Module Communications Network System: Diagnosis Ford Freestyle I

Inspection and Verification

1. Verify the customer concern.
2. Visually inspect for obvious signs of electrical damage. VISUAL INSPECTION TABLE Electrical Smart junction box (SJB) fuse 9 (20A) Wiring harness Connections
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition switch position.
5. If the diagnostic tool still does not communicate with the vehicle, GO to «PINPOINT TEST O»(ref-255276-S37308405152007053000000) .
6. GO to «PINPOINT TEST PC»(ref-255276-S12907930052007053000000) .

Diagnostic Trouble Code (DTC) Index

DIAGNOSTIC TROUBLE CODE (DTC) INDEX

PINPOINT TEST PC: DATA LINK DIAGNOSTICS TEST

1. PC1 DATA LINK DIAGNOSTICS TEST Key in ON position. Carry out the data link diagnostics test. Is system passed obtained? Yes: The test passed. RETURN to the «SYMPTOM TABLE»(ref-255276-S41343295772007053000000) for the module in question. No: If international standards organization (ISO) 9141 communications network circuit fault; all electronic control units no response/not equipped, GO to «PINPOINT TEST L»(ref-255276-S15108795192007053000000) . If high speed controller area network (CAN) circuit faults; all electronic control units no response/not equipped, GO to «PINPOINT TEST M»(ref-255276-S09169032772007053000000) . If medium speed CAN circuit faults; all electronic control units no response/not equipped, GO to «PINPOINT TEST N»(ref-255276-S32643109462007053000000) . If no response from the diagnostic tool, GO to «PINPOINT TEST O»(ref-255276-S37308405152007053000000) . If the module in question is no response/not equipped, GO to «SYMPTOM TABLE»(ref-255276-S41343295772007053000000) .

Symptom Table

SYMPTOM TABLE

PINPOINT TEST A: THE DIFFERENTIAL ELECTRONIC MODULE (DEM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

1. A1 CHECK THE DEM C3269 FOR DAMAGE Key in OFF position. Disconnect: DEM C3269. Inspect the DEM )3269 for damage. Is the DEM C3269 OK? Yes: GO to A2 . No: REPAIR the DEM C3269 as necessary. CARRY OUT the data link diagnostics test.

Scheme 1

1. A2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE DEM FOR AN OPEN Measure the resistance between the DEM C3269-8, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the DEM C3269-7, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to A3 . No: REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
2. A3 CHECK FOR CORRECT DEM OPERATION Disconnect all the DEM connectors. Check for: corrosion pushed-out pins Connect all the DEM 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 DEM. REFER to «INSTALLATION»(ref-255274-S19954928302007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST B: THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Scheme 2

1. B1 CHECK THE ABS MODULE C135 FOR DAMAGE Key in OFF position. Disconnect: ABS Module C135. Inspect the ABS module for damage. Is the ABS module C135 OK? Yes: GO to B2 . No: REPAIR the ABS module C135 as necessary. CARRY OUT the data link diagnostics test.
2. B2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE ABS MODULE FOR AN OPEN Measure the resistance between the ABS module C135-26, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the ABS module C135-14, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to B3 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. B3 CHECK FOR CORRECT ABS MODULE OPERATION Disconnect all the ABS module connectors. Check for: corrosion pushed-out pins Connect all the ABS 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 ABS module. REFER to «REMOVAL AND INSTALLATION»(ref-255279-S39576351492007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST C: THE TRANSMISSION CONTROL MODULE (TCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL - CONTINUOUSLY VARIABLE TRANSAXLE (CVT)

Scheme 3

1. C1 CHECK THE TCM C199 FOR DAMAGE Key in OFF position. Disconnect: TCM C199. Inspect the TCM for damage. Is the TCM C199 OK? Yes: GO to C2 . No: REPAIR the TCM C199 as necessary. CARRY OUT the data link diagnostics test.
2. C2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE TCM FOR AN OPEN Measure the resistance between the TCM 3199-6, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the TCM C199-2, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to C3 . No: REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. C3 CHECK FOR CORRECT TCM OPERATION Disconnect all the TCM connectors. Check for: corrosion 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 «TRANSMISSION CONTROL MODULE (TCM)»(ref-255278-S40291874132007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST D: THE TRANSMISSION CONTROL MODULE (TCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL - 6-SPEED TRANSAXLE

Scheme 4

1. D1 CHECK THE TCM C168 FOR DAMAGE Key in OFF position. Disconnect: TCM C168. Inspect the TCM C168 for damage. Is the TCM C168 OK? Yes: GO to D2 . No: REPAIR the TCM C168 as necessary. CARRY OUT the data link diagnostics test.
2. D2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE TCM FOR AN OPEN Measure the resistance between the TCM C168-14, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the TCM C168-6, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to D3 . No: REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. D3 CHECK FOR CORRECT TCM OPERATION Disconnect all the TCM connectors. Check for: corrosion 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 «INSTALLATION»(ref-255262-S42415460872007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST E: THE INSTRUMENT CLUSTER DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

1. E1 CHECK THE INSTRUMENT CLUSTER C220 FOR DAMAGE Key in OFF position. Depower the air bag system. Refer to «DEPOWERING PROCEDURE»(ref-255291-S31595010382007053000000) . Disconnect: Instrument Cluster C220. Inspect the instrument cluster C220 for damage. Is the instrument cluster C220 OK? Yes: GO to E2 . No: REPAIR the instrument cluster C220 as necessary. CONNECT the instrument cluster C220. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CARRY OUT the data link diagnostics test.

Scheme 5

1. E2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE INSTRUMENT CLUSTER FOR AN OPEN Measure the resistance between the instrument cluster C220-18, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the instrument cluster C220-19, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to E3 . No : REPAIR the circuit in question. CONNECT the instrument cluster C220. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 6

1. E3 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DLC AND THE INSTRUMENT CLUSTER FOR AN OPEN Measure the resistance between the instrument cluster C220-20, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the instrument cluster C220-21, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to E4 . No: REPAIR the circuit in question. CONNECT the instrument cluster C220. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

1. E4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION Disconnect all the instrument cluster connectors. Check for: corrosion pushed-out pins Connect all the instrument cluster 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 instrument cluster. REFER to «REMOVAL AND INSTALLATION»(ref-255281-S12133199522007053000000) . REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST F: THE POWERTRAIN CONTROL MODULE (PCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Scheme 7

1. F1 CHECK THE PCM C175B FOR DAMAGE Key in OFF position. Disconnect: PCM C175b. Inspect the PCM C175b for damage. Is the PCM C175b OK? Yes: GO to F2 . No: REPAIR PCM C175b. CARRY OUT the data link diagnostics test.
2. F2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE PCM FOR AN OPEN Key in OFF position. Measure the resistance between the PCM C175b-11, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the PCM C175b-23, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to F3 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. F3 CHECK FOR CORRECT PCM OPERATION Disconnect all the PCM connectors. Check for: corrosion pushed-out pins Connect all the PCM 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 PCM. REFER to «INSTALLATION»(ref-255289-S06351952122007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST G: THE RESTRAINT CONTROL MODULE (RCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Scheme 8

1. G1 CHECK THE RCM C310b FOR DAMAGE Key in OFF position. Depower the air bag system. Refer to «DEPOWERING PROCEDURE»(ref-255291-S31595010382007053000000) . Disconnect: RCM C310b. Inspect the RCM C301b for damage. Is the RCM C310b OK? Yes: GO to G2 . No: REPAIR the RCM C310b as necessary. CONNECT the RCM C310b. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CARRY OUT the data link diagnostics test.
2. G2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE RCM FOR AN OPEN Key in OFF position. Measure the resistance between the RCM C310b-31, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the RCM C310b-32, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to G3 . No: REPAIR the circuit in question. CONNECT the RCM C310b. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. G3 CHECK FOR CORRECT RCM OPERATION Disconnect all the RCM connectors. Check for: corrosion pushed-out pins Connect all the RCM 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 RCM and REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST H: THE AUDIO/AUDIO NAVIGATION UNIT DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Scheme 9

1. H1 CHECK THE AUDIO/AUDIO NAVIGATION UNIT C240C FOR DAMAGE Key in OFF position. Disconnect: Audio/Audio Navigation Unit C240c. Inspect the audio/audio navigation unit C240c for damage. Is the audio unit C240c OK? Yes: GO to H2 . No: REPAIR the audio/audio navigation unit C240c as necessary. CARRY OUT the data link diagnostics test.
2. H2 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DLC AND THE AUDIO/AUDIO NAVIGATION UNIT FOR AN OPEN Key in OFF position. Measure the resistance between the audio/audio navigation unit C240C-15, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the audio/audio navigation unit C240c-16, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to H3 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. H3 CHECK FOR CORRECT AUDIO/AUDIO NAVIGATION UNIT OPERATION Disconnect all the audio/audio navigation unit connectors. Check for: corrosion pushed-out pins Connect all the audio/audio navigation unit 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 audio/audio navigation unit. REFER to «REMOVAL AND INSTALLATION»(ref-255310-S24390088262007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST I: THE DRIVER SEAT MODULE (DSM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Scheme 10

1. I1 CHECK THE DSM C341c FOR DAMAGE Key in OFF position. Disconnect: DSM C341c. Inspect the DSM C341c for damage. Is the DSM C341c OK? Yes: GO to I2 . No: REPAIR the DSM C341c as necessary. CARRY OUT the data link diagnostics test.
2. I2 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DLC AND THE DSM FOR AN OPEN Key in OFF position. Measure the resistance between the DSM C341c-11, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the DSM C341c-12, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to I3 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. I3 CHECK FOR CORRECT DSM OPERATION Disconnect all the DSM module connectors. Check for: corrosion pushed-out pins Connect all the DSM 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 DSM. REFER to «REMOVAL AND INSTALLATION»(ref-255282-S02664434752007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST J: THE DUAL AUTOMATIC TEMPERATURE CONTROL (DATC) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Scheme 11

1. J1 CHECK THE DATC MODULE C228a FOR DAMAGE Key in OFF position. Disconnect: DATC Module C228a. Inspect the DATC module C228a for damage. Is the DATC module C228a OK? Yes: GO to J2 . No: REPAIR the DATC module C228a as necessary. CARRY OUT the data link diagnostics test.
2. J2 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DLC AND THE DATC MODULE FOR AN OPEN Measure the resistance between the DATC module C228a-12, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the DATC module C228a-13, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to J3 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. J3 CHECK FOR CORRECT DATC MODULE OPERATION Disconnect all the DATC module connectors. Check for: corrosion pushed-out pins Connect all the DATC 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 DATC module. REFER to «ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE -- DIAGNOSTIC METHODS»(ref-255298-S33229038212007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST K: THE DIGITAL VERSATILE DISC (DVD) PLAYER DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Scheme 12

1. K1 CHECK THE DVD PLAYER C9029 FOR DAMAGE Key in OFF position. Disconnect: DVD Player C9029. Inspect the DVD player C9029 for damage. Is the DVD player C9029 OK? Yes: GO to K2 . No: REPAIR the DVD player C9029 as necessary. CARRY OUT the data link diagnostics test.
2. K2 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DLC AND THE DVD PLAYER FOR AN OPEN Measure the resistance between the DVD player C9029-10, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the DVD player C9029-20, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to K3 . No: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
3. K3 CHECK FOR CORRECT DVD PLAYER OPERATION Disconnect all the DVD player connectors. Check for: corrosion pushed-out pins Connect all the DVD player 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 DVD player. REFER to «REMOVAL AND INSTALLATION»(ref-255310-S28476574342007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST L: NO INTERNATIONAL STANDARDS ORGANIZATION (ISO) 9141 COMMUNICATIONS NETWORK COMMUNICATION

Scheme 13

Scheme 14

1. L1 CHECK THE DLC C251 FOR DAMAGE Key in OFF position. Inspect the DLC C251 for damage. Is the DLC C251 OK? Yes: GO to L2 . No: REPAIR the DLC C251 as necessary. CARRY OUT the data link diagnostics test.
2. L2 CHECK THE PAM C3267 FOR DAMAGE Disconnect: PAM C3267. Inspect the PAM C3267 for damage. Is the PAM C3267 OK? Yes: GO to L3 . No: REPAIR the PAM C3267 as necessary. CARRY OUT the data link diagnostics test.
3. L3 CHECK ISO 9141 CIRCUIT 70 (LB/WH) FOR AN OPEN OR A SHORT TO GROUND Measure the resistance between the PAM C3267-8, circuit 70 (LB/WH), harness side and the DLC C251-7, circuit 70 (LB/WH), harness side; and between the DLC C251-7, circuit 70 (LB/WH), harness side and ground. Is the resistance less than 5 ohms between the DLC and the PAM C3267, and greater than 10,000 ohms between the PAM C3267 and ground? Yes: GO to L4 . No: REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
4. L4 CHECK THE ISO 9141 COMMUNICATIONS NETWORK CIRCUIT 70 (LB/WH) FOR A SHORT TO VOLTAGE Measure the voltage between the DLC C251-7, circuit 70 (LB/WH), harness side and ground. Is any voltage present? Yes: GO to L5 . No: REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.
5. L5 CHECK FOR CORRECT PAM OPERATION Disconnect all the PAM connectors. Check for: corrosion pushed-out pins Connect all the PAM 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 PAM. REFER to «REMOVAL AND INSTALLATION»(ref-255316-S23318267132007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST M: NO HIGH SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION

1. M1 CHECK THE DLC C251 FOR DAMAGE Key in OFF position. Inspect the DLC C251 for damage. Is the DLC C251 OK? Yes: GO to M2 . No: REPAIR the DLC C251 as necessary. CARRY OUT the data link diagnostics test.

1. M2 CHECK ALL THE HIGH SPEED CAN MODULE CONNECTORS Disconnect: DEM C3269 (if equipped). Disconnect: ABS Module C135. Disconnect: TCM C168 - 6-Speed Transaxle (if equipped). Disconnect: TCM C199 - CVT (if equipped). Depower the air bag system. Refer to «DEPOWERING PROCEDURE»(ref-255291-S31595010382007053000000) . Disconnect: RCM C310b. Disconnect: PCM C175b. Disconnect: Instrument Cluster C220. Inspect the connectors for damage. Are the connectors OK? Yes: If equipped with all wheel drive (AWD), GO to M3 . If not equipped with AWD, GO to M4 . No: REPAIR the module connector in question as necessary. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CARRY OUT the data link diagnostics test.

Scheme 15

1. M3 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DEM AND THE DLC FOR AN OPEN Measure the resistance between the DEM C3269-8, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the DEM C3269-7, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to M4 . No: REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 16

1. M4 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE ABS MODULE AND THE DLC FOR AN OPEN Measure the resistance between the ABS module C135-26, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the ABS module C135-14, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: If equipped with a 6-speed transaxle, GO to M5 . If not equipped with a 6-speed transaxle, GO to M6 . No: REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 17

1. M5 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE TCM - 6-SPEED TRANSAXLE AND THE DLC FOR AN OPEN Measure the resistance between the TCM - 6-speed transaxle C168-14, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the TCM - 6-speed transaxle C168-6, circuit 1909 (BK), harness side and the DLC J251-1/1, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to M7 . No: REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 18

1. M6 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE TCM - CVT AND THE DLC FOR AN OPEN Measure the resistance between the TCM - CVT C199-6, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the TCM - CVT C199-2, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to M7 . No: REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 19

1. M7 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE INSTRUMENT CLUSTER AND THE DLC FOR AN OPEN Measure the resistance between the instrument cluster C220-18, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the instrument cluster C220-19, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to M8 . No: REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 20

1. M8 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN Measure the resistance between the PCM C175b-11, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the PCM C175b-23, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to M9 . No: REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 21

1. M9 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE RCM AND THE DLC FOR AN OPEN Measure the resistance between the RCM C310b-31, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the RCM C310b-32, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side. Are the resistances less than 5 ohms? Yes: GO to M10 . No: REPAIR the circuit in question. CONNECT the RCM C310b. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 22

1. M10 CHECK THE HIGH SPEED CAN CIRCUITS FOR A SHORT TO GROUND Measure the resistance between the DLC C251-6, circuit 1908 (WH), harness side and ground; and between the DLC C251-14, circuit 1909 (BK), harness side and ground. Are the resistances greater than 10,000 ohms? Yes : GO to M11 . No : REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 23

1. M11 CHECK THE HIGH SPEED CAN CIRCUITS FOR A SHORT TO VOLTAGE Key in ON position. Measure the voltage between the DLC C251-6, circuit 1908 (WH), harness side and ground; and between the DLC C251-14, circuit 1909 (BK), harness side and ground. Is any voltage indicated? Yes: REPAIR the circuit in question. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. No: GO to M12 .

1. M12 CHECK THE HIGH SPEED CAN CIRCUITS WITH THE ABS MODULE C135 DISCONNECTED Key in OFF position. Connect: DEM C3269 (if equipped). Connect: TCM - CVT C199 (if equipped). Connect: TCM - 6-Speed Transaxle C168 (if equipped). Repower the air bag system. Refer to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . Connect: Instrument Cluster C220. Connect: PCM C175b. Connect: RCM C310b. Refer to «INSTALLATION»(ref-255291-S21799503552007053000000) . Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to M19 . No: If equipped with AWD, GO to M13 . If not equipped with AWD and equipped with a TCM - CVT, GO to M14 . If not equipped with AWD and not equipped with a TCM - CVT, GO to M15 .

1. M13 CHECK THE HIGH SPEED CAN CIRCUITS WITH THE DEM C3269 DISCONNECTED Key in OFF position. Connect: ABS Module C135. Disconnect: DEM C3269. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to M18 . No: If equipped with a TCM - CVT, GO to M14 . If not equipped with a TCM - CVT, GO to M15 .

1. M14 CHECK THE HIGH SPEED CAN CIRCUITS WITH THE TCM - CVT C199 DISCONNECTED Key in OFF position. Connect: DEM C3269 (if equipped). Connect: ABS Module C135 (if disconnected). Disconnect: TCM - CVT C199. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to M20 . No: GO to M16 .

1. M15 CHECK THE HIGH SPEED CAN CIRCUITS WITH THE TCM - 6-SPEED TRANSAXLE C168 DISCONNECTED Key in OFF position. Connect: DEM C3269 (if equipped). Connect: ABS Module C135 (if disconnected). Disconnect: TCM - 6-Speed Transaxle C168. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to M21 . No: GO to M16 .

1. M16 CHECK THE HIGH SPEED CAN CIRCUITS WITH THE RCM C310b DISCONNECTED Key in OFF position. Connect: TCM - CVT C199 (if equipped). Connect: TCM - 6-Speed Transaxle C168 (if equipped). Depower the air bag system. Refer to «DEPOWERING PROCEDURE»(ref-255291-S31595010382007053000000) . Disconnect: RCM C310b. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to M24 . No: GO to M17 .

1. M17 CHECK THE HIGH SPEED CAN WITH A SUBSTITUTED PCM Key in OFF position. Connect: RCM C310b. Repower the air bag system. Refer to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . Install a known good PCM. Refer to «INSTALLATION»(ref-255289-S06351952122007053000000) . Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to M23 . No: INSTALL the original PCM. GO to M22 .

1. M18 CHECK FOR CORRECT DEM OPERATION Disconnect all the DEM connectors. Check for: corrosion push-out pins Connect all the DEM 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 DEM. REFER to «INSTALLATION»(ref-255274-S19954928302007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. M19 CHECK FOR CORRECT ABS MODULE OPERATION Disconnect all the ABS module connectors. Check for: corrosion push-out pins Connect all the ABS 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 ABS module. REFER to «REMOVAL AND INSTALLATION»(ref-255279-S39576351492007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. M20 CHECK FOR CORRECT TCM - CVT OPERATION Disconnect all the TCM - CVT connectors. Check for: corrosion push-out pins Connect all the TCM - CVT 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 - CVT. REFER to «TRANSMISSION CONTROL MODULE (TCM)»(ref-255278-S40291874132007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the diagnostic tool data link test. 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 self-test. CARRY OUT the diagnostic tool data link test.

1. M21 CHECK FOR CORRECT TCM - 6-SPEED TRANSAXLE OPERATION Disconnect all the TCM - 6-speed transaxle connectors. Check for: corrosion push-out pins Connect all the TCM - 6-speed transaxle 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 - 6-speed transaxle. REFER to «INSTALLATION»(ref-255262-S42415460872007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. M22 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION Disconnect all the instrument cluster connectors. Check for: corrosion push-out pins Connect all the instrument cluster 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 instrument cluster. REFER to «REMOVAL AND INSTALLATION»(ref-255281-S12133199522007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. M23 CHECK FOR CORRECT PCM OPERATION Disconnect all the PCM connectors. Check for: corrosion push-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 «INSTALLATION»(ref-255289-S06351952122007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. M24 CHECK FOR CORRECT RCM OPERATION Disconnect all the RCM connectors. Check for: corrosion push-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 and REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST N: NO MEDIUM SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION

1. N1 CHECK THE DLC C251 FOR DAMAGE Key in OFF position. Inspect the DLC C251 for damage. Is the DLC C251 OK? Yes: GO to N2 . No: REPAIR the DLC C251 as necessary. CARRY OUT the data link diagnostics test.

1. N2 CHECK ALL THE MEDIUM SPEED CAN MODULE CONNECTORS Disconnect: Audio/Audio Navigation Unit (if equipped) C240c. Disconnect: DSM C341c (if equipped). Disconnect: DATC Module C228a (if equipped). Disconnect: DVD Player C9029 (if equipped). Depower the air bag system. Refer to «DEPOWERING PROCEDURE»(ref-255291-S31595010382007053000000) . Disconnect: Instrument Cluster C220. Disconnect: SJB C2280c. Inspect the connectors for damage. Are the connectors OK? Yes: GO to N3 . No: REPAIR the module connector in question as necessary. REPOWER the air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CARRY OUT the data link diagnostics test.

Scheme 24

1. N3 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE AUDIO/AUDIO NAVIGATION UNIT AND THE DLC FOR AN OPEN Measure the resistance between the audio/audio navigation unit C240C-15, circuit 2180 (WH/BK), harness side and the DLC C251-15, circuit 2180 (WH/BK), harness side; and between the audio/audio navigation unit C240c-16, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: If equipped with memory seats, GO to N4 . If not equipped with memory seats and equipped with DATC, GO to N5 . If not equipped with memory seats, or DATC and equipped with a DVD player, GO to N6 . If not equipped with memory seats, DATC, or with a DVD player, GO to N7 . No: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 25

1. N4 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DSM AND THE DLC FOR AN OPEN Measure the resistance between the DSM C341c-11, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the DSM C341c-12, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: If equipped with DATC, GO to N5 . If not equipped with DATC and equipped with a DVD player, GO to N6 . If not equipped with DATC, or with a DVD player, GO to N7 . No: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 26

1. N5 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DATC MODULE AND THE DLC FOR AN OPEN Measure the resistance between the DATC module C228a-12, circuit 2180 (WH/BK), harness side and the DLC C228a-12, circuit 2180 (WH/BK), harness side; and between the DATC module C228a-13, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: If equipped with a DVD player, GO to N6 . If not equipped with a DVD player, GO to N7 . No: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 27

1. N6 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DVD PLAYER AND THE DLC FOR AN OPEN Measure the resistance between the DVD player C9029-10, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the DVD player C9029-20, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to N7 . No: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 28

1. N7 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE INSTRUMENT CLUSTER AND THE DLC FOR AN OPEN Measure the resistance between the instrument cluster C220-20, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the instrument cluster C220-21, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to N8 . No: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 29

1. N8 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE SJB AND THE DLC FOR AN OPEN Measure the resistance between the SJB C2280c-32, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the SJB C2280c-16, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side. Are the resistances less than 5 ohms? Yes: GO to N9 . No: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 30

1. N9 CHECK THE MEDIUM SPEED CAN CIRCUITS FOR A SHORT TO GROUND Measure the resistance between the DLC C251-3, circuit 2180 (WH/BK), harness side and ground; and between the DLC C251-11, circuit 2181 (BK/YE), harness side and ground. Are the resistances greater than 10,000 ohms? Yes: GO to N10 . No: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.

Scheme 31

1. N10 CHECK THE MEDIUM SPEED CAN CIRCUITS FOR A SHORT TO VOLTAGE Key in ON position. Measure the voltage between the DLC C251-3, circuit 2180 (WH/BK), harness side and ground; and between the DLC C251-11, circuit 2181 (BK/YE), harness side and ground. Is any voltage indicated? Yes: REPAIR the circuit in question. REPOWER The air bag system. REFER to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. No: GO to N11 .

1. N11 CHECK THE MEDIUM SPEED CAN CIRCUITS WITH THE AUDIO/AUDIO NAVIGATION UNIT C240C DISCONNECTED Key in OFF position. Connect: DSM C341c (if equipped). Connect: DATC Module C228a (if equipped). Connect: DVD Player C9029 (if equipped). Repower the air bag system. Refer to «REPOWERING PROCEDURE»(ref-255291-S02360947812007053000000) . Connect: Instrument Cluster C220. Connect: SJB C2280c. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to N16 . No: If equipped with memory seats, GO to N12 . If not equipped with memory seats and equipped with DATC, GO to N13 . If not equipped with memory seats, or DATC, and equipped with a DVD player, GO to N14 . If not equipped with memory seats, DATC, or with a DVD player, GO to N15 .

1. N12 CHECK THE MEDIUM SPEED CAN CIRCUITS WITH THE DSM MODULE C341c DISCONNECTED Key in OFF position. Connect: Audio/Audio Navigation Unit C240c. Disconnect: DSM C341c. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to N17 . No: If equipped with DATC, GO to N13 . If not equipped with DATC and equipped with a DVD player, GO to N14 . If not equipped with DATC or with a DVD player, GO to N15 .

1. N13 CHECK THE MEDIUM SPEED CAN CIRCUITS WITH THE DATC MODULE C228a DISCONNECTED Key in OFF position. Connect: Audio/Audio Navigation Unit C240c (if disconnected). Connect: DSM C341c (if equipped). Disconnect: DATC Module C228a. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to N18 . No: If equipped with a DVD player, GO to N14 . If not equipped with a DVD player, GO to N15 .

1. N14 CHECK THE MEDIUM SPEED CAN CIRCUITS WITH THE DVD PLAYER C9029 DISCONNECTED Key in OFF position. Connect: Audio/Audio Navigation Unit C240c (if disconnected). Connect: DSM C341c (if disconnected). Connect: DATC Module C228a (if equipped). Disconnect: DVD Player C9029. Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to N19 . No: GO to N15 .

1. N15 CHECK THE MEDIUM SPEED CAN WITH A SUBSTITUTED SJB Key in OFF position. Connect: Audio/Audio Navigation Unit C240c (if disconnected). Connect: DVD Player C9029 (if disconnected). Connect: DSM C341c (if disconnected). Connect: DATC Module C228a (if disconnected). Install a known good SJB. Refer to «REMOVAL AND INSTALLATION»(ref-255282-S31049785852007053000000) . Key in ON position. Enter the following diagnostic mode on the scan tool: Data Link Diagnostics Test. Is system passed obtained? Yes: GO to N21 . No: INSTALL the original SJB. GO to N20 .

1. N16 CHECK FOR CORRECT AUDIO/AUDIO NAVIGATION UNIT OPERATION Disconnect all the audio/audio navigation unit connectors. Check for: corrosion push-out pins Connect all the audio/audio navigation unit 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 audio/audio navigation unit. REFER to «REMOVAL AND INSTALLATION»(ref-255310-S24390088262007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. N17 CHECK FOR CORRECT DSM OPERATION Disconnect all the DSM connectors. Check for: corrosion push-out pins Connect all the DSM 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 DSM. REFER to «REMOVAL AND INSTALLATION»(ref-255282-S02664434752007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. N18 CHECK FOR CORRECT DATC MODULE OPERATION Disconnect all the DATC module connectors. Check for: corrosion push-out pins Connect all the DATC 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 DATC module. REFER to «ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE AND ELECTRONIC MANUAL TEMPERATURE CONTROL (EMTC) MODULE COLD BOOT PROCESS»(ref-255298-S41511659792007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. N19 CHECK FOR CORRECT DVD PLAYER OPERATION Disconnect all the DVD player connectors. Check for: corrosion push-out pins Connect all the DVD player 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 DVD player. REFER to «REMOVAL AND INSTALLATION»(ref-255310-S28476574342007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. N20 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION Disconnect all the instrument cluster connectors. Check for: corrosion push-out pins Connect all the instrument cluster 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 instrument cluster. REFER to «REMOVAL AND INSTALLATION»(ref-255281-S12133199522007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

1. N21 CHECK FOR CORRECT SJB OPERATION Disconnect all the SJB connectors. Check for: corrosion push-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 «REMOVAL AND INSTALLATION»(ref-255282-S31049785852007053000000) . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test. 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 self-test. CARRY OUT the data link diagnostics test.

PINPOINT TEST O: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL

1. O1 CHECK THE DIAGNOSTIC TOOL CONNECTOR Inspect the diagnostic tool pins for damage. Are the pins OK? Yes: GO to O2 . No: REPAIR the diagnostic tool connector as necessary. CARRY OUT the data link diagnostics test.

1. O2 CHECK THE DLC C251 FOR DAMAGE Inspect the DLC C251 pins for damage. Are the pins OK? Yes: GO to O3 . No: REPAIR the DLC C251 as necessary. CARRY OUT the data link diagnostics test.

Scheme 32

1. O3 CHECK THE VOLTAGE TO THE DIAGNOSTIC TOOL CIRCUIT 40 (LB/WH) Key in ON position. Measure the voltage between the DLC C251-16, circuit 40 (LB/WH), harness side and ground. Is the voltage greater than 10 volts? Yes: GO to O4 . No: VERIFY the smart junction box (SJB) fuse 9 (20A) is OK. If OK, REPAIR the circuit. CARRY OUT the diagnostic tool data link test.

Scheme 33

1. O4 CHECK THE DLC GROUND CIRCUITS 1203 (BK/LB) AND 1205 (BK) Key in OFF position. Measure the resistance between the DLC C251-4, circuit 1205 (BK), harness side and ground; and between the DLC C251-5, circuit 1203 (BK/LB), harness side and ground. Are the resistances less than 5 ohms? Yes: REPAIR the diagnostic tool. CARRY OUT the data link diagnostics test. No: REPAIR the circuit in question. CARRY OUT the data link diagnostics test.