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the C-CM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new C-CM. REFER to «CRUISE CONTROL»(ref-494601) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test V: The Side Obstacle Detection Control Module - Left (SOD-L) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - VEHICLE EMERGENCY MESSAGING SYSTEM for schematic and connector information.

PINPOINT TEST V: THE SOD-L DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 99

Scheme 99: PINPOINT TEST V: THE SOD-L DOES NOT RESPOND TO THE SCAN TOOL

Scheme 100

Scheme 101

Scheme 102

V1 CHECK THE SOD-L VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: SOD-L C4369. Ignition ON. Measure the voltage between the SOD-L C4369-5, circuit CBP34 (VT/BN), harness side and ground. Is the voltage greater than 10 volts? YES : GO to V2 . No : VERIFY the Body Control Module (BCM) fuse 34 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
V2 CHECK THE SOD-L GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the SOD-L C4369-2, circuit GD149 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to V3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
V3 CHECK THE MS-CAN CIRCUITS BETWEEN THE SOD-L AND THE DLC FOR AN OPEN Measure the resistance between the DCSM C4369-4, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the SOD-L C4369-3, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to V4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
V4 CHECK FOR CORRECT SOD-L OPERATION Disconnect the SOD-L connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the SOD-L connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new SOD-L. REFER to «SIDE AND REAR VISION»(ref-494634) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test W: The Side Obstacle Detection Control Module - Right (SOD-R) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - VEHICLE EMERGENCY MESSAGING SYSTEM for schematic and connector information.

PINPOINT TEST W: THE SOD-R DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 103

Scheme 103: PINPOINT TEST W: THE SOD-R DOES NOT RESPOND TO THE SCAN TOOL

Scheme 104

Scheme 105

Scheme 106

W1 CHECK THE SOD-R VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: SOD-R C4370. Ignition ON. Measure the voltage between the SOD-R C4370-2, circuit CBP34 (VT/BN), harness side and ground. Are the voltages greater than 10 volts? YES : GO to W2 . No : VERIFY the Body Control Module (BCM) fuse 34 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
W2 CHECK THE SOD-R GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the SOD-R C4370-5, circuit GD151 (BK/GN), harness side and ground; and between the SOD-R C4370-6, circuit GD151 (BK/GN), harness side and ground. Is the resistance less than 5 ohms? YES : GO to W3 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
W3 CHECK THE MS-CAN CIRCUITS BETWEEN THE SOD-R AND THE DLC FOR AN OPEN Measure the resistance between the SOD-R C4370-3, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the SOD-R C4370-4, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to W4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
W4 CHECK FOR CORRECT SOD-R OPERATION Disconnect the SOD-R connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the SOD-R connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new SOD-R. REFER to «SIDE AND REAR VISION»(ref-494634) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test X: The Tire Pressure Monitor (TPM) Module Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - TIRE PRESSURE MONITOR SYSTEM for schematic and connector information.

PINPOINT TEST X: THE TPM MODULE DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 107

Scheme 107: PINPOINT TEST X: THE TPM MODULE DOES NOT RESPOND TO THE SCAN TOOL

Scheme 108

Scheme 109

Scheme 110

X1 CHECK THE TPM MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: TPM Module C2406. Ignition ON. Measure the voltage between the TPM module C2406-4, circuit SBP06 (BN/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to X2 . No : VERIFY the Body Control Module (BCM) fuse 6 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
X2 CHECK THE TPM MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the TPM module C2406-6, circuit GD133 (BK), harness side and ground. Is the resistance less than 5 ohms? YES : GO to X3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
X3 CHECK THE MS-CAN CIRCUITS BETWEEN THE TPM MODULE AND THE DLC FOR AN OPEN Measure the resistance between the TPM module C2406-1, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the TPM module C2406-2, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to X4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
X4 CHECK FOR CORRECT TPM MODULE OPERATION Disconnect the TPM module connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the TPM module connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new TPM module. REFER to «WHEELS AND TIRES»(ref-494563) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test Y: The Front Controls Interface Module (FCIM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - TURN SIGNAL, STOP LIGHTS & HAZARD LIGHTS for schematic and connector information.

PINPOINT TEST Y: THE FCIM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 111

Scheme 111: PINPOINT TEST Y: THE FCIM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 112

Scheme 113

Y1 CHECK THE FCIM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: FCIM C2402. Ignition ON. Measure the voltage between the FCIM C2402-1, circuit SBP29 (GY/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to Y2 . No : VERIFY the Body Control Module (BCM) fuse 29 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
Y2 CHECK THE FCIM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the FCIM C2402-6, circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to Y3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
Y3 CHECK THE I-CAN CIRCUITS BETWEEN THE FCIM AND THE IPC FOR AN OPEN Disconnect: IPC C220. Measure the resistance between the FCIM C2402-2, circuit VDB13 (BU/GY), harness side and the IPC C220-25, circuit VDB13 (BU/GY), harness side. Measure the resistance between the FCIM C2402-3, circuit VDB14 (VT/GY), harness side and the IPC C220-26, circuit VDB14 (VT/GY), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to Y4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
Y4 CHECK FOR CORRECT FCIM OPERATION Disconnect the FCIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the FCIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new FCIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. REPEAT the network test with the scan tool. TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test Z: The Remote Function Actuator (RFA) Module Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - REMOTE KEYLESS ENTRY & ALARM for schematic and connector information.

PINPOINT TEST Z: THE RFA MODULE DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 114

Scheme 114: PINPOINT TEST Z: THE RFA MODULE DOES NOT RESPOND TO THE SCAN TOOL

Scheme 115

Scheme 116

Scheme 117

Scheme 118

Z1 CHECK THE RFA MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: RFA module C2153C (Natural hardshell). Ignition ON. Measure the voltage between the RFA module C2153C-1, circuit SBP23 (WH/RD), harness side and ground; and the RFA module C2153C-5, circuit SBP27 (BU/RD), harness side and ground. Are the voltages greater than 10 volts? YES : GO to Z2 . No : VERIFY the Body Control Module (BCM) fuses 23 (15A) and 27 (20A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
Z2 CHECK THE RFA MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the RFA module C2153C-3, circuit GD115 (BK/GY), harness side and ground. Disconnect: RFA module C2153D (Gray hardshell). Measure the resistance between the RFA module C2153D-1, circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to Z3 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
Z3 CHECK THE MS-CAN CIRCUITS BETWEEN THE RFA MODULE AND THE DLC FOR AN OPEN Disconnect: RFA module C2153E (Green hardshell). Measure the resistance between the RFA module 2153E-5, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the RFA module C2153E-4, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to Z4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
Z4 CHECK FOR CORRECT RFA MODULE OPERATION Disconnect all the RFA module connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the RFA module connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new RFA module. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-494579) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test AA: The Heated Steering Wheel Module (HSWM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - ADJUSTABLE STEERING COLUMN for schematic and connector information.

PINPOINT TEST AA: THE HSWM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 119

Scheme 119: PINPOINT TEST AA: THE HSWM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 120

Scheme 121

Scheme 122

AA1 CHECK THE HSWM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: HSWM C2406. Ignition ON. Measure the voltage between the HSWM C2406-1, circuit CBP36 (BU/BN), harness side and ground. Is the voltage greater than 10 volts? YES : GO to AA2 . No : VERIFY the Body Control Module (BCM) fuse 36 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
AA2 CHECK THE HSWM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the HSWM C2406-14, circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? YES : GO to AA3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
AA3 CHECK THE MS-CAN CIRCUITS BETWEEN THE HSWM AND THE DLC FOR AN OPEN Measure the resistance between the HSWM C2406-4, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the HSWM C2406-3, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AA4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
AA4 CHECK FOR CORRECT HSWM OPERATION Disconnect the HSWM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the HSWM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new HSWM. REFER to «WHEELS AND TIRES»(ref-494563) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test AB: The Transmission Control Module (TCM) Does Not Respond To The Scan Tool

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

Refer to OEM WIRING DIAGRAMS - TRANSMISSION CONTROLS - 6F35 or OEM WIRING DIAGRAMS - TRANSMISSION CONTROLS - 6F50 & 6F55 for schematic and connector information.

PINPOINT TEST AB: THE TCM DOES NOT RESPOND TO THE SCAN TOOL

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 123

Scheme 123: PINPOINT TEST AB: THE TCM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 124

Scheme 125

Scheme 126

AB1 CHECK THE TCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: TCM C1750. Ignition ON. Measure the voltage between the TCM, harness side and ground as follows: TCM Connector-Pin Circuit C1750-1 SBB56 (VT/RD) C1750-31 SBB56 (VT/RD) C1750-33 CBB90 (YE/OG) Are the voltages greater than 10 volts? YES : GO to AB2 . No : VERIFY the Body Control Module (BCM) fuses 56 (15A) and 90 (10A) are OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
AB2 CHECK THE TCM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the TCM C1750-39, circuit GD120 (BK/GN), harness side and ground; and between the TCM C1750-41, circuit GD120 (BK/GN) harness side and ground. Is the resistance less than 5 ohms? YES : GO to AB3 . No : REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
AB3 CHECK THE HS-CAN CIRCUITS BETWEEN THE TCM AND THE DLC FOR AN OPEN Measure the resistance between the TCM C1750-47, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the TCM C1750-48, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AB4 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
AB4 CHECK FOR CORRECT TCM OPERATION Disconnect the TCM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the TCM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new TCM. REFER to «AUTOMATIC TRANSAXLE/TRANSMISSION - 6F35»(ref-494559) . CLEAR the DTCs. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test AC: No Medium Speed Controller Area Network (MS-CAN) Communication, All Modules Are Not Responding

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

PINPOINT TEST AC: NO MS-CAN COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test. Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 127

Scheme 127: PINPOINT TEST AC: NO MS-CAN COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Scheme 128

Scheme 129

Scheme 130

AC1 CHECK THE DLC PINS FOR DAMAGE Ignition OFF. Disconnect the scan tool cable from the Data Link Connector (DLC). Inspect the DLC pins 3 and 11 for damage. Are DLC pins 3 and 11 OK? YES : GO to AC2 . No : REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AC2 CHECK THE MS-CAN TERMINATION RESISTANCE Disconnect: Negative Battery Cable. Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Is the resistance between 54 and 66 ohms? YES : GO to AC3 . No : GO to AC5 .
AC3 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and ground; and between the DLC C251-11, circuit VDB07 (VT/OG), harness side and ground. Are the resistances greater than 1, 000 ohms? YES : GO to AC4 . No : GO to AC12 .
AC4 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE Connect the negative battery cable. Ignition ON. Measure the voltage between the DLC C251-3, circuit VDB06 (GY/OG), harness side and ground; and between the DLC C251-11, circuit VDB07 (VT/OG), harness side and ground. Are the voltages greater than 6 volts? YES : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the Network Test with the scan tool. No : GO to AC13 .
AC5 CHECK THE MS-CAN TERMINATION RESISTOR Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Is the resistance between 108 and 132 ohms? YES : GO to AC6 . No : GO to AC9 .
AC6 CHECK THE MS-CAN TERMINATION RESISTOR WITH THE BCM DISCONNECTED Disconnect: BCM C2280B. Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Is the resistance between 108 and 132 ohms? YES : GO to AC7 . No : GO to AC8 .
AC7 CHECK THE MS-CAN CIRCUITS BETWEEN THE BCM AND THE DLC FOR AN OPEN Measure the resistance between the BCM C2280B-38, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the BCM C2280B-39, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AC21 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AC8 CHECK THE MS-CAN CIRCUITS BETWEEN THE HVAC MODULE AND THE DLC FOR AN OPEN Disconnect: HVAC module C2357 (EMTC) or C228A (DATC). Measure the resistance between the HVAC module C2357-12 (EMTC) C228A-12 (DATC), circuit VDB06 (GY/OG), harness side and the DLC C251-3 circuit VDB06 (GY/OG), harness side. Measure the resistance between the HVAC module C2357-13 (EMTC) C228A-13 (DATC), circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AC26 . 418-00-81 No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AC9 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Is the resistance less than 5 ohms? YES : GO to AC11 . No : GO to AC10 .
AC10 CHECK THE MS-CAN CIRCUITS BETWEEN THE BCM AND THE DLC FOR AN OPEN Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side. Is the resistance greater than 10, 000 ohms? YES : REPAIR the DLC or REPAIR the circuit in question. CLEAR the DTCs. REPEAT the Network Test with the scan tool. No : A capacitor internal to a module may still be draining, causing irregular resistance readings. WAIT 5 minutes. REPEAT the pinpoint test.
AC11 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER While measuring the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side, disconnect the following modules one at a time until the resistance is greater than 5 ohms. APIM C2383 (if equipped) BCM C2280B DSM C3299B (if equipped) DCSM C3036C (if equipped) GPSM C2398 (if equipped) HSWM C2406 (if equipped) LTM C4174B (if equipped) SOD-L C4369 (if equipped) SOD-R C4370 (if equipped) TPM module C2406 RFA module C2153E (if equipped) HVAC module C2357 (EMTC) or C228A (DATC) Did the resistance change to greater than 5 ohms with one of the modules disconnected? YES : CONNECT the negative battery cable. For the APIM, GO to AC20 . For the BCM, GO to AC21 . For the DSM, GO to AC22 . For the DCSM, GO to AC23 . For the GPSM, GO to AC24 . For the HSWM, GO to AC25 . For the HVAC module, GO to AC26 . For the LTM, GO to AC27 . For the RFA, GO to AC28 . For the SOD-L, GO to AC29 . For the SOD-R, GO to AC30 . For the TPM module, GO to AC31 . No : REPAIR circuits VDB06 (GY/OG) and VDB07 (VT/OG) for being shorted together. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AC12 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and ground; and between the DLC C251-11, circuit VDB07 (VT/OG), harness side and ground. Check for the short to ground on both circuits after disconnecting each module. Disconnect the following modules one at a time until the resistance to ground is greater than 1, 000 ohms. APIM C2383 (if equipped) BCM C2280B DSM C3299B (if equipped) DCSM C3036C (if equipped) GPSM C2398 (if equipped) HSWM C2406 (if equipped) LTM C4174B (if equipped) SOD-L C4369 (if equipped) SOD-R C4370 (if equipped) TPM module C2406 RFA module C2153E (if equipped) HVAC module C2357 (EMTC) or C228A (DATC) Did the resistance change to greater than 1, 000 ohms with one of the modules disconnected? YES : CONNECT the negative battery cable. For the APIM, GO to AC20 . For the BCM, GO to AC21 . For the DSM, GO to AC22 . For the DCSM, GO to AC23 . For the GPSM, GO to AC24 . For the HSWM, GO to AC25 . For the HVAC module, GO to AC26 . For the LTM, GO to AC27 . For the RFA, GO to AC28 . For the SOD-L, GO to AC29 . For the SOD-R, GO to AC30 . For the TPM module, GO to AC31 . No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AC13 CHECK FOR RESTORED COMMUNICATION WITH THE BCM, GPSM, AND THE APIM DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BCM Fuses 18 (10A), 26 (5A) and 29 (20A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other MS-CAN modules pass the network test? YES : INSTALL the removed fuses. If the vehicle is not equipped with 8-inch touchscreen, GO to «Pinpoint Test I»(ref-494551-S35181478892012081400000) . If the vehicle is equipped with 8-inch touchscreen, GO to AC14 . No : INSTALL the removed fuses. GO to AC15 .
AC14 CHECK FOR RESTORED COMMUNICATION WITH THE GPSM AND THE APIM DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect modules one at a time until other MS-CAN modules pass the network test. Skip to the end once network operation is restored. Disconnect: GPSM C2398 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: APIM C2383 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Do all other MS-CAN modules pass the network test? YES : CONNECT all modules. For restored operation with the GPSM disconnected, GO to «Pinpoint Test P»(ref-494551-S02176234242012081400000) . For restored operation with the APIM disconnected, GO to «Pinpoint Test S»(ref-494551-S14996873992012081400000) . No : CONNECT all modules. GO to «Pinpoint Test I»(ref-494551-S35181478892012081400000) .
AC15 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SOD-L, SOD-R, HVAC MODULE, DCSM, AND THE LTM DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BJB Fuse 28 (30A) and BCM Fuses 34 (10A) and 9 (10A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other MS-CAN modules pass the network test? YES : INSTALL the removed fuses. If the vehicle is not equipped with blind side monitor or power liftgate GO to «Pinpoint Test J»(ref-494551-S09763735142012081400000) . If the vehicle is equipped with blind side monitor or power liftgate GO to AC16 No : INSTALL the removed fuses. GO to AC17
AC16 CHECK FOR RESTORED COMMUNICATION WITH THE SOD-L, SOD-R, HVAC MODULE AND THE LTM DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect modules one at a time until other MS-CAN modules pass the network test. Skip to the end once network operation is restored. Disconnect: SOD-L C4369 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: SOD-R C4370 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: LTM C4174B (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: HVAC module C2357 (EMTC) or C228A (DATC). Enter the following diagnostic mode on the scan tool: Network Test. Do all other MS-CAN modules pass the network test? YES : CONNECT all modules. For restored operation with the SOD-L disconnected, GO to «Pinpoint Test V»(ref-494551-S06899509112012081400000) . For restored operation with the SOD-R disconnected, GO to «Pinpoint Test W»(ref-494551-S04593579472012081400000) . For restored operation with the HVAC module disconnected, GO to «Pinpoint Test J»(ref-494551-S09763735142012081400000) . For restored operation with the LTM disconnected, GO to «Pinpoint Test N»(ref-494551-S28424624252012081400000) . No : CONNECT all modules. The MS-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AC17 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE DSM, TPM MODULE, AND THE HSWM DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BJB Fuse 23 (30A) and BCM Fuses 6 (5A), 7 (7.5A) and 36 (10A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuse. If the vehicle is not equipped with memory seats or heated steering wheel GO to «Pinpoint Test X»(ref-494551-S34540684422012081400000) . If the vehicle is equipped with memory seats or heated steering wheel, GO to AC18 . No : If the vehicle is equipped with RFA module, INSTALL the removed fuses. GO to AC19 . If the vehicle is not equipped with RFA module, INSTALL the removed fuses. The MS-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AC18 CHECK FOR RESTORED COMMUNICATION WITH THE DSM, TPM MODULE, AND THE HSWM DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect modules one at a time until other MS-CAN modules pass the network test. Skip to the end once network operation is restored. Disconnect: DSM C3299D (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: TPM module C2406. Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: HSWM C2406 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Do all other MS-CAN modules pass the network test? YES : CONNECT all modules. For restored operation with the DSM disconnected, GO to «Pinpoint Test O»(ref-494551-S34427981602012081400000) . For restored operation with the TPM module disconnected, GO to «Pinpoint Test X»(ref-494551-S34540684422012081400000) . For restored operation with the HSWM disconnected, GO to «Pinpoint Test AA»(ref-494551-S03515859492012081400000) . No : CONNECT all modules. The MS-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AC19 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RFA MODULE DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BCM Fuses 27 (20A) and 23 (15A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuse. GO to «Pinpoint Test Z»(ref-494551-S04469643822012081400000) . No : INSTALL the removed fuses. The MS-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AC20 CHECK THE APIM FOR CORRECT OPERATION Disconnect the APIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the APIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new APIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC21 CHECK THE BCM FOR CORRECT OPERATION Disconnect all the BCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the BCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new BCM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-494579) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC22 CHECK THE DSM FOR CORRECT OPERATION Disconnect all the DSM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the DSM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new DSM. REFER to «SEATING»(ref-494596) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC23 CHECK THE DCSM FOR CORRECT OPERATION Disconnect all the DCSM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the DCSM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new DCSM. REFER to «SEATING»(ref-494596) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC24 CHECK THE GPSM FOR CORRECT OPERATION Disconnect the GPSM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the GPSM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new GPSM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC25 CHECK THE HSWM FOR CORRECT OPERATION Disconnect the HSWM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the HSWM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new HSWM. REFER to «STEERING COLUMN»(ref-494604) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC26 CHECK THE HVAC MODULE FOR CORRECT OPERATION Disconnect all the HVAC module connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the HVAC module connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new HVAC module. REFER to «CLIMATE CONTROL»(ref-494627) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC27 CHECK THE LTM FOR CORRECT OPERATION Disconnect all the LTM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the LTM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new LTM. REFER to «BODY CLOSURES»(ref-494637) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC28 CHECK THE RFA FOR CORRECT OPERATION Disconnect all the RFA connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the RFA connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new RFA. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-494579) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC29 CHECK THE SOD-L FOR CORRECT OPERATION Disconnect the SOD-L connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the SOD-L connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new SOD-L. REFER to «SIDE AND REAR VISION»(ref-494634) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC30 CHECK THE SOD-R FOR CORRECT OPERATION Disconnect the SOD-R connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the SOD-R connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new SOD-R. REFER to «SIDE AND REAR VISION»(ref-494634) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AC31 CHECK THE TPM MODULE FOR CORRECT OPERATION Disconnect the TPM module connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the TPM module connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new TPM module. REFER to «WHEELS AND TIRES»(ref-494563) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.

Pinpoint Test AD: No High Speed Controller Area Network (HS-CAN) Communication, All Modules Are Not Responding

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

PINPOINT TEST AD: NO HS-CAN COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Scheme 131

Scheme 131: PINPOINT TEST AD: NO HS-CAN COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Scheme 132

Scheme 133

Scheme 134

AD1 CHECK THE DLC PINS FOR DAMAGE Ignition OFF. Disconnect the scan tool cable from the Data Link Connector (DLC). Inspect the DLC pins 6 and 14 for damage. Are DLC pins 6 and 14 OK? YES : GO to AD2 . No : REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AD2 CHECK THE HS-CAN TERMINATION RESISTANCE Disconnect: Negative Battery Cable. Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance between 54 and 66 ohms? YES : GO to AD3 . No : GO to AD5 .
AD3 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and ground; and between the DLC C251-14, circuit VDB05 (WH), harness side and ground. Are the resistances greater than 1, 000 ohms? YES : GO to AD4 . No : GO to AD12 .
AD4 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE Connect the negative battery cable. Ignition ON. Measure the voltage between the DLC C251-6, circuit VDB04 (WH/BU), harness side and ground; and between the DLC C251-14, circuit VDB05 (WH), harness side and ground. Are the voltages greater than 6 volts? YES : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the Network Test with the scan tool. No : GO to AD13 .
AD5 CHECK THE HS-CAN TERMINATION RESISTOR Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance between 108 and 132 ohms? YES : GO to AD6 . No : GO to AD9 .
AD6 CHECK THE HS-CAN TERMINATION RESISTOR WITH THE PCM DISCONNECTED Disconnect: PCM C175B (3.5L/3.7L engines) or C1381B (2.0L engine). Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance between 108 and 132 ohms? YES : GO to AD7 . No : GO to AD8 .
AD7 CHECK THE HS-CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN For vehicles with the 3.5L/3.7L engine, measure the resistance between the PCM C175B-59, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. For vehicles with the 3.5L/3.7L engine, measure the resistance between the PCM C175B-58, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. For vehicles with the 2.0L engine, measure the resistance between the PCM C1381B-54, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. For vehicles with the 2.0L engine, measure the resistance between the PCM C1381B-41, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AD34 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AD8 CHECK THE HS-CAN CIRCUITS BETWEEN THE BCM AND THE DLC FOR AN OPEN Disconnect: Body Control Module (BCM) C2280F. Measure the resistance between the BCM C2280F-16, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the BCM C2280F-17, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AD26 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AD9 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance less than 5 ohms? YES : GO to AD11 . No : GO to AD10 .
AD10 CHECK THE HS-CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance greater than 10, 000 ohms? YES : REPAIR the DLC or REPAIR the circuit in question. CLEAR the DTCs. REPEAT the Network Test with the scan tool. No : A capacitor internal to a module may still be draining, causing irregular resistance readings. WAIT 5 minutes. REPEAT the pinpoint test.
AD11 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER While measuring the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side, disconnect the following modules one at a time until the resistance is greater than 5 ohms. APIM C2383 (8-inch touchscreen) or C3342 (4.2-inch non-touchscreen) (if equipped) ABS module C135 BCM C2280F C-CM C1582 (if equipped) FLM C205 LH Headlight C1021B (if equipped) HUD module C2395 (if equipped) IPC C220 OCSM C3159 PAM C4014 (if equipped) PCM C175B (3.5L/3.7L engines) or C1381B (2.0L engine) RCM C310B SCCM C2414A TCM C1750 Did the resistance change to greater than 5 ohms with one of the modules disconnected? YES : CONNECT the negative battery cable. For the APIM, GO to AD24 . For the ABS module, GO to AD25 . For the BCM, GO to AD26 . For the C-CM, GO to AD27 . For the FLM, GO to AD28 . For the LH headlamp, GO to AD29 . For the HUD module, GO to AD30 . For the IPC, GO to AD31 . For the OCSM, GO to AD32 . For the PAM, GO to AD33 . For the PCM, GO to AD33 . For the RCM, GO to AD35 . For the SCCM, GO to AD36 . For the TCM, GO to AD37 . No : REPAIR circuits VDB04 (WH/BU) and VDB05 (WH) for being shorted together. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AD12 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED While measuring the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and ground; and between the DLC C251-14, circuit VDB05 (WH), harness side and ground, check for the short to ground on both circuits after disconnecting each module. Disconnect the following modules one at a time until the resistance to ground is greater than 10, 000 ohms. APIM C2383 (8-inch touchscreen) or C3342 (4.2-inch non-touchscreen) (if equipped) ABS module C135 BCM C2280F C-CM C1582 (if equipped) FLM C205 LH Headlight C1021B (if equipped) HUD module C2395 (if equipped) IPC C220 OCSM C3159 PAM C4014 (if equipped) PCM C175B (3.5L/3.7L engines) or C1381B (2.0L engine) RCM C310B SCCM C2414A TCM C1750 Did the resistance change to greater than 1, 000 ohms with one of the modules disconnected? YES : CONNECT the negative battery cable. For the APIM, GO to AD24 . For the ABS module, GO to AD25 . For the BCM, GO to AD26 . For the C-CM, GO to AD27 . For the FLM, GO to AD28 . For the LH headlamp, GO to AD29 . For the HUD module, GO to AD30 . For the IPC, GO to AD31 . For the OCSM, GO to AD32 . For the PAM, GO to AD33 . For the PCM, GO to AD33 . For the RCM, GO to AD35 . For the SCCM, GO to AD36 . For the TCM, GO to AD37 . No : REPAIR the circuit in question. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AD13 CHECK FOR RESTORED COMMUNICATION WITH THE PCM AND TCM DISABLED NOTE: Establish an Integrated Diagnostic System (IDS) session prior to disabling the PCM in this test step. If the PCM has failed communication during multiple attempts to identify the vehicle, first identify the vehicle manually by entering a PCM part number, calibration number or tear tag when prompted by IDS. NOTE: When a vehicle is manually identified by a PCM part number, calibration number or tear tag, the IDS does not automatically run a network test. Manually select and run the Network Test. NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: Battery Junction Box (BJB) Fuses 56 (15A), 86 (7.5A) and 90 (10A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : If the vehicle is equipped with the 2.0L engine, INSTALL the removed fuses. GO to AD14 . If not, INSTALL the removed fuses. GO to «Pinpoint Test A»(ref-494551-S12747956192012081400000) . No : INSTALL the removed fuses. GO to AD15 .
AD14 CHECK FOR RESTORED COMMUNICATION WITH THE TCM DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: TCM C1750. Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuses. GO to «Pinpoint Test AB»(ref-494551-S31462768512012081400000) . No : INSTALL the removed fuses. GO to «Pinpoint Test A»(ref-494551-S12747956192012081400000) .
AD15 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE ABS MODULE DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BJB Fuses 43 (30A) and 92 (10A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuses. GO to «Pinpoint Test B»(ref-494551-S39377830532012081400000) . No : GO to AD16 .
AD16 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IPC, HCM, AND THE HUD MODULE DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BCM Fuse 11 (10A) and BJB Fuse 89 (5A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other HS-CAN modules pass the network test? YES : INSTALL the removed fuses. If the vehicle is not equipped with Head Up Display (HUD) or adaptive headlights GO to «Pinpoint Test H»(ref-494551-S17378364722012081400000) . If the vehicle is equipped with Head Up Display (HUD) or adaptive headlights, GO to AD17 . No : INSTALL the removed fuses. If the vehicle is equipped with a C-CM, GO to AD18 . If the vehicle is not equipped with a C-CM, GO to AD18 .
AD17 CHECK FOR RESTORED COMMUNICATION WITH THE IPC, HCM, AND THE HUD MODULE DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect modules one at a time until other HS-CAN modules pass the network test. Skip to the end once network operation is restored. Disconnect: IPC C220. Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: LH Headlamp C1021B (if equipped with adaptive lighting). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: HUD Module C2395 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Do all other HS-CAN modules pass the network test? YES : CONNECT all modules. For restored operation with the IPC disconnected, GO to «Pinpoint Test H»(ref-494551-S17378364722012081400000) . For restored operation with the HUD module disconnected, GO to «Pinpoint Test T»(ref-494551-S12906722582012081400000) . For restored operation with the LH headlamp disconnected, GO to «Pinpoint Test F»(ref-494551-S40961468282012081400000) . No : CONNECT all modules. The HS-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AD18 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE C-CM DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BJB Fuses 79 (5A), and 91 (10A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuses. GO to «Pinpoint Test U»(ref-494551-S23592770692012081400000) . No : GO to AD19
AD19 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RCM, OCSM, PAM, AND THE APIM DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BCM Fuses 29 (20A), 34 (10A) and 41 (7.5A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuses. GO to AD20 . No : INSTALL the removed fuses. GO to AD21 .
AD20 CHECK FOR RESTORED COMMUNICATION WITH THE RCM, OCSM, AND THE PAM, AND THE APIM DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect modules one at a time until other HS-CAN modules pass the network test. Skip to the end once network operation is restored. Disconnect: RCM C310B. Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: OCSM C3159. Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: PAM C4014 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: APIM C2383 (8-inch touchscreen) or C3342 (4.2-inch non-touchscreen) (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Do all other HS-CAN modules pass the network test? YES : CONNECT all modules. For restored operation with the RCM disconnected, GO to «Pinpoint Test C»(ref-494551-S20834458752012081400000) . For restored operation with the OCSM disconnected, GO to «Pinpoint Test E»(ref-494551-S16822203532012081400000) . For restored operation with the PAM disconnected, GO to «Pinpoint Test R»(ref-494551-S15072320772012081400000) . For restored operation with the APIM disconnected, GO to «Pinpoint Test S»(ref-494551-S14996873992012081400000) . No : CONNECT all modules. The HS-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AD21 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE BCM DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BCM Fuses 18 (10A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuse. GO to «Pinpoint Test I»(ref-494551-S35181478892012081400000) . No : INSTALL the removed fuse. GO to AD22 .
AD22 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SCCM DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: SCCM C2414A. Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : CONNECT the SCCM. GO to «Pinpoint Test G»(ref-494551-S25558169712012081400000) . No : CONNECT the SCCM. GO to AD23
AD23 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE FLM DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BJB Fuse 23 (15A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuse. GO to «Pinpoint Test M»(ref-494551-S35715599542012081400000) . No : The HS-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AD24 CHECK THE APIM FOR CORRECT OPERATION Disconnect the APIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the APIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new APIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD25 CHECK THE ABS MODULE FOR CORRECT OPERATION Disconnect the ABS module connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the ABS module connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new ABS module. REFER to «ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL»(ref-494595) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD26 CHECK THE BCM FOR CORRECT OPERATION Disconnect all the BCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the BCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new BCM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-494579) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD27 CHECK THE C-CM FOR CORRECT OPERATION Disconnect the C-CM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the C-CM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new C-CM. REFER to «CRUISE CONTROL»(ref-494601) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD28 CHECK THE FLM FOR CORRECT OPERATION Disconnect the FLM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the FLM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new FLM. REFER to «EXTERIOR LIGHTING»(ref-494583) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD29 CHECK THE HCM FOR CORRECT OPERATION Disconnect all the LH headlamp connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the LH headlamp connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new LH headlamp. REFER to «EXTERIOR LIGHTING»(ref-494583) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD30 CHECK THE HUD MODULE FOR CORRECT OPERATION Disconnect the HUD module connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the HUD module connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new HUD module. REFER to «COLLISION AVOIDANCE»(ref-494602) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD31 CHECK THE IPC FOR CORRECT OPERATION Disconnect the IPC connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the IPC connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new IPC. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-494581) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD32 CHECK THE OCSM FOR CORRECT OPERATION Disconnect the OCSM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the OCSM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new OCSM. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD33 CHECK THE PAM FOR CORRECT OPERATION Disconnect the PAM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the PAM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new PAM. REFER to «PARKING AID»(ref-494633) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD34 CHECK THE PCM FOR CORRECT OPERATION Disconnect all the PCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the PCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new PCM. REFER to «ELECTRONIC ENGINE CONTROLS»(ref-494600) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD35 CHECK THE RCM FOR CORRECT OPERATION Disconnect all the RCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the RCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new RCM. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-494575) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD36 CHECK THE SCCM FOR CORRECT OPERATION Disconnect all the SCCM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the SCCM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new SCCM. REFER to «STEERING COLUMN SWITCHES»(ref-494582) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AD37 CHECK THE TCM FOR CORRECT OPERATION Disconnect all the TCM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect all the TCM connector and make sure it is seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new TCM. REFER to «AUTOMATIC TRANSAXLE/TRANSMISSION - 6F35»(ref-494559) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.

Pinpoint Test AE: No Infotainment Controller Area Network (I-CAN) Communication, All Modules Are Not Responding

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

PINPOINT TEST AE: NO I-CAN COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Scheme 135

Scheme 135: PINPOINT TEST AE: NO I-CAN COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Scheme 136

Scheme 137

Scheme 138

Scheme 139

AE1 CHECK THE I-CAN TERMINATION RESISTANCE Disconnect: Negative Battery Cable. Measure the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Is the resistance between 54 and 66 ohms? YES : GO to AE2 . No : GO to AE4 .
AE2 CHECK THE I-CAN (+) AND I-CAN (-) CIRCUITS FOR A SHORT TO GROUND Measure the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and ground; and between the DLC C251-9, circuit VDB14 (VT/GY), harness side and ground. Are the resistances greater than 1, 000 ohms? YES : GO to AE3 . No : GO to AE11 .
AE3 CHECK THE I-CAN (+) AND I-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE Connect the negative battery cable. Ignition ON. Measure the voltage between the DLC C251-1, circuit VDB13 (BU/GY), harness side and ground; and between the DLC C251-9, circuit VDB14 (VT/GY), harness side and ground. Are the voltages greater than 6 volts? YES : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the Network Test with the scan tool. No : GO to AE12 .
AE4 CHECK THE I-CAN TERMINATION RESISTOR Measure the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Is the resistance between 108 and 132 ohms? YES : GO to AE5 . No : GO to AE8 .
AE5 CHECK THE I-CAN TERMINATION RESISTOR WITH THE IPC DISCONNECTED Disconnect: IPC C220. Measure the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Is the resistance between 108 and 132 ohms? YES : GO to AE6 . No : GO to AE7 .
AE6 CHECK THE I-CAN CIRCUITS BETWEEN THE IPC AND THE DLC FOR AN OPEN Measure the resistance between the IPC C220-25, circuit VDB13 (BU/GY), harness side and the DLC C251-1, circuit VDB13 (BU/GY), harness side. Measure the resistance between the IPC C220-26, circuit VDB14 (VT/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AE19 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AE7 CHECK THE I-CAN CIRCUITS BETWEEN THE ACM AND THE DLC FOR AN OPEN Disconnect: Audio Front Control Module (ACM) C240A. Measure the resistance between the ACM C240A-14, circuit VDB13 (BU/GY), harness side and the DLC C251-1, circuit VDB13 (BU/GY), harness side. Measure the resistance between the ACM C240A-15, circuit VDB14 (VT/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Are the resistances less than 5 ohms? YES : CONNECT the negative battery cable. GO to AE16 . No : REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AE8 CHECK THE I-CAN (+) AND I-CAN (-) CIRCUITS FOR A SHORT TOGETHER Measure the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Is the resistance less than 5 ohms? YES : GO to AE10 . No : GO to AE9 .
AE9 CHECK THE I-CAN CIRCUITS BETWEEN THE IPC AND THE DLC FOR AN OPEN Measure the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side. Is the resistance greater than 10, 000 ohms? YES : REPAIR the DLC or REPAIR the circuit in question. CLEAR the DTCs. REPEAT the Network Test with the scan tool. No : A capacitor internal to a module may still be draining, causing irregular resistance readings. WAIT 5 minutes. REPEAT the pinpoint test.
AE10 CHECK THE I-CAN (+) AND I-CAN (-) CIRCUITS FOR A SHORT TOGETHER While measuring the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and the DLC C251-9, circuit VDB14 (VT/GY), harness side, disconnect the following modules one at a time until the resistance is greater than 5 ohms. APIM C2383 (8-inch touchscreen) or C3342 (4.2-inch non-touchscreen) (if equipped) Audio DSP module C4348A (THX®) or C4326A (Sony®) (if equipped) ACM C240A FCIM C2402 FCDIM C2123 (if equipped) IPC C220 Did the resistance change to greater than 5 ohms with one of the modules disconnected? YES : CONNECT the negative battery cable. For the APIM, GO to AE14 . For the audio DSP module, GO to AE15 . For the ACM, GO to AE16 . For the FCIM, GO to AE17 . For the FCDIM, GO to AE18 . For the IPC, GO to AE19 . No : REPAIR the circuit in question. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AE11 CHECK THE I-CAN (+) AND I-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED Measure the resistance between the DLC C251-1, circuit VDB13 (BU/GY), harness side and ground; and between the DLC C251-9, circuit VDB14 (VT/GY), harness side and ground; disconnect the following modules one at a time until the resistance to ground is greater than 1, 000 ohms. APIM C2383 (8-inch touchscreen) or C3342 (4.2-inch non-touchscreen) (if equipped) Audio DSP module C4348A (THX®) or C4326A (Sony®) (if equipped) ACM C240A FCIM C2402 FCDIM C2123 (if equipped) IPC C220 Are the resistances greater than 1, 000 ohms? YES : CONNECT the negative battery cable. For the APIM, GO to AE14 . For the audio DSP module, GO to AE15 . For the ACM, GO to AE16 . For the FCIM, GO to AE17 . For the FCDIM, GO to AE18 . For the IPC, GO to AE19 . No : REPAIR the circuit in question. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the Network Test with the scan tool.
AE12 CHECK FOR RESTORED COMMUNICATION WITH THE APIM, FCIM, AND THE FCDIM DISCONNECTED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect modules one at a time until other I-CAN modules pass the network test. Skip to the end once network operation is restored. Disconnect: APIM C2383 (8-inch touchscreen) or C3342 (4.2-inch non-touchscreen) (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: FCIM C2402. Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: FCDIM C2123 (if equipped). Enter the following diagnostic mode on the scan tool: Network Test. Disconnect: ACM C240A. Enter the following diagnostic mode on the scan tool: Network Test. Do all other I-CAN modules pass the network test? YES : CONNECT all modules. For restored operation with the APIM disconnected, GO to «Pinpoint Test S»(ref-494551-S14996873992012081400000) . For restored operation with the FCIM disconnected, GO to «Pinpoint Test Y»(ref-494551-S17497786882012081400000) . For restored operation with the FCDIM disconnected, GO to «Pinpoint Test D»(ref-494551-S01928755732012081400000) . For restored operation with the ACM disconnected, GO to «Pinpoint Test K»(ref-494551-S09050749012012081400000) . No : If the vehicle is equipped with an audio DSP module, GO to AE13 . If the vehicle is not equipped with an audio DSP module, CONNECT all modules. The I-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AE13 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE AUDIO DSP MODULE DISABLED NOTE: When re-running the network test, close the Network Test application first or the screen display reverts back to the prior run Network Test results. Disconnect: BCM Fuse 19 (20A). Enter the following diagnostic mode on the scan tool: Network Test. Repeat the network test. Do all other modules pass the network test? YES : INSTALL the removed fuse. GO to «Pinpoint Test L»(ref-494551-S26663305692012081400000) . No : INSTALL the removed fuse. The I-CAN tests within specification. VERIFY the correct operation of the scan tool on a known good vehicle.
AE14 CHECK THE APIM FOR CORRECT OPERATION Disconnect the APIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the APIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new APIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AE15 CHECK THE AUDIO DSP MODULE FOR CORRECT OPERATION Disconnect all the audio DSP module connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the audio DSP module connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new audio DSP module. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AE16 CHECK THE ACM FOR CORRECT OPERATION Disconnect all the ACM connectors. Check for: Corrosion Damaged pins Pushed-out pins Connect all the ACM connectors and make sure they are seated correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new ACM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AE17 CHECK THE FCIM FOR CORRECT OPERATION Disconnect the FCIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the FCIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new FCIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AE18 CHECK THE FCDIM FOR CORRECT OPERATION Disconnect the FCDIM connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the FCDIM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new FCDIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-494606) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.
AE19 CHECK THE IPC FOR CORRECT OPERATION Disconnect the IPC connector. Check for: Corrosion Damaged pins Pushed-out pins Connect the IPC connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? YES : INSTALL a new IPC. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-494581) . CLEAR the DTCs. CONNECT all modules. REPEAT the network test with the scan tool. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CONNECT all modules. REPEAT the Network Test with the scan tool.

Pinpoint Test AF: No Power To The Data Link Connector (DLC)

Refer to OEM WIRING DIAGRAMS - MODULE COMMUNICATIONS NETWORK for schematic and connector information.

PINPOINT TEST AF: NO POWER TO THE DLC

Note. Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

Note. Failure to disconnect the battery when instructed results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 140

Scheme 140: PINPOINT TEST AF: NO POWER TO THE DLC

Scheme 141

Scheme 142

AF1 CHECK THE DLC PINS FOR DAMAGE Ignition OFF. Disconnect the scan tool cable from the DLC. Inspect DLC pins 4, 5 and 16 for damage. Are DLC pins 4, 5 and 16 OK? YES : GO to AF2 . No : REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
AF2 CHECK THE DLC VOLTAGE SUPPLY FOR AN OPEN Measure the voltage between the DLC C251-16, circuit SBP24 (VT/RD), harness side and ground. Is the voltage greater than 10 volts? YES : GO to AF3 . No : VERIFY the Body Control Module (BCM) fuse 24 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEMS WIRING DIAGRAMS article to identify the possible causes of the circuit short. REPEAT the network test with the scan tool.
AF3 CHECK THE DLC GROUND CIRCUITS FOR AN OPEN Disconnect: Negative Battery Cable. Measure the resistance between the DLC C251-4, circuit GD115 (BK/GY), harness side and ground; and between the DLC C251-5, circuit GD115 (BK/GY), harness side and ground.
Are the resistances less than 5 ohms? YES : REPAIR the scan tool. CONNECT the negative battery cable. REPEAT the network test with the scan tool. No : REPAIR the circuit in question. CONNECT the negative battery cable. REPEAT the network test with the scan tool.

Module Communications Network: Diagnosis Ford Edge I рестайлинг

Inspection and Verification

DTC Charts

Symptom Chart

Pinpoint Test A: The PCM Does Not Respond To The Scan Tool

Scheme 2

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Pinpoint Test B: The ABS Module Does Not Respond To The Scan Tool

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Scheme 10

Pinpoint Test C: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool

PINPOINT TEST C: THE RCM DOES NOT RESPOND TO THE SCAN TOOL

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Scheme 13

Pinpoint Test D: The Front Control/Display Interface Module (FCDIM) Does Not Respond To The Scan Tool

PINPOINT TEST D: THE FCDIM DOES NOT RESPOND TO THE SCAN TOOL

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Scheme 17

Pinpoint Test E: The Occupant Classification System Module (OCSM) Does Not Respond To The Scan Tool

PINPOINT TEST E: THE OCSM DOES NOT RESPOND TO THE SCAN TOOL

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Scheme 21

Pinpoint Test F: The Headlamp Control Module (HCM) Does Not Respond To The Scan Tool

PINPOINT TEST F: THE HCM DOES NOT RESPOND TO THE SCAN TOOL

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Pinpoint Test G: The Steering Column Control Module (SCCM) Does Not Respond To The Scan Tool

PINPOINT TEST G: THE SCCM DOES NOT RESPOND TO THE SCAN TOOL

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Scheme 31

Pinpoint Test H: The Instrument Panel Cluster (IPC) Does Not Respond To The Scan Tool

PINPOINT TEST H: THE IPC DOES NOT RESPOND TO THE SCAN TOOL

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Pinpoint Test I: The Body Control Module (BCM) Does Not Respond To The Scan Tool

PINPOINT TEST I: THE BCM DOES NOT RESPOND TO THE SCAN TOOL

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Pinpoint Test J: The HVAC Module Does Not Respond To The Scan Tool

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Pinpoint Test K: The Audio Front Control Module (ACM) Does Not Respond To The Scan Tool

PINPOINT TEST K: THE ACM DOES NOT RESPOND TO THE SCAN TOOL

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Scheme 50

Pinpoint Test L: The Audio Digital Signal Processing (DSP) Module Does Not Respond To The Scan Tool

PINPOINT TEST L: THE AUDIO DSP MODULE DOES NOT RESPOND TO THE SCAN TOOL

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