Module Communications Network: Diagnosis Ford Escape I рестайлинг 2

Inspection and Verification

1. Verify the customer concern.
2. 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 BJB fuse(s): MIDI 80A (no communication with power steering control module PS CM) 5 (10A) (no communication with PCM, TCM [Hybrid only]) 6 (5A) (no communication with ABS module [Hybrid only]) 8 (10A) (no communication with BCM [Hybrid only]) 9 (50A) (no communication with ABS module) 18 (20A) (no communication with ABS module [Hybrid only]) 23 (5A) (no communication with BCM [Hybrid only]) 24 (10A) (no communication with TCM [Hybrid only]) 26 (20A) (no communication with BCM [Hybrid only]) 27 (20A) (no communication with ABS module [Hybrid only]) 29 (15A) (no communication with PCM) SJB fuse(s): 3 (15A) (no communication with APIM) 5 (10A) (no communication with the SJB) 11 (10A) (no communication with 4X4 control module) 14 (10A) (no communication with FCIM, FDIM, SDARS module) 15 (10A) (no communication with HVAC module) 20 (15A) (no power to scan tool) 29 (5A) (no communication with IC 31 (10A) (no communication with RCM) 34 (5A) (no communication with ABS module [except Hybrid]) 35 (10A) (no communication with PAM, 4X4 control module, PSCM) 37 (10A) (no communication with HVAC module) 39 (20A) (no communication with ACM) 43 (10A) (no communication with the IC) 46 (7.5A) (no communication with the OCSM) DLC Wiring, terminals or connectors
3. Connect the scan tool to the Data Link Connector (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 V»(ref-344076-S18084364282009101600000) , to diagnose No Power To The Scan Tool.
4. Establish a scan tool session. NOTE: The scan tool will first attempt to communicate with the PCM, after establishing communication with the PCM, the scan tool will then attempt to communicate with all other modules on the vehicle. If an IDS session cannot be established wit 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.
5. 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-344076-S19065022942009101600000) to diagnose the failed communication network. If a module fails to communication during the network test, GO to «SYMPTOM CHART»(ref-344076-S19065022942009101600000) .
6. Retrieve and review the DTCs. If the DTCs retrieved are related to the concern, go to «DTC CHARTS»(ref-344076-S13194735772009101600000) . Follow the non-network DTC diagnostics (B-codes, C-codes, P-codes) prior to the network DTC diagnostics (U-codes). For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Chart in «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . If no DTCs related to the concern are retrieved, GO to «SYMPTOM CHART»(ref-344076-S19065022942009101600000) .

DTC Charts

Note. Network DTCs (U-codes) are often a result of intermittent concerns such as faulty wiring or low battery voltage occurrences. Additionally, vehicle service procedures such as module reprogramming will 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.

Communication Network DTC Chart

Note. DTC U1900 will set in a module that is reporting a communication fault from another module on the data bus. The module that reports the fault is not the problem module.

DTC DESCRIPTION CHART

Symptom Chart

SYMPTOM CHART

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

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Electronic Engine Controls - 2.5L for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Electronic Engine Controls - 3.0L 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

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1. A1 VERIFY WHETHER OTHER HS-CAN MODULES PASS THE NETWORK TEST Ignition ON. 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): 4x4 control module, ABS module, Accessory Protocol Interface Module (APIM), Battery Control Module (BCM), Instrument Cluster (IC), Occupant Classification System Module (OCSM), Power Steering Control Module (PSCM), Restraints Control Module (RCM), Transmission Control Module (TCM) or PCM? Yes: If "pass" or a DTC was listed next to the PCM, a network fault is not currently present. GO to «PINPOINT TEST R»(ref-344076-S41538779132009101600000) 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 HS-CAN. GO to «PINPOINT TEST S»(ref-344076-S00134567652009101600000) to diagnose no HS-CAN communication.
2. A2 VERIFY THE PC/ED MANUAL PINPOINT TEST QA HAS BEEN CARRIED OUT Verify that pinpoint test QA has been carried out. Has pinpoint test QA been carried out? Yes: GO to A3 . No: REFER to the «INTRODUCTION - GASOLINE MODELS»(ref-342225) , pinpoint test QA to diagnose no communication with the PCM.
3. A3 CHECK THE HS-CAN TERMINATION RESISTANCE 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: CONNECT the negative battery cable. GO to A5 . No: GO to A4 .
4. A4 CHECK THE CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN 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. Measure the resistance between the PCM C175b-58, 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.
5. 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 seat 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 - 2.5L»(ref-344104) or «ELECTRONIC ENGINE CONTROLS - 3.0L (4V)»(ref-344105) . CONNECT all modules. CONNECT the negative battery cable. 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. CONNECT all modules. 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 SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 5

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Scheme 8

1. B1 CHECK THE ABS MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: ABS Module C155. Ignition ON. Measure voltage between the ABS module, harness side and ground as follows: ABS CONNECTOR-PIN REFERENCE ABS Connector-Pin Circuit C155-1 SBB09 (RD) C155-8 CBK34 (VT/BN) (Escape and Mariner) CBK03 (GY) (Hybrid) C155-32 SBB18 (YE/RD) Are the voltages greater than 10 volts? Yes: GO to B2 . No: For Escape and Mariner, VERIFY the Battery Junction Box (BJB) fuses 18 (20A), 9 (50A) and fuse 25 (5A) (late build only) and the Smart Junction Box (SJB) fuse 34 (5A) (early build only) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool. For Hybrid, VERIFY the Battery Junction Box (BJB) fuses 27 (10A), 9 (50A) and 18 (20A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. B2 CHECK THE ABS MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the ABS module, harness side and ground as follows: ABS CONNECTOR-PIN REFERENCE ABS Connector-Pin Circuit C155-16 GD120 (BK/GN) ABS CONNECTOR-PIN REFERENCE ABS Connector-Pin Circuit C155-16 GD120 (BK/GN) C155-47 GD113 (BK/YE) Are the resistances less than 5 ohms? Yes: GO to B3 . No: REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. B3 CHECK THE HS-CAN CIRCUITS BETWEEN THE ABS MODULE AND THE DLC FOR AN OPEN Measure the resistance between the ABS module C155-12, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the ABS module C155-13, 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.
4. 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 «VEHICLE DYNAMIC SYSTEMS»(ref-344090) . 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 4X4 Control Module Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Four Wheel Drive 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 9

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Scheme 12

1. C1 CHECK THE 4X4 CONTROL MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: 4X4 Control Module C3184. Ignition ON. Measure the voltage between the 4X4 control module C3184-4, circuit CBP35 (YE/GY), harness side and ground; and between the 4X4 control module C3184-5, circuit SBP11 (BU/RD), harness side and ground. Are the voltages greater than 10 volts? Yes: GO to C2 . No: VERIFY the Smart Junction Box (SJB) fuse 11 (10A) and 35 (10A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. C2 CHECK THE 4X4 CONTROL MODULE GROUND CIRCUIT Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the 4X4 control module C3184-15, circuit GD182 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? Yes: GO to C3 . No: REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. C3 CHECK THE HS-CAN CIRCUITS BETWEEN THE 4X4 CONTROL MODULE AND THE DLC FOR AN OPEN Measure the resistance between the 4X4 control module C3184-3, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the 4X4 control module C3184-11, 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 C4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. C4 CHECK FOR CORRECT 4X4 CONTROL MODULE OPERATION Disconnect the 4X4 control module connector. Check for: corrosion damaged pins pushed-out pins Connect the 4X4 control 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 4X4 control module. REFER to «FOUR-WHEEL DRIVE (FWD) SYSTEMS»(ref-344096) . 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 D: The Instrument Cluster (IC) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Instrument Cluster for schematic and connector information.

PINPOINT TEST D: THE IC 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 13

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Scheme 17

1. D1 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: GO to D2 . No: CONNECT the negative battery cable. GO to D4 .
2. D2 CHECK THE IC GROUND CIRCUIT FOR AN OPEN Disconnect: IC C220. Measure the resistance between the IC C220-L, circuit GD112 (BK/GN) harness side and ground. Is the resistance less than 5 ohms? Yes: CONNECT the negative battery cable. GO to D3 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. D3 CHECK THE IC VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition ON. Measure the voltage between the IC, harness side and ground as follows: CONNECTOR-PIN REFERENCE IC Connector-Pin Circuit C220-6 CBP43 (GY) C220-19 SBP26 (YE/RD) C220-20 CBP29 (WH/VT) Are the voltages greater than 10 volts? Yes: GO to D4 . No: VERIFY the Smart Junction Box (SJB) fuses 26 (10A), 29 (5A) or 43 (10A) are OK. If OK, REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. D4 CHECK THE HS-CAN CIRCUITS BETWEEN THE IC AND THE DLC FOR AN OPEN Ignition OFF. Measure the resistance between the IC C220-15, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the IC C220-14, 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 D5 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
5. D5 CHECK THE MS-CAN CIRCUITS BETWEEN THE DLC AND THE IC FOR AN OPEN Measure the resistance between the IC C220-2, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the IC C220-1, 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: GO to D6 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
6. D6 CHECK FOR CORRECT IC OPERATION Disconnect the IC connector. Check for: corrosion damaged pins pushed-out pins Connect the IC 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 IC. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-344081) . 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 E: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Supplemental Restraint Systems for schematic and connector information.

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

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.

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1. E1 CHECK THE RCM CONNECTION Ignition OFF. Depower the SRS. Refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) . Disconnect: RCM C2041a. Disconnect: RCM C2041b. Are RCM C2041a and C2041b pins OK? Yes: GO to E2 . No: REPAIR the RCM connector pins as necessary. REPOWER the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) . CLEAR the DTCs. REPEAT the network test with the scan tool.
2. E2 CHECK THE RCM CASE GROUND FOR AN OPEN Measure the resistance between the metal RCM case and a good chassis ground. Is the resistance less than 5 ohms? Yes: GO to E3 . No: REPAIR the case ground connection. REPOWER the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) . CLEAR the DTCs. REPEAT the network test with the scan tool.
3. E3 CHECK THE RCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Repower the SRS. Refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) . Ignition ON. Measure the voltage between the RCM C2041a-13, circuit CBP31 (BN/OG), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to E4 . No: VERIFY the Smart Junction Box (SJB) fuse 31 (10A) is OK. If OK, REPAIR the circuit in question. REPOWER the SRS. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) . If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. E4 CHECK THE HS-CAN CIRCUITS BETWEEN THE RCM AND THE DLC FOR AN OPEN Ignition OFF. Measure the resistance between the RCM C2041b-10, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the RCM C2041b-9, 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 E5 . No: REPAIR the circuit in question. REPOWER the SRS. CLEAR the DTCs. REPEAT the network test with the scan tool.
5. E5 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 seat 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-344095) . 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 Occupant Classification System Module (OCSM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Supplemental Restraint Systems for schematic and connector information.

PINPOINT TEST F: 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. Failure to disconnect the battery when instructed will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 21

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Scheme 24

1. F1 CHECK THE OCSM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Disconnect: OCSM C3285. Ignition OFF. Ignition ON. Measure the voltage between the OCSM C3285-1, circuit CBP46 (WH/BU), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to F2 . No: VERIFY the Smart Junction Box (SJB) fuse 46 (7.5A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. F2 CHECK THE OCSM GROUND CIRCUIT FOR AN OPEN Disconnect: Negative Battery Cable. Ignition OFF. Measure the resistance between the OCSM C3285-14, circuit GD183 (BK/WH), 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.
3. F3 CHECK THE HS-CAN CIRCUITS BETWEEN THE OCSM AND THE DLC FOR AN OPEN Measure the resistance between the OCSM C3285-18, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the OCSM C3285-9, 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 F4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. F4 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. 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-344095) . 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 Power Steering Control Module (PSCM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Power Steering Controls for schematic and connector information.

PINPOINT TEST G: THE PSCM 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 25

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Scheme 28

1. G1 CHECK THE PSCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Disconnect: PSCM C 1463a (Escape and Mariner) or C2231a (Hybrid). Ignition ON. Measure the voltage between the PSCM C1463a-1 or C2231a-1, circuit CBP35 (YE/GY), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to G2 . No: VERIFY the Smart Junction Box (SJB) fuse 35 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. G2 CHECK THE PSCM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: PSCM C 1463b (Escape and Mariner) or C2231b (Hybrid). Disconnect: Negative Battery Cable. Measure the resistance between the PSCM C1463b-2 or C2231b-2, circuit GD116 (BK/VT), harness side and ground. Is the resistance less than 5 ohms? Yes: GO to G3 . No: REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. G3 CHECK THE HS-CAN CIRCUITS BETWEEN THE PSCM AND THE DLC FOR AN OPEN Measure the resistance between the PSCM C1463a-2 or C2231b-2, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the PSCM C1463a-3 or C2231b-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 G4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. G4 CHECK FOR CORRECT PSCM OPERATION Disconnect all the PSCM connectors. Check for: corrosion damaged pins pushed-out pins Connect all the PSCM connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new steering column assembly. REFER to «STEERING COLUMN»(ref-344094) . 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 Transmission Control Module (TCM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Transmission Controls for schematic and connector information.

PINPOINT TEST H: 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 29

Scheme 30

Scheme 31

1. H1 CHECK THE TCM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: TCM C1458a. Ignition ON. Measure the voltage between the TCM, harness side and ground as follows: CONNECTOR-PIN REFERENCE Connector-Pin Circuit C1458a-4 CBB24 (VT/GN) C1458a-5 CBB24 (VT/BN) C1458a-12 SBB05 (GY/RD) Are the voltages greater than 10 volts? Yes: GO to H2 . No: VERIFY the Battery Junction Box (BJB) fuse 5 (10A) or fuse 24 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. H2 CHECK THE TCM GROUND CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the TCM harness side and ground as follows: CONNECTOR-PIN REFERENCE Connector-Pin Circuit C1458a-2 GD121 (BK/YE) C1458a-8 GD121 (BK/YE) Are the resistances less than 5 ohms? Yes: GO to H3 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. H3 CHECK THE HS-CAN CIRCUITS BETWEEN THE TCM AND THE DLC FOR AN OPEN Measure the resistance between the TCM C1458a-1, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the TCM C1458a-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 H4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. H4 CHECK FOR CORRECT TCM OPERATION Disconnect all the TCM connectors. Check for: corrosion damaged pins pushed-out pins Connect all the TCM connectors and make sure they seat 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 - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT)»(ref-344058) . 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 Battery Control Module (BCM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Electronic Engine Controls - 2.3L for schematic and connector information.

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

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

Scheme 32

Scheme 33

1. I1 CHECK THE POWER TO THE BCM WARNING: When servicing the high-voltage system, establish a buffer zone per the specified procedure. Failure to follow this instruction may result in serious personal injury or death. WARNING: Turn OFF the ignition switch for a minimum of 5 minutes before removing high-voltage cables. High-voltage cables and wiring are orange in color. The nominal high-voltage traction battery voltage (HVTB) is 330 V DC. Failure to follow these instructions may result in serious personal injury or death. WARNING: Depower the high-voltage traction battery (HVTB) before carrying out any removal or installation procedures affecting the high-voltage battery system. Failure to follow this instruction may result in serious personal injury or death. WARNING: Wear high-voltage insulated safety gloves and a face shield when working with high-voltage batteries or cables. The high-voltage insulated safety gloves should be of the appropriate safety and protection rating. Inspect the gloves before use and always wear them with the leather outer glove. Any hole in the rubber insulating glove is a potential entry point for high-voltage. Failure to follow these instructions may result in serious personal injury or death. Ignition OFF. Disconnect: BCM C4227a. Ignition ON. Measure the voltage between the BCM, harness side and ground as follows: CONNECTOR-PIN REFERENCE Connector-Pin Circuit C4227a-4 SBB15 (WH/RD) C4227a-5 SBB15 (WH/RD) C4227a-6 SBB15 (WH/RD) C4227a-10 SBB05 (GY/RD) C4227a-11 SBB05 (GY/RD) C4227a-14 CBB26 (BU/WH) C4227a-19 CBB23 (BN/YE) Are the voltages greater than 10 volts? Yes: GO to I2 . No: VERIFY the Battery Junction Box (BJB) fuse 8 (10A), fuse 26 (20A), and fuse 15 (50A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. I2 CHECK THE BCM GROUNDS Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the BCM, harness side and ground as follows: CONNECTOR-PIN REFERENCE Connector-Pin Circuit C4227a-30 GD182 (BK/GY) C4227a-31 GD182 (BK/GY) C4227a-35 GD149 (BK/GY) C4227a-36 GD149 (BK/GY) C4227a-37 GD149 (BK/GY) Are the resistances less than 5 ohms? Yes: GO to I3 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. I3 CHECK THE HS-CAN CIRCUITS BETWEEN THE BCM AND THE DLC FOR AN OPEN Measure the resistance between the BCM C4227a-29, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the BCM C4227a-28, 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 I4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. I4 CHECK FOR CORRECT BCM OPERATION NOTE: Do not disconnect the high voltage cables or connectors in the following step. Disconnect the BCM connectors. Check for: corrosion damaged pins pushed-out pins Connect the BCM connectors and make they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new High Voltage Traction Battery (HVTB). REFER to «HIGH VOLTAGE TRACTION BATTERY»(ref-344108) . 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 J: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Grounds for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Power Distribution/SJB for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

PINPOINT TEST J: THE SJB 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 34

Scheme 35

Scheme 36

Scheme 37

1. J1 CHECK THE SJB FUSE FOR VOLTAGE Ignition OFF. Measure the voltage between the back of the SJB fuse 5 (10A) terminals (both sides) and ground. Are the voltages greater than 10 volts? Yes: GO to J2 . No: VERIFY the Smart Junction Box (SJB) fuse 5 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. J2 CHECK THE SJB GROUND CIRCUIT FOR AN OPEN Disconnect: Negative Battery Cable. Disconnect: SJB C2280d. Measure the resistance between the SJB C2280d-8, circuit GD182 (BK/GY), harness side and ground; and between the SJB C2280d-12, circuit GD182 (BK/GY), harness side and ground. Are the resistances less than 5 ohms? Yes: GO to J3 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. J3 CHECK THE MS-CAN CIRCUITS BETWEEN THE SJB AND THE DLC FOR AN OPEN Disconnect: SJB C2280b. Measure the resistance between the SJB C2280b-37, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the SJB C2280b-38, 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.
4. J4 CHECK FOR CORRECT SJB OPERATION Disconnect all the SJB connectors. Check for: corrosion damaged pins pushed-out pins Connect all the SJB connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . 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 Control Module (ACM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 38

Scheme 39

Scheme 40

Scheme 41

1. 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 SBP39 (WH/RD), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to K2 . No: VERIFY the Smart Junction Box (SJB) fuse 39 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. K2 CHECK THE ACM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the ACM C240a-13, circuit GD115 (BK/GY), 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.
3. K3 CHECK THE MS-CAN CIRCUITS BETWEEN THE ACM AND THE DLC FOR AN OPEN Disconnect: ACM C240b. Measure the resistance between the ACM C240b-15, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the ACM C240b-16, 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 K4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. 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 seat 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-344106) . 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 L: The HVAC Module Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 42

Scheme 43

Scheme 44

Scheme 45

1. L1 CHECK THE HVAC MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: HVAC Module C2356a (DATC) or C2357a (EMTC). Ignition ON. Measure the voltage between the HVAC module C2356a-12 or C2357a-12, circuit CBP37 (WH), harness side and ground and between the HVAC module C2356a-13 or C2357a-13, circuit SBP15 (WH/RD) harness side and ground. Are the voltages greater than 10 volts? Yes: GO to L2 . No: VERIFY the Smart Junction Box (SJB) fuse 15 (10A) or fuse 37 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. L2 CHECK THE HVAC MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the HVAC module C2356a-23 or C2357a-23, circuit GD114 (BK/BU), harness side and ground. Is the resistance less than 5 ohms? Yes: GO to L3 . No: REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. L3 CHECK THE MS-CAN CIRCUITS BETWEEN THE HVAC MODULE AND THE DLC FOR AN OPEN Measure the resistance between the HVAC module C2356a-25 or C2357a-25, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the HVAC module C2356a-26 or C2357a-26, 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 L4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. L4 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 seat 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 SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS»(ref-344063) or «CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS - HYBRID»(ref-344064) . 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 Satellite Digital Audio Receiver System (SDARS) Module Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Audio System for schematic and connector information.

PINPOINT TEST M: THE SDARS 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 46

Scheme 47

Scheme 48

Scheme 49

1. M1 CHECK THE SDARS MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: SDARS Module C3290. Ignition ON. Measure the voltage between the SDARS module C3290-9, circuit SBP14 (BN/RD), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to M2 . No: VERIFY the Smart Junction Box (SJB) fuse 14 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. M2 CHECK THE SDARS MODULE GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the SDARS module C3290-3, 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. REPEAT the network test with the scan tool.
3. M3 CHECK THE MS-CAN CIRCUITS BETWEEN THE SDARS MODULE AND THE DLC FOR AN OPEN Measure the resistance between the SDARS module C3290-1, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the SDARS module C3290-7, 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 M4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. M4 CHECK FOR CORRECT SDARS MODULE OPERATION Disconnect all the SDARS module connectors. Check for: corrosion damaged pins pushed-out pins Connect all the SDARS module connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SDARS module. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-344106) . 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 Front Display Interface Module (FDIM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Audio System/Navigation for schematic and connector information.

PINPOINT TEST N: THE FDIM 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 50

Scheme 51

Scheme 52

Scheme 53

1. N1 CHECK THE FDIM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: FDIM C2123. Ignition ON. Measure the voltage between the FDIM C2123-12, circuit SBP14 (BN/RD), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to N2 . No: VERIFY the Smart Junction Box (SJB) fuse 14 (10A) is OK. If OK, REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. N2 CHECK THE FDIM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the FDIM C2123-8, circuit GD114 (BK/BU), 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.
3. N3 CHECK THE MS-CAN CIRCUITS BETWEEN THE FDIM AND THE DLC FOR AN OPEN Measure the resistance between the FDIM C2123-4, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the FDIM C2123-5, 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.
4. N4 CHECK FOR CORRECT FDIM OPERATION Disconnect the FDIM connector. Check for: corrosion damaged pins pushed-out pins Connect the FDIM 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 FDIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-344106) . 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 Front Controls Interface Module (FCIM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Audio System/Navigation for schematic and connector information.

PINPOINT TEST O: 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 54

Scheme 55

Scheme 56

Scheme 57

1. O1 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 SBP14 (BN/RD), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to O2 . No: VERIFY the Smart Junction Box (SJB) fuse 14 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. O2 CHECK THE FCIM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the FCIM C2402-2, circuit GD115 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? Yes: GO to O3 . No: REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. O3 CHECK THE MS-CAN CIRCUITS BETWEEN THE FCIM AND THE DLC FOR AN OPEN Measure the resistance between the FCIM C2402-3, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the FCIM C2402-4, 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 O4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. O4 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-344106) . 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 P: The Accessory Protocol Interface Module (APIM) Does Not Respond To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

PINPOINT TEST P: 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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 58

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

1. P1 CHECK THE APIM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Disconnect: APIM C3338. Ignition ON. Measure the voltage between the APIM C3338-1, circuit SBP14 (BN/RD), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to P2 . No: VERIFY the SJB fuse 13 (15A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. P2 CHECK THE APIM GROUND CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the APIM C3338-37, circuit GD115 (BK/GY), harness side and ground; and between the APIM C3338-38, circuit GD115 (BK/GY), harness side and ground. Are the resistances 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.
3. P3 CHECK THE HS-CAN CIRCUITS BETWEEN THE APIM AND THE DLC FOR AN OPEN Measure the resistance between the APIM C3338-53, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the APIM C3338-54, 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 P4 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
4. P4 CHECK THE MS-CAN CIRCUITS BETWEEN THE APIM AND THE DLC FOR AN OPEN Measure the resistance between the APIM C3338-16, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the APIM C3338-17, 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 P5 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
5. P5 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-344106) . 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 PAM DOES NOT RESPOND TO THE SCAN TOOL OR NO ISO 9141 NETWORK COMMUNICATION

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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 64

Scheme 65

Scheme 66

Scheme 67

Scheme 68

Scheme 69

1. Q1 CHECK THE DLC PINS FOR DAMAGE NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the Pinpoint Test. Ignition OFF. Disconnect the scan tool cable from the DLC. Inspect the DLC pin 7 for damage. Is the DLC pin 7 OK? Yes: GO to Q2 . No: REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. Q2 CHECK THE PAM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Disconnect: PAM C4014. Ignition ON. Measure the voltage between the PAM C4014-1, circuit CBP35 (YE/GY), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to Q3 . No: VERIFY the Smart Junction Box (SJB) fuse 35 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
3. Q3 CHECK THE ISO 9141 CIRCUIT FOR A SHORT TO VOLTAGE Measure the voltage between the DLC C251-7, circuit VDB10 (GY), harness side and ground. Is any voltage present? Yes: REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool. No: GO to Q4 .
4. Q4 CHECK THE PAM GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the PAM C4014-4, circuit GD182 (BK/GY), harness side and ground. Is the resistance less than 5 ohms? Yes: GO to Q5 . No: REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
5. Q5 CHECK THE ISO 9141 CIRCUIT FOR A SHORT TO GROUND Measure the resistance between the DLC C251-7, circuit VDB10 (GY), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: GO to Q6 . No: REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
6. Q6 CHECK THE ISO 9141 COMMUNICATIONS NETWORK CIRCUIT BETWEEN THE PAM AND THE DLC FOR AN OPEN Measure the resistance between the PAM C4014-8, circuit VDB10 (GY), harness side and the DLC C251-7, circuit VDB10 (GY), harness side. Is the resistance less than 5 ohms? Yes: CONNECT the negative battery cable. GO to Q7 . No: REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
7. Q7 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-344149) . 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: INTERMITTENT NO HS-CAN COMMUNICATION, COMMUNICATION CAN BE INTERMITTENTLY ESTABLISHED

Note. Various modules will set network DTCs during this test procedure. Clear the DTCs from all modules after the diagnostic procedure is complete.

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

Scheme 70

Scheme 71

Scheme 72

1. R1 CHECK THE DLC PINS FOR DAMAGE Ignition OFF. Disconnect the scan tool cable from the DLC. Inspect DLC pins 6 and 14 for damage. Are DLC pins 6 and 14 OK? Yes: GO to R2 . No: REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. R2 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 R3 . No: GO to «PINPOINT TEST S»(ref-344076-S00134567652009101600000) .
3. R3 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: CONNECT the battery negative cable. GO to R4 . No: GO to «PINPOINT TEST S»(ref-344076-S00134567652009101600000) .
4. R4 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE 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. Is the voltage greater than 6 volts? Yes: REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool. No: GO to R5 .
5. R5 CHECK FOR RESTORED COMMUNICATION WITH THE PCM DISABLED NOTE: An Integrated Diagnostic System (IDS) session must be established 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 will not automatically run a network test. The network test must be manually selected and run. NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: Battery Junction Box (BJB) Fuses 5 (10A) and 29 (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: GO to «PINPOINT TEST A»(ref-344076-S22640879072009101600000) . No: For Escape Hybrid and Mariner Hybrid, INSTALL the removed fuses. GO to R6 . For Escape and Mariner, INSTALL the removed fuses. GO to R7 .
6. R6 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE BCM DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: BJB Fuses 26 (20A) and 8 (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-344076-S24446270432009101600000) . No: INSTALL the removed fuse. GO to R7 .
7. R7 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE PSCM AND 4X4 CONTROL MODULE (IF EQUIPPED) DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 35 (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 not equipped with a 4X4 control module, INSTALL the removed fuses, GO to «PINPOINT TEST G»(ref-344076-S39078225912009101600000) . If the vehicle is equipped with a 4X4 control module, INSTALL the removed fuses. GO to R8 . No: INSTALL the removed fuse. GO to R9 .
8. R8 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE 4X4 CONTROL MODULE DISCONNECTED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: 4X4 Control Module C3184. 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 4x4 control module. GO to «PINPOINT TEST C»(ref-344076-S13964789942009101600000) . No: CONNECT the 4x4 control module. GO to «PINPOINT TEST G»(ref-344076-S39078225912009101600000) .
9. R9 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RCM DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 31 (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 E»(ref-344076-S14531952082009101600000) . No: INSTALL the removed fuse. GO to R10 .
10. R10 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE OCSM DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 46 (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 fuse. GO to «PINPOINT TEST F»(ref-344076-S11788086412009101600000) . No: GO to R11 .
11. R11 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IC DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuses 26 (10A), 29 (5A) and 43 (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 D»(ref-344076-S38626555512009101600000) . No: If the vehicle is equipped with an Accessory Protocol Interface Module (APIM), INSTALL the removed fuses. GO to R12 . If the vehicle is not equipped with an APIM, INSTALL the removed fuses. GO to R13 .
12. R12 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE APIM DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 3 (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 P»(ref-344076-S19958122112009101600000) . No: GO to R13 .
13. R13 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE ABS MODULE DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 34 (5A) (Escape and Mariner, Early Build) or BJB Fuse 27 (10A) (Hybrid) or BJB Fuse 25 (5A) (Escape and Mariner, Late Build). 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 B»(ref-344076-S07085009622009101600000) . No: If the vehicle is not a Hybrid Electric Vehicle (HEV), INSTALL the removed fuse. An intermittent fault is not present. GO to «PINPOINT TEST S»(ref-344076-S00134567652009101600000) . If the vehicle is an HEV, INSTALL the removed fuse. GO to R14 .
14. R14 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE HEV TCM DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: BJB Fuses 5 (10A) and 24 (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 H»(ref-344076-S24443463572009101600000) . No: INSTALL the removed fuses. An intermittent fault is not present. GO to «PINPOINT TEST S»(ref-344076-S00134567652009101600000) .

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

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Electronic Engine Controls -2.5L for schematic and connector information.

PINPOINT TEST S: 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.

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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

1. S1 CHECK THE DLC PINS FOR DAMAGE Ignition OFF. Inspect DLC pins 6 and 14 for damage. Are DLC pins 6 and 14 OK? Yes: GO to S2 . No: REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. S2 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 S3 . No: GO to S5 .
3. S3 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: CONNECT the negative battery cable. GO to S4 . No: GO to S21 .
4. S4 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE 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. Is the voltage greater than 6 volts? Yes: REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool. No: The HS-CAN has tested within specifications. GO to «PINPOINT TEST R»(ref-344076-S41538779132009101600000) to test for an intermittent network fault condition.
5. S5 CHECK THE HS-CAN TERMINATION RESISTOR Measure the resistance between the DLC J251-6, 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 S6 . No: GO to S9 .
6. S6 CHECK THE HS-CAN TERMINATION RESISTOR WITH THE PCM DISCONNECTED Disconnect: PCM C175b. 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 S7 . No: GO to S8 .
7. S7 CHECK THE HS-CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN 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. Measure the resistance between the PCM C175b-58, 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 S31 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
8. S8 CHECK THE HS-CAN CIRCUITS BETWEEN THE IC AND THE DLC FOR AN OPEN Disconnect: IC C220. Measure the resistance between the IC C220-15, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the IC C220-14, 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 S37 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
9. S9 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 S11 . No: GO to S10 .
10. S10 CHECK THE HS-CAN CIRCUITS FOR AN OPEN AT THE 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 greater than 10,000 ohms? Yes: REPAIR the DLC or REPAIR the circuit in question. CONNECT the negative battery cable. 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.
11. S11 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE PCM DISCONNECTED Disconnect: PCM C175b. Measure the resistance between the DLC J251-6, 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 S12 . No: CONNECT the negative battery cable. GO to S31 .
12. S12 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE ABS MODULE DISCONNECTED Disconnect: ABS Module C155. 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: If the vehicle is equipped with a 4X4 control module, GO to S13 . If the vehicle is not equipped with a 4X4 control module, GO to S14 . No: CONNECT the negative battery cable. GO to S32 .
13. S13 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE 4X4 CONTROL MODULE DISCONNECTED Disconnect: 4X4 Control Module C3184. 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 S14 . No: CONNECT the negative battery cable. GO to S33 .
14. S14 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE RCM DISCONNECTED Disconnect: RCM C2041b. 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 S15 . No: CONNECT the negative battery cable. GO to S34 .
15. S15 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE OCSM DISCONNECTED Disconnect: OCSM C3285. Measure the resistance between the DLC J251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance less than 5 ohms? Yes: If the vehicle is equipped with an Accessory Protocol Interface Module (APIM), GO to S16 . If the vehicle is not equipped with an APIM, GO to S17 . No: CONNECT the negative battery cable. GO to S35 .
16. S16 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE APIM DISCONNECTED Disconnect: APIM C3338. 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 S17 . No: CONNECT the negative battery cable. GO to S36 .
17. S17 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE IC DISCONNECTED Disconnect: IC C220. 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 S18 . No: CONNECT the negative battery cable. GO to S37 .
18. S18 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE PSCM DISCONNECTED Disconnect: PSCM C 1463a (Escape and Mariner) or C2231a (Hybrid). 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: If the vehicle is a Hybrid Electric Vehicle (HEV), GO to S19 . If the vehicle is not an HEV, REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool. No: CONNECT the negative battery cable. GO to S38 .
19. S19 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE TCM DISCONNECTED Disconnect: TCM C1458a. Measure the resistance between the DLC J251-6, 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 S20 . No: CONNECT the negative battery cable. GO to S39 .
20. S20 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE BCM DISCONNECTED WARNING: When servicing the high-voltage system, establish a buffer zone per the specified procedure. Failure to follow this instruction may result in serious personal injury or death. WARNING: Turn OFF the ignition switch for a minimum of 5 minutes before removing high-voltage cables. High-voltage cables and wiring are orange in color. The nominal high-voltage traction battery voltage (HVTB) is 330 V DC. Failure to follow these instructions may result in serious personal injury or death. WARNING: Depower the high-voltage traction battery (HVTB) before carrying out any removal or installation procedures affecting the high-voltage battery system. Failure to follow this instruction may result in serious personal injury or death. WARNING: Wear high-voltage insulated safety gloves and a face shield when working with high-voltage batteries or cables. The high-voltage insulated safety gloves should be of the appropriate safety and protection rating. Inspect the gloves before use and always wear them with the leather outer glove. Any hole in the rubber insulating glove is a potential entry point for high-voltage. Failure to follow these instructions may result in serious personal injury or death. Disconnect: BCM C4227a. Measure the resistance between the DLC J251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance less than 5 ohms? Yes: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool. No: CONNECT the negative battery cable. GO to S40 .
21. S21 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE PCM DISCONNECTED Disconnect: PCM C175b. 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: CONNECT the negative battery cable. GO to S31 . No: GO to S22 .
22. S22 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE ABS MODULE DISCONNECTED Disconnect: ABS Module C155. 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: CONNECT the negative battery cable. GO to S32 . No: If the vehicle is equipped with a 4X4 control module, GO to S23 . If the vehicle is not equipped with a 4X4 control module, GO to S24 .
23. S23 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE 4X4 CONTROL MODULE DISCONNECTED Disconnect: 4X4 Control Module C3184. Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances greater than 1,000 ohms? Yes: CONNECT the negative battery cable. GO to S33 . No: GO to S24 .
24. S24 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE RCM DISCONNECTED Disconnect: RCM C2041b. Measure the resistance between the DLC J251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances greater than 1,000 ohms? Yes: CONNECT the negative battery cable. GO to S34 . No: GO to S25 .
25. S25 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE OCSM DISCONNECTED Disconnect: OCSM C3285. Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances greater than 1,000 ohms? Yes: CONNECT the negative battery cable. GO to S35 . No: If the vehicle is equipped with an Accessory Protocol Interface Module (APIM), GO to S26 . If the vehicle is not equipped with an APIM, GO to S27 .
26. S26 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE APIM DISCONNECTED Disconnect: APIM C3338. 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: CONNECT the negative battery cable. GO to S36 . No: GO to S27 .
27. S27 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE IC DISCONNECTED Disconnect: IC C220. 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: CONNECT the negative battery cable. GO to S37 . No: GO to S28 .
28. S28 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE PSCM DISCONNECTED Disconnect: PSCM C1463a (Escape and Mariner) or C2231a (Hybrid). 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: CONNECT the negative battery cable. GO to S38 . No: If the vehicle is a Hybrid Electric Vehicle (HEV), GO to S29 . If the vehicle is not an HEV, REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
29. S29 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE TCM DISCONNECTED Disconnect: TCM C1458a. 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: CONNECT the negative battery cable. GO to S39 . No: GO to S30 .
30. S30 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE BCM DISCONNECTED WARNING: When servicing the high-voltage system, establish a buffer zone per the specified procedure. Failure to follow this instruction may result in serious personal injury or death. WARNING: Turn OFF the ignition switch for a minimum of 5 minutes before removing high-voltage cables. High-voltage cables and wiring are orange in color. The nominal high-voltage traction battery voltage (HVTB) is 330 V DC. Failure to follow these instructions may result in serious personal injury or death. WARNING: Depower the high-voltage traction battery (HVTB) before carrying out any removal or installation procedures affecting the high-voltage battery system. Failure to follow this instruction may result in serious personal injury or death. WARNING: Wear high-voltage insulated safety gloves and a face shield when working with high-voltage batteries or cables. The high-voltage insulated safety gloves should be of the appropriate safety and protection rating. Inspect the gloves before use and always wear them with the leather outer glove. Any hole in the rubber insulating glove is a potential entry point for high-voltage. Failure to follow these instructions may result in serious personal injury or death. Disconnect: BCM C4227a. Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances greater than 1,000 ohms? Yes: CONNECT the negative battery cable. GO to S40 . No: REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
31. S31 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 seat 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 - 2.5L»(ref-344104) or «ELECTRONIC ENGINE CONTROLS - 3.0L (4V)»(ref-344105) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
32. S32 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 «VEHICLE DYNAMIC SYSTEMS»(ref-344090) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
33. S33 CHECK FOR CORRECT 4X4 CONTROL MODULE OPERATION Disconnect the 4X4 control module connector. Check for: corrosion damaged pins pushed-out pins Connect the 4X4 control 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 4X4 control module. REFER to «TRANSFER CASE-POWER TRANSFER UNIT (PTU)»(ref-344082) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
34. S34 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 seat correctly. Verify the concern is still present. Is the concern still present? Yes: INSTALL a new RCM. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
35. S35 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. REFER to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
36. S36 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. Verify the concern is still present. Is the concern still present? Yes: INSTALL a new APIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-344106) . CONNECT all modules. 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. REPOWER the SRS. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
37. S37 CHECK FOR CORRECT IC OPERATION Disconnect the IC connector. Check for: corrosion damaged pins pushed-out pins Connect the IC 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 IC. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-344081) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
38. S38 CHECK FOR CORRECT PSCM OPERATION Disconnect all the PSCM connectors. Check for: corrosion damaged pins pushed-out pins Connect all the PSCM connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new steering column assembly. REFER to «STEERING COLUMN»(ref-344094) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
39. S39 CHECK FOR CORRECT TCM OPERATION Disconnect the TCM connector. Check for: corrosion damaged pins pushed-out pins Connect the TCM 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 - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT)»(ref-344058) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
40. S40 CHECK FOR CORRECT BCM OPERATION NOTE: Do not disconnect the high voltage cables or connectors in the following step. Disconnect the BCM low voltage connectors. Check for: corrosion damaged pins pushed-out pins Connect the BCM low voltage connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new High Voltage Traction Battery (HVTB). REFER to «HIGH VOLTAGE TRACTION BATTERY»(ref-344108) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.

PINPOINT TEST T: INTERMITTENT NO MS-CAN COMMUNICATION, COMMUNICATION CAN BE INTERMITTENTLY ESTABLISHED

Note. Various modules will set network DTCs during this test procedure. Clear DTCs from all modules after the diagnostic procedure is completed.

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

Scheme 73

Scheme 74

Scheme 75

Scheme 76

1. T1 CHECK THE DLC PINS FOR DAMAGE Ignition OFF. Disconnect the scan tool cable from the DLC. Inspect DLC pins 3 and 11 for damage. Are DLC pins 3 and 11 OK? Yes: GO to T2 . No: REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. T2 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 T3 . No: GO to «PINPOINT TEST U»(ref-344076-S16634395682009101600000) .
3. T3 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: CONNECT the negative battery cable. GO to T4 . No: GO to «PINPOINT TEST U»(ref-344076-S16634395682009101600000) .
4. T4 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE 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. Is the voltage greater than 6 volts? Yes: REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool. No: GO to T5 .
5. T5 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SJB DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 5 (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 J»(ref-344076-S17568759312009101600000) . No: INSTALL the removed fuse. GO to T6 .
6. T6 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE HVAC MODULE DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuses 37 (10A) and 15 (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 L»(ref-344076-S30946720522009101600000) . No: INSTALL the removed fuses. GO to T7 .
7. T7 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE ACM DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 39 (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 K»(ref-344076-S07973458742009101600000) . No: If the vehicle is equipped with an Accessory Protocol Interface Module (APIM), INSTALL the removed fuse. GO to T8 . If the vehicle is not equipped with an APIM, INSTALL the removed fuse. GO to T9 .
8. T8 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE APIM DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 3 (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 fuses. GO to «PINPOINT TEST P»(ref-344076-S19958122112009101600000) . No: INSTALL the removed fuses. GO to T9 .
9. T9 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE FCIM, FDIM AND/OR SDARS MODULE DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuse 14 (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: For vehicles equipped with an FDIM only, INSTALL the removed fuse. GO to «PINPOINT TEST N»(ref-344076-S25346321242009101600000) . For vehicles also equipped with an FCIM and/or a SDARS module, INSTALL the removed fuse. GO to T10 . No: INSTALL the removed fuse. GO to T13 .
10. T10 VERIFY VEHICLE EQUIPMENT - FCIM Inspect the vehicle for an FCIM. Is the vehicle equipped with an FCIM? Yes: GO to T11 . No: GO to T12 .
11. T11 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE FCIM DISCONNECTED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: FCIM C2402. 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 FCIM. GO to «PINPOINT TEST O»(ref-344076-S09749823682009101600000) . No: CONNECT the FCIM. GO to T12 .
12. T12 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SDARS MODULE DISCONNECTED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SDARS Module 33290. 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 SDARS module. GO to «PINPOINT TEST M»(ref-344076-S27453066452009101600000) . No: CONNECT the SDARS module. GO to «PINPOINT TEST N»(ref-344076-S25346321242009101600000) .
13. T13 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IC DISABLED NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network test results. Disconnect: SJB Fuses 26 (10A), 29 (5A) and 43 (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 D»(ref-344076-S38626555512009101600000) . No: INSTALL the removed fuses. An intermittent fault is not present. GO to «PINPOINT TEST U»(ref-344076-S16634395682009101600000) .

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

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

PINPOINT TEST U: PINPOINT TEST U: 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.

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

Scheme 77

Scheme 78

1. U1 CHECK THE DLC PINS FOR DAMAGE Ignition OFF. Disconnect the scan tool cable from the Data Link Connector (DLC). Inspect DLC pins 3 and 11 for damage. Are DLC pins 3 and 11 OK? Yes: GO to U2 . No: REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
2. U2 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 U3 . No: GO to U5 .
3. U3 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: CONNECT the negative battery cable. GO to U4 . No: GO to U19 .
4. U4 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE 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. Is the voltage greater than 6 volts? Yes: REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool. No: The CAN has tested within specifications. GO to «PINPOINT TEST T»(ref-344076-S32264425202009101600000) to diagnose the intermittent MS-CAN fault.
5. U5 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 U6 . No: GO to U9 .
6. U6 CHECK THE MS-CAN TERMINATION RESISTOR WITH THE SJB DISCONNECTED Disconnect: Smart Junction Box (SJB) 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 U7 . No: GO to U8 .
7. U7 CHECK THE MS-CAN CIRCUITS BETWEEN THE SJB AND THE DLC FOR AN OPEN Measure the resistance between the SJB C2280b-37, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the SJB C2280b-38, 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 U27 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
8. U8 CHECK THE MS-CAN CIRCUITS BETWEEN THE IC AND THE DLC FOR AN OPEN Disconnect: IC C220. Measure the resistance between the IC C220-2, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side. Measure the resistance between the IC C220-1, 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 U34 . No: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
9. U9 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 U11 . No: GO to U10 .
10. U10 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS 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. CONNECT all modules. CONNECT the negative battery cable. 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.
11. U11 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE SJB DISCONNECTED Disconnect: SJB 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 less than 5 ohms? Yes: If the vehicle is equipped with a Satellite Digital Audio Receiver System (SDARS) module, GO to U12 . If the vehicle is not equipped with a SDARS module, GO to U13 . No: CONNECT the negative battery cable. GO to U27 .
12. U12 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE SDARS MODULE DISCONNECTED Disconnect: SDARS Module C3290. 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 U13 . No: CONNECT the negative battery cable. GO to U28 .
13. U13 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE FDIM DISCONNECTED Disconnect: FDIM C2123. 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: If the vehicle is equipped with a Front Controls Interface Module (FCIM), GO to U14 . If the vehicle is not equipped with an FCIM, GO to U15 . No: CONNECT the negative battery cable. GO to U29 .
14. U14 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE FCIM DISCONNECTED Disconnect: FCIM C2402. 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 U15 . No: CONNECT the negative battery cable. GO to U30 .
15. U15 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE ACM DISCONNECTED Disconnect: ACM 240b. 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: If the vehicle is equipped with an APIM, GO to U16 . If the vehicle is not equipped with an APIM, GO to U17 . No: CONNECT the negative battery cable. GO to U31 .
16. U16 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE APIM DISCONNECTED Disconnect: APIM C3338. 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 U17 . No: CONNECT the negative battery cable. GO to U32 .
17. U17 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE HVAC MODULE DISCONNECTED Disconnect: HVAC Module C2356a (DATC) or C2357a (EMTC). 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 U18 . No: CONNECT the negative battery cable. GO to U33 .
18. U18 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE IC DISCONNECTED Disconnect: IC C220. 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: REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool. No: CONNECT the negative battery cable. GO to U34 .
19. U19 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE SJB DISCONNECTED Disconnect: SJB C2280b. 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: CONNECT the negative battery cable. GO to U27 . No: If the vehicle is equipped with a Satellite Digital Audio Receiver System (SDARS) module, GO to U20 . If the vehicle is not equipped with a SDARS module, GO to U21 .
20. U20 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE SDARS MODULE DISCONNECTED Disconnect: SDARS Module C3290. 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: CONNECT the negative battery cable. GO to U28 . No: GO to U21 .
21. U21 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE FDIM DISCONNECTED Disconnect: FDIM C2123. 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: CONNECT the negative battery cable. GO to U29 . No: If the vehicle is equipped with a Front Controls Interface Module (FCIM), GO to U22 . If the vehicle is not equipped with an FCIM, GO to U23 .
22. U22 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE FCIM DISCONNECTED Disconnect: FCIM C2402. 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: CONNECT the negative battery cable. GO to U30 . No: GO to U23 .
23. U23 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE ACM DISCONNECTED Disconnect: ACM C240b. 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: CONNECT the negative battery cable. GO to U31 . No: If the vehicle is equipped with an APIM, GO to U24 . If the vehicle is not equipped with an APIM, GO to U25 .
24. U24 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE APIM DISCONNECTED Disconnect: APIM C3338. 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: CONNECT the negative battery cable. GO to U32 . No: GO to U25 .
25. U25 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE HVAC MODULE DISCONNECTED Disconnect: HVAC Module C2356a (DATC) or C2357a (EMTC). Measure the resistance between the DLC D251-3, 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: CONNECT the negative battery cable. GO to U33 . No: GO to U26 .
26. U26 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE IC DISCONNECTED Disconnect: IC C220. 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: CONNECT the negative battery cable. GO to U34 . No: REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
27. U27 CHECK FOR CORRECT SJB OPERATION Disconnect all the SJB connectors. Check for: corrosion damaged pins pushed-out pins Connect all the SJB connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
28. U28 CHECK FOR CORRECT SDARS MODULE OPERATION Disconnect the SDARS module connector. Check for: corrosion damaged pins pushed-out pins Connect the SDARS module connector and make it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SDARS module. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-344106) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
29. U29 CHECK FOR CORRECT FDIM OPERATION Disconnect the FDIM connector. Check for: corrosion damaged pins pushed-out pins Connect the FDIM 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 FDIM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-344106) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
30. U30 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-344106) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
31. U31 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 seat 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-344106) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
32. U32 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-344106) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
33. U33 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 seat 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-344137) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.
34. U34 CHECK FOR CORRECT IC OPERATION Disconnect the IC connector. Check for: corrosion damaged pins pushed-out pins Connect the IC 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 IC. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-344081) . CONNECT all modules. 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. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool.

Pinpoint Test V: No Power To The Scan Tool

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Module Communications Network for schematic and connector information.

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 will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 79

Scheme 80

Scheme 81

1. V1 CHECK DLC PINS FOR DAMAGE Disconnect the scan tool cable from the DLC. Inspect the DLC pins 4, 5 and 16 for damage. Are the DLC pins 4, 5 and 16 OK? Yes: GO to V2 . No: REPAIR the DLC as necessary. REPEAT the network test with the scan tool.
2. V2 CHECK THE DLC VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Measure the voltage between the DLC C251-16, circuit SBP20 (GN/RD), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to V3 . No: VERIFY the Smart Junction Box (SJB) fuse 20 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. REPEAT the network test with the scan tool.
3. V3 CHECK THE DLC GROUND CIRCUITS FOR AN OPEN Disconnect: Negative Battery Cable. Measure the resistance between the DLC C251-4, circuit GD112 (BK/GN), harness side and ground; and between the DLC C251-5, circuit GD114 (BK/BU), 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.