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Module Communications Network: Diagnosis Lincoln LS I

Communication Devices 19 illustrations ~12775 words

SELF-DIAGNOSTIC SYSTEM

Note. Test procedures are written specifically for New Generation Star (NGS) tester. Generic scan tools may not have the capability of performing all the same functions. Refer to scan tool manufacturer's instructions.

INSPECTION & VERIFICATION

  1. Verify customer's original problem by operating system in question. Inspect vehicle for any obvious electrical component wiring or connector damage. Inspect harness connectors for loose, damaged or corroded terminals. Check fuses No. 206 (10-amp) and No. 232 (20-amp) in central junction box and related fuses for system in question.
  2. Inspect 16-pin Data Link Connector (DLC) pins for damage. (Scheme 1) DLC is located below driver's side of instrument panel, to right of steering column. If pins are okay, go to next step. If pins are damaged, repair as necessary and proceed to next step.
  3. If problem is still present after performing inspection, connect New Generation Star (NGS) tester to DLC. Select vehicle to be tested from NGS tester menu. If NGS tester does not communicate with vehicle, ensure program card is properly installed. Check NGS tester cable connections and ensure ignition switch is in RUN position. If NGS tester still does not communicate with vehicle, go to «TEST O: NO MODULE/NETWORK COMMUNICATION - NO POWER TO NGS TESTER»(ref-2592-S27489681422000040700000) under SYSTEM TESTS. If NGS tester communicates with vehicle, perform data link diagnostic procedure. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000).

Scheme 1

Scheme 1
Scheme 1

DATA LINK DIAGNOSTIC TEST

Note. International Standards Organization (ISO) 9141 diagnostic communications network circuit is the Gray/Black wire connected to terminal No. 7 on DLC. BUS (+) circuit is the Gray/Red wire connected to terminal No. 2 on DLC. BUS (-) circuit is the Blue/Red wire connected to terminal No. 10 on DLC.

Note. Remote Emergency Satellite Cellular Unit (RESCU) module, Driver's Seat Module (DSM) and Steering Column Lock Module (SCLM) will fail data link diagnostic test if vehicle is not equipped with that module(s). Vehicles with voice activated cellular phone are equipped with a RESCU module. Vehicles with memory seats are equipped with a DSM. Vehicles with a manual transmission are equipped with a SCLM. SCLM will not communicate until SCL actuator is activated. To activate SCL actuator, remove key from ignition and open driver's door. SCL activator will remain activated for 30 minutes.

  1. Connect New Generation Star (NGS) tester to Data Link Connector (DLC), if not already connected. Select vehicle to be tested from NGS tester menu.
  2. Turn ignition switch to RUN position. Rotate dial on NGS tester to menu item DIAGNOSTIC DATA LINK and press trigger. A test will be performed on the BUS network and the ISO 9141 network.
  3. If NGS tester displays CKT 914 (+) = SYSTEM PASSED and CKT 915 (-) = SYSTEM PASSED, module communications network is okay. If NGS tester displays CKT 70 = SYSTEM PASSED, ISO 9141 communication link is operating properly. Repair communication concern by symptom. See «SYMPTOM INDEX»(ref-2592-S36143048312000040700000) table to continue diagnosis.
  4. If NGS tester does not display CKT 914 (+) = SYSTEM PASSED, CKT 915 (-) = SYSTEM PASSED and CKT 70 = SYSTEM PASSED, perform the following as applicable: If no response from NGS tester, perform «TEST O: NO MODULE/NETWORK COMMUNICATION - NO POWER TO NGS TESTER»(ref-2592-S27489681422000040700000) under SYSTEM TESTS. If NGS tester displays CKT 70, CKT 914 and/or CKT 915 = SOME ECUS NO RESP/NOT EQUIP, repair communication concern by symptom. See «SYMPTOM INDEX»(ref-2592-S36143048312000040700000) table to continue diagnosis. If NGS tester displays CKT 70 = ALL ECUS NO RESP/NOT EQUIP, perform «TEST C: RESTRAINT CONTROL MODULE (RCM) DOES NOT RESPOND TO NGS TESTER»(ref-2592-S24989196652000040700000) under SYSTEM TESTS. If NGS tester displays CKT 914 = ALL ECUS NO RESP/NOT EQUIP, perform «TEST N: NO MODULE/NETWORK COMMUNICATION - SCP BUS LINK»(ref-2592-S11251867292000040700000) under SYSTEM TESTS. If NGS tester displays CKT 915 = ALL ECUS NO RESP/NOT EQUIP, perform «TEST N: NO MODULE/NETWORK COMMUNICATION - SCP BUS LINK»(ref-2592-S11251867292000040700000) under SYSTEM TESTS. If module in question is NO RESPONSE/NOT EQUIPPED, repair communication concern by symptom. See «SYMPTOM INDEX»(ref-2592-S36143048312000040700000) table to continue diagnosis. If module in question is NO RESPONSE ON CKT 914 (BUS +), repair communication concern by symptom. See «SYMPTOM INDEX»(ref-2592-S36143048312000040700000) table to continue diagnosis. If module in question is NO RESPONSE ON CKT 915 (BUS -), repair communication concern by symptom. See «SYMPTOM INDEX»(ref-2592-S36143048312000040700000) table to continue diagnosis.
SymptomPerform Test
Anti-Lock Brake System (ABS) Module Does Not Respond To NGS Tester (1)A
Front Electronic Module (FEM) Does Not Respond To NGS TesterB
Restraint Control Module (RCM) Does Not Respond To NGS TesterC
Instrument Cluster Does Not Respond To NGS TesterD
Powertrain Control Module (PCM) Does Not Respond To NGS TesterE
Dual Automatic Temperature Control (DATC) Module Does Not Respond To NGS TesterF
Audio Control Module (ACM) Does Not Respond To NGS TesterG
Steering Column Lock Module (SCLM) Does Not Respond To NGS Tester (M/T Only) (2)H
Remote Emergency Satellite Cellular Unit (RESCU) Module Does Not Respond To NGS Tester (3)I
Driver's Seat Module (DSM) Does Not Respond To NGS Tester (4)J
Driver's Door Module (DDM) Does Not Respond To NGS TesterK
Rear Electronic Module (REM) Does Not Respond To NGS TesterL
No Module/Network Communication - ISO 9141 NetworkM
No Module/Network Communication - SCP Bus LinkN
No Module/Network Communication - No Power To NGS TesterO
(1) Anti-Lock Brake System (ABS) control module may be referred to as a Stability Assist Module (SAM) if vehicle is equipped with traction control and stability assist. (2) Steering Column Lock Module (SCLM) will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with a manual transmission are equipped with a SCLM. (3) Remote Emergency Satellite Cellular Unit (RESCU) module will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with voice activated cellular phone are equipped with a RESCU module. (4) Driver's Seat Module (DSM) will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with memory seats are equipped with a DSM.
(1)Anti-Lock Brake System (ABS) control module may be referred to as a Stability Assist Module (SAM) if vehicle is equipped with traction control and stability assist.
(2)Steering Column Lock Module (SCLM) will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with a manual transmission are equipped with a SCLM.
(3)Remote Emergency Satellite Cellular Unit (RESCU) module will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with voice activated cellular phone are equipped with a RESCU module.
(4)Driver's Seat Module (DSM) will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with memory seats are equipped with a DSM.

SYMPTOM INDEX

RETRIEVING & CLEARING DIAGNOSTIC TROUBLE CODES

Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Following manufacturers instructions to retrieve and clear codes for desired module. See appropriate table under DIAGNOSTIC TROUBLE CODE DEFINITIONS for a listing of Diagnostic Trouble Codes (DTCs) and appropriate test procedure.

TEST A: ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DOES NOT RESPOND TO NGS TESTER

Note. Anti-Lock Brake System (ABS) control module may be referred to as a Stability Assist Module (SAM) if vehicle is equipped with traction control and stability assist.

  1. Turn ignition switch to LOCK position. Disconnect ABS module harness connector, located in right front of engine compartment. Disconnect NGS tester (if connected). Inspect ABS module harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect ABS module harness connector and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates ABS: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates ABS: NO RESPONSE ON CKT 915 (BUS -), go to step 9.
  3. Turn ignition switch to LOCK position. Disconnect ABS module harness connector. Disconnect NGS tester. On vehicle without stability assist, measure resistance between terminal No. 11 (Gray wire) at ABS module harness connector and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 2). On vehicles with stability assist, measure resistance between terminal No. 17 (Gray wire) at ABS module harness connector and terminal No. 2 (Gray/Red wire) at DLC. On all vehicles, resistance should be 5 ohms or less. If resistance is not as specified, go to next step. If resistance is as specified, replace ABS module and retest system for normal operation.
  4. Disconnect Auxiliary Junction Box (AJB) harness connector C283c, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  5. On vehicle without stability assist, measure resistance in Gray wire between terminal No. 5 at AJB harness connector C283c and terminal No. 11 at ABS module harness connector. (Scheme 2)and (Scheme 3). On vehicle with stability assist, measure resistance in Gray wire between terminal No. 5 at AJB harness connector C283c and terminal No. 17 at ABS module harness connector. On all vehicles, resistance should be 5 ohms or less. If resistance is as specified, go to next step. If resistance is not as specified, repair open in Gray wire between AJB and ABS module. Retest system for normal operation.
  6. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 5 at AJB connector C283c and terminal No. 16 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray wire between terminal No. 12 at joint connector No. 4 harness connector C223 and terminal No. 16 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and joint connector No. 4. Retest system for normal operation.
  8. Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  9. Turn ignition switch to LOCK position. Disconnect ABS module harness connector. Disconnect NGS tester. On vehicle without stability assist, measure resistance between terminal No. 10 (Blue wire) at ABS module harness connector and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 2). On vehicle with stability assist, measure resistance between terminal No. 19 (Blue wire) at ABS module harness connector and terminal No. 10 (Blue/Red wire) at DLC. On all vehicles, resistance should be 5 ohms or less. If resistance is not as specified, go to next step. If resistance is as specified, replace ABS module and retest system for normal operation.
  10. Disconnect Auxiliary Junction Box (AJB) harness connector C283c, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  11. On vehicle without stability assist, measure resistance in Blue wire between terminal No. 6 at AJB harness connector C283c and terminal No. 10 at ABS module harness connector. (Scheme 2)and (Scheme 3). On vehicle with stability assist, measure resistance in Blue wire between terminal No. 6 at AJB harness connector C283c and terminal No. 19 at ABS module harness connector. On all vehicles, resistance should be 5 ohms or less. If resistance is as specified, go to next step. If resistance is not as specified, repair open in Blue wire between AJB and ABS module. Retest system for normal operation.
  12. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 6 at AJB connector C283c and terminal No. 12 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  13. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue wire between terminal No. 11 at joint connector No. 4 harness connector C223 and terminal No. 12 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and joint connector No. 4. Retest system for normal operation.
  14. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 2

Scheme 2
Scheme 2

Scheme 3

Scheme 3
Scheme 3

Scheme 4

Scheme 4
Scheme 4

Scheme 5

Scheme 5
Scheme 5

Scheme 6

Scheme 6
Scheme 6

TEST B: FRONT ELECTRONIC MODULE (FEM) DOES NOT RESPOND TO NGS TESTER

  1. Turn ignition switch to LOCK position. Disconnect FEM harness connector C201c, located behind driver's side kick panel. Disconnect NGS tester (if connected). Inspect FEM harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect FEM harness connector C201c and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates FEM: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates FEM: NO RESPONSE ON CKT 915 (BUS -), go to step 9.
  3. Turn ignition switch to LOCK position. Disconnect FEM harness connector C201c. Disconnect NGS tester. Measure resistance between terminal No. 7 (Gray wire) at FEM harness connector C201c and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 7). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace FEM and retest system for normal operation.
  4. Disconnect Auxiliary Junction Box (AJB) harness connector C283c, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  5. Measure resistance in Gray wire between terminal No. 10 at AJB harness connector C283c and terminal No. 7 at FEM harness connector C201c. (Scheme 3)and (Scheme 7). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and FEM. Retest system for normal operation.
  6. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 10 at AJB connector C283c and terminal No. 16 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray wire between terminal No. 12 at joint connector No. 4 harness connector C223 and terminal No. 16 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and joint connector No. 4. Retest system for normal operation.
  8. Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  9. Turn ignition switch to LOCK position. Disconnect FEM harness connector C201c. Disconnect NGS tester. Measure resistance between terminal No. 1 (Blue wire) at FEM harness connector C201c and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 7). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace FEM and retest system for normal operation.
  10. Disconnect Auxiliary Junction Box (AJB) harness connector C283c, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  11. Measure resistance in Blue wire between terminal No. 8 at AJB harness connector C283c and terminal No. 1 at FEM harness connector C201c. (Scheme 3)and (Scheme 7). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and FEM. Retest system for normal operation.
  12. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 8 at AJB connector C283c and terminal No. 12 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  13. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue wire between terminal No. 11 at joint connector No. 4 harness connector C223 and terminal No. 12 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and joint connector No. 4. Retest system for normal operation.
  14. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 7

Scheme 7
Scheme 7

TEST C: RESTRAINT CONTROL MODULE (RCM) DOES NOT RESPOND TO NGS TESTER

  1. Turn ignition switch to LOCK position. Deactivate air bag system. See appropriate AIR BAG RESTRAINT SYSTEMS article. Disconnect RCM harness connector C310a, located under center console. Disconnect NGS tester (if connected). Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Measure resistance between terminal No. 7 (Gray wire) at RCM harness connector C310a and terminal No. 7 (Gray/Black wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 8). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, perform «TEST M: NO MODULE/NETWORK COMMUNICATION - ISO 9141 LINK»(ref-2592-S17631544982000040700000).
  3. Disconnect in-line harness connector C212, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  4. Measure resistance in Gray/Black wire between terminal No. 8 at male side of in-line harness connector C212 and terminal No. 7 at DLC. (Scheme 1)and (Scheme 9). If resistance is 5 ohms or less, repair open in wiring between in-line harness connector C212 and RCM. Retest system for normal operation. If resistance is greater than 5 ohms, repair open in Gray/Black wire between DLC and in-line harness connector C212. Retest system for normal operation.

Scheme 8

Scheme 8
Scheme 8

Scheme 9

Scheme 9
Scheme 9

TEST D: INSTRUMENT CLUSTER DOES NOT RESPOND TO NGS TESTER

  1. Turn ignition switch to LOCK position. Disconnect instrument cluster 20-pin harness connector C220b. Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect instrument cluster harness connector C220b and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates ICM: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates ICM: NO RESPONSE ON CKT 915 (BUS -), go to step 6.
  3. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect instrument cluster harness connector C220b. Measure resistance between terminal No. 15 (Gray/Violet wire) at instrument cluster harness connector C220b and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 10). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace instrument cluster and retest system for normal operation.
  4. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray/Violet wire between terminal No. 13 at joint connector No. 4 harness connector C223 and terminal No. 15 at instrument cluster harness connector C220b. (Scheme 5)and (Scheme 10). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray/Violet wire between joint connector No. 4 and instrument cluster. Retest system for normal operation.
  5. Measure resistance between terminals No. 13 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  6. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect instrument cluster harness connector C220b. Measure resistance between terminal No. 16 (Blue/White wire) at instrument cluster harness connector C220b and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 10). If resistance is 5 ohms or less, replace instrument cluster and retest system for normal operation. If resistance is greater than 5 ohms, go to next step.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue/White wire between terminal No. 10 at joint connector No. 4 harness connector C223 and terminal No. 16 at instrument cluster harness connector C220b. (Scheme 5)and (Scheme 10). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue/White wire between joint connector No. 4 and instrument cluster. Retest system for normal operation.
  8. Measure resistance between terminals No. 9 and 10 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 10

Scheme 10
Scheme 10

TEST E: POWERTRAIN CONTROL MODULE (PCM) DOES NOT RESPOND TO NGS TESTER

Note. If test results indicate PCM is faulty, always check for any engine performance related DTC prior to replacing PCM. If any DTCs are present, service DTCs as necessary and retest. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

  1. Turn ignition switch to LOCK position. Disconnect PCM harness connector C175a, located in right rear corner of engine compartment. Disconnect NGS tester (if connected). Inspect PCM harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect PCM harness connector and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates PCM: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates PCM: NO RESPONSE ON CKT 915 (BUS -), go to step 9.
  3. Turn ignition switch to LOCK position. Disconnect PCM harness connector C175a. Disconnect NGS tester. Measure resistance between terminal No. 3 (Gray wire) at PCM harness connector C175a and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 11). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace PCM and retest system for normal operation.
  4. Disconnect Auxiliary Junction Box (AJB) harness connector C283c, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  5. Measure resistance in Gray wire between terminal No. 4 at AJB harness connector C283c and terminal No. 3 at PCM harness connector C201c. (Scheme 3)and (Scheme 11). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and PCM. Retest system for normal operation.
  6. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 4 at AJB connector C283c and terminal No. 16 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray wire between terminal No. 12 at joint connector No. 4 harness connector C223 and terminal No. 16 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and joint connector No. 4. Retest system for normal operation.
  8. Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  9. Turn ignition switch to LOCK position. Disconnect PCM harness connector C175a. Disconnect NGS tester. Measure resistance between terminal No. 4 (Blue wire) at PCM harness connector C175a and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 11). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace PCM and retest system for normal operation.
  10. Disconnect Auxiliary Junction Box (AJB) harness connector C283c, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  11. Measure resistance in Blue wire between terminal No. 1 at AJB harness connector C283c and terminal No. 4 at PCM harness connector C175a. (Scheme 3)and (Scheme 11). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and PCM. Retest system for normal operation.
  12. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 1 at AJB connector C283c and terminal No. 12 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  13. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue wire between terminal No. 11 at joint connector No. 4 harness connector C223 and terminal No. 12 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and joint connector No. 4. Retest system for normal operation.
  14. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 11

Scheme 11
Scheme 11

TEST F: DUAL AUTOMATIC TEMPERATURE CONTROL (DATC) MODULE DOES NOT RESPOND TO NGS TESTER

  1. Turn ignition switch to LOCK position. Disconnect DATC module harness connector C228a. Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect DATC module harness connector C228a and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates DATC: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates DATC: NO RESPONSE ON CKT 915 (BUS -), go to step 6.
  3. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect DATC module harness connector C228a. Measure resistance between terminal No. 12 (Gray/Black wire) at DATC module harness connector C228a and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 12). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace DATC module and retest system for normal operation.
  4. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray/Black wire between terminal No. 15 at joint connector No. 4 harness connector C223 and terminal No. 12 at DATC module harness connector C228a. (Scheme 5)and (Scheme 12). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray/Black wire between joint connector No. 4 and DATC module. Retest system for normal operation.
  5. Measure resistance between terminals No. 14 and 15 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  6. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect DATC module harness connector C228a. Measure resistance between terminal No. 1 (Blue/Yellow wire) at DATC module harness connector C228a and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 12). If resistance is 5 ohms or less, replace DATC module and retest system for normal operation. If resistance is greater than 5 ohms, go to next step.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue/Yellow wire between terminal No. 8 at joint connector No. 4 harness connector C223 and terminal No. 1 at DATC module harness connector C228a. (Scheme 5)and (Scheme 12). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue/Yellow wire between joint connector No. 4 and DATC module. Retest system for normal operation.
  8. Measure resistance between terminals No. 8 and 9 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 12

Scheme 12
Scheme 12

TEST G: AUDIO CONTROL MODULE (ACM) DOES NOT RESPOND TO NGS TESTER

  1. Turn ignition switch to LOCK position. Disconnect ACM harness connector C240a. Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect ACM harness connector C240a and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates ACM: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates ACM: NO RESPONSE ON CKT 915 (BUS -), go to step 6.
  3. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect ACM harness connector C240a. Measure resistance between terminal No. 3 (Gray/Black wire) at ACM harness connector C240a and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 13). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace ACM and retest system for normal operation.
  4. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray/Black wire between terminal No. 16 at joint connector No. 4 harness connector C223 and terminal No. 3 at ACM harness connector C240a. (Scheme 5)and (Scheme 13). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray/Black wire between joint connector No. 4 and ACM. Retest system for normal operation.
  5. Measure resistance between terminals No. 14 and 16 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  6. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect ACM harness connector C240a. Measure resistance between terminal No. 4 (Blue/Yellow wire) at ACM harness connector C240a and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 13). If resistance is 5 ohms or less, replace ACM and retest system for normal operation. If resistance is greater than 5 ohms, go to next step.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue/Yellow wire between terminal No. 7 at joint connector No. 4 harness connector C223 and terminal No. 4 at ACM harness connector C240a. (Scheme 5)and (Scheme 13). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue/Yellow wire between joint connector No. 4 and ACM. Retest system for normal operation.
  8. Measure resistance between terminals No. 7 and 9 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 13

Scheme 13
Scheme 13

TEST H: STEERING COLUMN LOCK MODULE (SCLM) DOES NOT RESPOND TO NGS TESTER (M/T ONLY)

Note. Steering Column Lock Module (SCLM) will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with a manual transmission are equipped with a SCLM. SCLM will not communicate until SCL actuator is activated. To activate SCL actuator, remove key from ignition and open driver's door. SCL activator will remain activated for 30 minutes.

Note. Steering Column Lock Module (SCLM) may also be referred to as a Steering Column Lock Unit (SCLU) or steering column lock.

  1. Turn ignition switch to LOCK position. Disconnect SCLM harness connector C267. Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect SCLM harness connector C267 and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates SCLU: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates SCLU: NO RESPONSE ON CKT 915 (BUS -), go to step 6.
  3. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect SCLM harness connector C267. Measure resistance between terminal No. 4 (Gray/Orange wire) at SCLM harness connector C267 and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 14). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace SCLM and retest system for normal operation.
  4. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray/Orange wire between terminal No. 17 at joint connector No. 4 harness connector C223 and terminal No. 4 at SCLM harness connector C267. (Scheme 5)and (Scheme 14). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray/Orange wire between joint connector No. 4 and SCLM. Retest system for normal operation.
  5. Measure resistance between terminals No. 14 and 17 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  6. Turn ignition switch to LOCK position. Disconnect NGS tester. Disconnect SCLM harness connector C267. Measure resistance between terminal No. 3 (Blue/Black wire) at SCLM harness connector C267 and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 14). If resistance is 5 ohms or less, replace SCLM and retest system for normal operation. If resistance is greater than 5 ohms, go to next step.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue/Black wire between terminal No. 6 at joint connector No. 4 harness connector C223 and terminal No. 3 at SCLM harness connector C267. (Scheme 5)and (Scheme 14). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue/Black wire between joint connector No. 4 and SCLM. Retest system for normal operation.
  8. Measure resistance between terminals No. 6 and 9 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 14

Scheme 14
Scheme 14

TEST I: REMOTE EMERGENCY SATELLITE CELLULAR UNIT (RESCU) MODULE DOES NOT RESPOND TO NGS TESTER

Note. Remote Emergency Satellite Cellular Unit (RESCU) module will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with voice activated cellular phone are equipped with a RESCU module.

  1. Turn ignition switch to LOCK position. Disconnect RESCU module harness connector C401a, located in left side of trunk compartment. Disconnect NGS tester (if connected). Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect RESCU module harness connector C401a and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates RESCU: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates RESCU: NO RESPONSE ON CKT 915 (BUS -), go to step 9.
  3. Turn ignition switch to LOCK position. Disconnect RESCU module harness connector C401a. Disconnect NGS tester. Measure resistance between terminal No. 11 (Gray/Black wire) at RESCU module harness connector C401a and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 15). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace RESCU module and retest system for normal operation.
  4. Disconnect Auxiliary Junction Box (AJB) harness connector C283b, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  5. Measure resistance in Gray/Black wire between terminal No. 8 at AJB harness connector C283b and terminal No. 11 at RESCU module harness connector C401a. (Scheme 3)and (Scheme 15). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray/Black wire between AJB and RESCU module. Retest system for normal operation.
  6. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 8 at AJB connector C283b and terminal No. 16 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray wire between terminal No. 12 at joint connector No. 4 harness connector C223 and terminal No. 16 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and joint connector No. 4. Retest system for normal operation.
  8. Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  9. Turn ignition switch to LOCK position. Disconnect RESCU module harness connector C401a. Disconnect NGS tester. Measure resistance between terminal No. 5 (Blue/Yellow wire) at RESCU module harness connector C401a and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 15). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace RESCU module and retest system for normal operation.
  10. Disconnect Auxiliary Junction Box (AJB) harness connector C283b, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  11. Measure resistance in Blue/Yellow wire between terminal No. 4 at AJB harness connector C283b and terminal No. 5 at RESCU module harness connector C401a. (Scheme 3)and (Scheme 15). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue/Yellow wire between AJB and RESCU module. Retest system for normal operation.
  12. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 4 at AJB connector C283b and terminal No. 12 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  13. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue wire between terminal No. 11 at joint connector No. 4 harness connector C223 and terminal No. 12 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and joint connector No. 4. Retest system for normal operation.
  14. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 15

Scheme 15
Scheme 15

TEST J: DRIVER'S SEAT MODULE (DSM) DOES NOT RESPOND TO NGS TESTER

Note. Driver's Seat Module (DSM) will fail data link diagnostic test if vehicle is not equipped with this module. Vehicles with memory seats are equipped with a DSM.

  1. Turn ignition switch to LOCK position. Disconnect DSM harness connector C341c, located under driver's seat. Disconnect NGS tester (if connected). Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect DSM harness connector C401a and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates DSM: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates DSM: NO RESPONSE ON CKT 915 (BUS -), go to step 10.
  3. Turn ignition switch to LOCK position. Disconnect DSM harness connector C341c. Disconnect NGS tester. Measure resistance between terminal No. 1 (Gray/White wire) at DSM harness connector C341c and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 16). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace DSM and retest system for normal operation.
  4. Disconnect Auxiliary Junction Box (AJB) harness connector C283a, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  5. Measure resistance in Gray/White wire between terminal No. 16 at AJB harness connector C283a and terminal No. 1 at DSM harness connector C341c. (Scheme 3)and (Scheme 16). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step 7.
  6. Disconnect in-line harness connector C315, located under driver' seat. Measure resistance in Gray/White wire between terminal No. 6 at male half of in-line harness connector C315 and terminal No. 1 at DSM harness connector C341c. (Scheme 16)and (Scheme 17). If resistance is 5 ohms or less, repair open in Gray/White wire between in-line harness connector and AJB. Retest system for normal operation. If resistance is greater than 5 ohms, repair open in Gray/White wire between in-line harness connector C315 and DSM. Retest system for normal operation.
  7. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 16 at AJB connector C283a and terminal No. 16 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  8. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray wire between terminal No. 12 at joint connector No. 4 harness connector C223 and terminal No. 16 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and joint connector No. 4. Retest system for normal operation.
  9. Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  10. Turn ignition switch to LOCK position. Disconnect DSM harness connector C341c. Disconnect NGS tester. Measure resistance between terminal No. 9 (Blue/Orange wire) at DSM harness connector C341c and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 16). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace DSM and retest system for normal operation.
  11. Disconnect Auxiliary Junction Box (AJB) harness connector C283a, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  12. Measure resistance in Blue/Orange wire between terminal No. 12 at AJB harness connector C283a and terminal No. 9 at DSM harness connector C341c. (Scheme 3)and (Scheme 16). If resistance is 5 ohms or less, go to step 14. If resistance is greater than 5 ohms, go to next step.
  13. Disconnect in-line harness connector C315, located under driver' seat. Measure resistance in Blue/Orange wire between terminal No. 13 at male half of in-line harness connector C315 and terminal No. 9 at DSM harness connector C341c. (Scheme 16)and (Scheme 17). If resistance is 5 ohms or less, repair open in Blue/Orange wire between in-line harness connector and AJB. Retest system for normal operation. If resistance is greater than 5 ohms, repair open in Blue/Orange wire between in-line harness connector C315 and DSM. Retest system for normal operation.
  14. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 12 at AJB connector C283a and terminal No. 12 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  15. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue wire between terminal No. 11 at joint connector No. 4 harness connector C223 and terminal No. 12 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and joint connector No. 4. Retest system for normal operation.
  16. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 16

Scheme 16
Scheme 16

Scheme 17

Scheme 17
Scheme 17

TEST K: DRIVER'S DOOR MODULE (DDM) DOES NOT RESPOND TO NGS TESTER

  1. Turn ignition switch to LOCK position. Disconnect DDM harness connector C501a, located behind driver's door panel. Disconnect NGS tester (if connected). Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect DDM harness connector C501a and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates DDM: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates DDM: NO RESPONSE ON CKT 915 (BUS -), go to step 9.
  3. Turn ignition switch to LOCK position. Disconnect DDM harness connector C501a. Disconnect NGS tester. Measure resistance between terminal No. 3 (Gray/Orange wire) at DDM harness connector C501a and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 18). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace DDM and retest system for normal operation.
  4. Disconnect Auxiliary Junction Box (AJB) harness connector C283a, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  5. Measure resistance in Gray/Orange wire between terminal No. 8 at AJB harness connector C283a and terminal No. 3 at DDM harness connector C501a. (Scheme 3)and (Scheme 18). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray/Orange wire between AJB and DDM. Retest system for normal operation.
  6. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 8 at AJB connector C283a and terminal No. 16 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray wire between terminal No. 12 at joint connector No. 4 harness connector C223 and terminal No. 16 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and joint connector No. 4. Retest system for normal operation.
  8. Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  9. Turn ignition switch to LOCK position. Disconnect DDM harness connector C501a. Disconnect NGS tester. Measure resistance between terminal No. 4 (Blue/Black wire) at DDM harness connector C501a and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 18). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace DDM and retest system for normal operation.
  10. Disconnect Auxiliary Junction Box (AJB) harness connector C283a, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  11. Measure resistance in Blue/Black wire between terminal No. 4 at AJB harness connector C283a and terminal No. 4 at DDM harness connector C501a. (Scheme 3)and (Scheme 18). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue/Black wire between AJB and DDM. Retest system for normal operation.
  12. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 4 at AJB connector C283a and terminal No. 12 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  13. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue wire between terminal No. 11 at joint connector No. 4 harness connector C223 and terminal No. 12 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and joint connector No. 4. Retest system for normal operation.
  14. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 18

Scheme 18
Scheme 18

TEST L: REAR ELECTRONIC MODULE (REM) DOES NOT RESPOND TO NGS TESTER

  1. Turn ignition switch to LOCK position. Disconnect REM harness connector C420b, located on right side of trunk compartment. Disconnect NGS tester (if connected). Inspect harness connector for loose, damaged or corroded terminals. If problem exists, repair harness connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Connect REM harness connector C420b and connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If NGS tester indicates REM: NO RESPONSE ON CKT 914 (BUS +), go to next step. If NGS tester indicates REM: NO RESPONSE ON CKT 915 (BUS -), go to step 9.
  3. Turn ignition switch to LOCK position. Disconnect REM harness connector C420b. Disconnect NGS tester. Measure resistance between terminal No. 1 (Gray/White wire) at REM harness connector C420b and terminal No. 2 (Gray/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 19). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace REM and retest system for normal operation.
  4. Disconnect Auxiliary Junction Box (AJB) harness connector C283b, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  5. Measure resistance in Gray/White wire between terminal No. 16 at AJB harness connector C283b and terminal No. 1 at REM harness connector C420b. (Scheme 3)and (Scheme 19). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray/White wire between AJB and REM. Retest system for normal operation.
  6. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 16 at AJB connector C283b and terminal No. 16 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  7. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray wire between terminal No. 12 at joint connector No. 4 harness connector C223 and terminal No. 16 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Gray wire between AJB and joint connector No. 4. Retest system for normal operation.
  8. Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Gray/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  9. Turn ignition switch to LOCK position. Disconnect REM harness connector C420b. Disconnect NGS tester. Measure resistance between terminal No. 2 (Blue/Orange wire) at REM harness connector C420b and terminal No. 10 (Blue/Red wire) at Data Link Connector (DLC). (Scheme 1)and (Scheme 19). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace REM and retest system for normal operation.
  10. Disconnect Auxiliary Junction Box (AJB) harness connector C283b, located behind left side of instrument panel. see scheme 1 Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist, go to next step. If problem exists, repair harness connector as necessary and retest system for normal operation.
  11. Measure resistance in Blue/Orange wire between terminal No. 12 at AJB harness connector C283b and terminal No. 2 at REM harness connector C420b. (Scheme 3)and (Scheme 19). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue/Orange wire between AJB and REM. Retest system for normal operation.
  12. Disconnect AJB harness connector C283d, located behind left side of instrument panel. see scheme 1 Measure resistance between terminal No. 12 at AJB connector C283b and terminal No. 12 at AJB connector C283d (component side). (Scheme 4) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace AJB and retest system for normal operation.
  13. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Blue wire between terminal No. 11 at joint connector No. 4 harness connector C223 and terminal No. 12 at AJB harness connector C283d. (Scheme 3)and (Scheme 5). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Blue wire between AJB and joint connector No. 4. Retest system for normal operation.
  14. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) If resistance is 5 ohms or less, repair open in Blue/Red wire between joint connector No. 4 and DLC. Retest system for normal operation. If resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.

Scheme 19

Scheme 19
Scheme 19

TEST M: NO MODULE/NETWORK COMMUNICATION - ISO 9141 LINK

Note. Depending on module configuration, with all modules connected and with ignition switch in RUN position or with engine running, 2-3 volts may be present at Data Link Connector (DLC) terminal No. 7 (Gray/Black wire). This is the International Standards Organization (ISO) 9141 diagnostic communications network circuit.

  1. Turn ignition switch to RUN position. Measure voltage between terminals No. 4 (Black wire) and No. 7 (Gray/Black wire) at DLC. Measure voltage between terminals No. 7 (Gray/Black wire) and No. 16 (Orange/Yellow wire) at Data Link Connector (DLC). (Scheme 1) If voltage is not indicated in both measurements, go to next step. If voltage is indicated in both measurements, replace Restraints Control Module (RCM).
  2. Turn ignition switch to LOCK position. Disconnect Anti-Lock Brake System (ABS) module harness connector, located in right front corner of engine compartment. Turn ignition switch to RUN position. Measure voltage between terminals No. 4 (Black wire) and No. 7 (Gray/Black wire) at DLC. Measure voltage between terminals No. 7 (Gray/Black wire) and No. 16 (Orange/Yellow wire) at DLC. If voltage is not indicated in both measurements, go to next step. If voltage is indicated in both measurements, replace ABS module.
  3. Turn ignition switch to LOCK position. Disconnect in-line harness connector C211, located behind driver's side kick panel. see scheme 1 Turn ignition switch to RUN position. Measure voltage between terminals No. 4 (Black wire) and No. 7 (Gray/Black wire) at DLC. Measure voltage between terminals No. 7 (Gray/Black wire) and No. 16 (Orange/Yellow wire) at DLC. If voltage is not indicated in both measurements, go to next step. If voltage is indicated in both measurement, repair short to ground or voltage in Gray wire between in-line harness connector C211 and ABS module.
  4. Turn ignition switch to LOCK position. Disconnect in-line harness connector C212, located behind driver's side kick panel. see scheme 1 Turn ignition switch to RUN position. Measure voltage between terminals No. 4 (Black wire) and No. 7 (Gray/Black wire) at DLC. Measure voltage between terminals No. 7 (Gray/Black wire) and No. 16 (Orange/Yellow wire) at DLC. If voltage is indicated in either measurement, repair short to ground or voltage in Gray/Black wire between in-line harness connector C212 and DLC. If voltage is not indicated in either measurement, go to next step.
  5. Turn ignition switch to LOCK position. Deactivate air bag system. See appropriate AIR BAG RESTRAINT SYSTEMS article. Disconnect Restraints Control Module (RCM) harness connector C310a, located under center console. Connect in-line harness connector C212. Turn ignition switch to RUN position. Measure voltage between terminals No. 4 (Black wire) and No. 7 (Gray/Black wire) at DLC. Measure voltage between terminals No. 7 (Gray/Black wire) and No. 16 (Orange/Yellow wire) at DLC. If voltage is indicated in either measurement, repair short to ground or voltage in wiring between in-line harness connector C212, RCM and in-line harness connector C211. If voltage is not indicated in either measurement, replace RCM.

TEST N: NO MODULE/NETWORK COMMUNICATION - SCP BUS LINK

Note. Depending on module configuration, with all modules connected and with ignition switch in RUN position or with engine running, 2-3 volts may be present at Data Link Connector (DLC) terminals No. 2 (Gray/Red wire) and No. 10 (Blue/Red wire). These are the Standard Corporate Protocol (SCP) diagnostic communications network circuits.

Note. Anti-Lock Brake System (ABS) control module is referred to as a Stability Assist Module (SAM) if vehicle is equipped with traction control and stability assist. Audio Control Module (ACM) may also be referred to as audio unit. Next Generation Speed Control (NGSC) servo is an integral part of the Powertrain Control Module (PCM). Message center module is an integral part of the instrument cluster. Steering Column Lock Module (SCLM) may also be referred to as a Steering Column Lock Unit (SCLU) or steering column lock.

Note. Remote Emergency Satellite Cellular Unit (RESCU) module, Driver's Seat Module (DSM) and Steering Column Lock Module (SCLM) will fail data link diagnostic test if vehicle is not equipped with that module(s). Vehicles with voice activated cellular phone are equipped with a RESCU module. Vehicles with memory seats are equipped with a DSM. Vehicles with a manual transmission are equipped with a SCLM.

  1. Inspect NGS tester connector for loose, damaged or corroded terminals. If problem exists, repair connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Turn ignition switch to LOCK position. Inspect Data Link Connector (DLC) for physical damage, bent terminals or corrosion. If problem exists, repair connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  3. Turn ignition switch to LOCK position. Disconnect joint connector No. 4 harness connector C223, located behind left side of instrument panel. Measure resistance in Gray/Red wire between terminal No. 14 at joint connector No. 4 harness connector C223 and terminal No. 2 at DLC. (Scheme 1)and (Scheme 5). Measure resistance in Blue/Red wire between terminal No. 9 at joint connector No. 4 harness connector C223 and terminal No. 10 at DLC. If both resistances are 5 ohms or less, go to next step. If either resistance is greater than 5 ohms, repair open in appropriate wire between joint connector No. 4 and DLC. Retest system for normal operation.
  4. Turn ignition switch to RUN position. Measure voltage between terminals No. 4 (Black wire) and No. 2 (Gray/Red wire) at DLC. (Scheme 1) Measure voltage between terminal No. 16 (Orange/Yellow wire) and No. 2 (Gray/Red wire) at DLC. Measure voltage between terminals No. 4 (Black wire) and No. 10 (Blue/Red wire) at DLC. (Scheme 1) Measure voltage between terminal No. 16 (Orange/Yellow wire) and No. 10 (Blue/Red wire) at DLC. If voltage is indicated in any measurement, repair short to ground or voltage in wiring between DLC and joint connector No. 4. If voltage is not indicated in any measurement, go to next step.
  5. Measure resistance between terminals No. 9 and 11 at joint connector No. 4 (component side). (Scheme 6) Measure resistance between terminals No. 12 and 14 at joint connector No. 4 (component side). If both resistances are 5 ohms or less, go to next step. If either resistance is greater than 5 ohms, replace joint connector No. 4 and retest system for normal operation.
  6. Connect joint connector No. 4 harness connector C223. Disconnect Auxiliary Junction Box (AJB) harness connector C283d, located behind left side of instrument panel. see scheme 1 Connect NGS tester. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If ACM, ICM, DATC module and/or SCLM (if equipped) did not pass, go to next step. If ACM, ICM, DATC module and SCLM (if equipped) all passed, go to step 13.
  7. Turn ignition switch to LOCK position. Disconnect ACM harness connector C240a. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If ACM, ICM, DATC module and SCLM did not pass, go to next step if equipped with SCLM or go to step 11 if not equipped with SCLM. If ICM, DATC module and SCLM all passed, replace ACM.
  8. Turn ignition switch to LOCK position. Disconnect SCLM harness connector C267. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If ACM, ICM, DATC module and SCLM did not pass, go to next step. If ICM and DATC module both passed, replace SCLM.
  9. Turn ignition switch to LOCK position. Disconnect in-line harness connector C248, located above steering column "U" joint. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If ACM, ICM, DATC and SCLM did not pass, go to next step. If ICM and DATC module both passed, repair short to ground or voltage in Gray/Orange wire between in-line harness connector C248 and SCLM.
  10. Turn ignition switch to LOCK position. Disconnect DATC module harness connector C228a. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If ACM, ICM, DATC module and SCLM did not pass, go to next step. If ICM passed, replace DATC module.
  11. Turn ignition switch to LOCK position. Disconnect instrument cluster harness connector C220b. Turn ignition switch to RUN position. Measure voltage between terminals No. 4 (Black wire) and No. 2 (Gray/Red wire) at DLC. Measure voltage between terminals No. 2 (Gray/Red wire) and No. 16 (Orange/Yellow wire) at DLC. Measure voltage between terminals No. 4 (Black wire) and No. 10 (Blue/Red wire) at DLC. Measure voltage between terminals No. 10 (Blue/Red wire) and No. 16 (Orange/Yellow wire) at DLC. If voltage is not indicated in all measurements, go to next step. If voltage is indicated in all measurements, replace instrument cluster.
  12. Turn ignition switch to LOCK position. Disconnect joint connector No. 4 harness connector C223. Turn ignition switch to RUN position. Measure voltage between terminal No. 4 (Black wire) at DLC and appropriate terminals at joint connector No. 4 harness connector C223. Measure voltage between terminal No. 16 (Orange/Yellow wire) at DLC and appropriate terminals at joint connector No. 4 harness connector C223. See «BUS CIRCUIT IDENTIFICATION»(ref-2592-S27690281772000040700000) table. (Scheme 1)and (Scheme 5). If voltage is indicated in any measurement, repair short to ground or voltage in appropriate circuit. If voltage is not indicated in any measurement, replace joint connector No. 4. BUS CIRCUIT IDENTIFICATION Terminal No. Wire Color 6 (1) Blue/Black 7 Blue/Yellow 8 Blue/Yellow 10 Blue/White 11 Blue 12 Gray 13 Gray/Violet wire 15 Gray/Black 16 Gray/Black 17 (1) Gray/Orange (1) This circuit only exists if vehicle is equipped with SCLM.
  13. Turn ignition switch to LOCK position. Connect AJB harness connector C283d. Disconnect AJB harness connector C283a. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM and DSM did not pass, go to next step. If more than DDM and DSM did not pass, go to step 17.
  14. Turn ignition switch to LOCK position. Connect AJB harness connector C283a. Disconnect DDM harness connector C501a, located behind driver's door panel. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM did not pass, replace DDM. If more than DDM did not pass, go to next step.
  15. If vehicle is equipped with DSM, go to next step. If vehicle is not equipped with DSM, repair short to ground or voltage in wiring between AJB and DDM.
  16. Turn ignition switch to LOCK position. Disconnect DSM harness connector C341c, located under driver's seat. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM and DSM did not pass, replace DSM. If more than DDM and DSM did not pass, repair short to ground or voltage in wiring between AJB and DSM, or between AJB and DDM.
  17. Turn ignition switch to LOCK position. Disconnect AJB harness connector C283b. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM, REM, DSM and RESCU module (if equipped) did not pass, go to next step. If more than DDM, REM, DSM and RESCU module (if equipped) did not pass, go to step 22.
  18. If vehicle is equipped with RESCU module, go to next step. If vehicle is not equipped with RESCU module, go to step 21.
  19. Turn ignition switch to LOCK position. Connect AJB harness connector C283b. Disconnect RESCU module harness connector. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM, DSM and RESCU module did not pass, replace RESCU module. If more than DDM, DSM and RESCU module did not pass, go to next step.
  20. Turn ignition switch to LOCK position. Disconnect REM 22-pin harness connector C420b. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM, REM, DSM and RESCU module did not pass, replace REM. If more than DDM, REM, DSM and RESCU module did not pass, repair short to ground or voltage in wiring between AJB and REM, or between AJB and RESCU module.
  21. Turn ignition switch to LOCK position. Connect AJB harness connector C283b. Disconnect REM 22-pin harness connector C420b. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM, REM and DSM did not pass, replace REM. If more than DDM, REM and DSM did not pass, repair short to ground or voltage in wiring between AJB and REM.
  22. Turn ignition switch to LOCK position. Disconnect AJB harness connector C283c. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM, REM, FEM, ABS control module, PCM, DSM and RESCU module (if equipped) did not pass, go to next step. If more than DDM, REM, FEM, ABS control module, PCM, DSM and RESCU module (if equipped) did not pass, repair short to ground or voltage in AJB.
  23. Turn ignition switch to LOCK position. Connect AJB harness connector C283c. Disconnect FEM harness connector C201c. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If more than DDM, REM, FEM, DSM and RESCU module (if equipped) did not pass, go to next step. If only DDM, REM, FEM, DSM and RESCU module (if equipped) did not pass, replace FEM.
  24. Turn ignition switch to LOCK position. Disconnect ABS control module harness connector. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If more than DDM, REM, FEM, ABS control module, DSM and RESCU module (if equipped) did not pass, go to next step. If only DDM, REM, FEM, ABS control module, DSM and RESCU module (if equipped) did not pass, replace ABS control module.
  25. Turn ignition switch to LOCK position. Disconnect PCM harness connector C175a. Turn ignition switch to RUN position. Perform data link diagnostic test. See «DATA LINK DIAGNOSTIC TEST»(ref-2592-S00093988872000040700000) under SELF-DIAGNOSTIC SYSTEM. If only DDM, REM, FEM, ABS control module, PCM, DSM and RESCU module (if equipped) did not pass, replace PCM. If more than DDM, REM, FEM, ABS control module, PCM, DSM and RESCU module (if equipped) did not pass, repair short to ground or voltage in wiring between AJB and FEM, ABS control module, PCM and/or ABS test connector.

TEST O: NO MODULE/NETWORK COMMUNICATION - NO POWER TO NGS TESTER

  1. Inspect NGS tester connector for loose, damaged or corroded terminals. If problem exists, repair connector as necessary and retest system for normal operation. If problem does not exist, go to next step.
  2. Turn ignition switch to LOCK position. Inspect Data Link Connector (DLC) for physical damage, bent terminals or corrosion. If problem exists, repair as necessary and retest system for normal operation. If problem does not exist, go to next step.
  3. Inspect fuse No. 206 (10-amp) from instrument panel fuse block. If fuse is okay, go to next step. If fuse is blown, replace fuse and retest system for normal operation. Recheck fuse. If fuse is okay, go to next step. If fuse is blown, repair short to ground in Orange/Yellow wire between instrument panel fuse block and DLC. Retest system for normal operation.
  4. Measure voltage between ground and terminal No. 16 (Orange/Yellow wire) at DLC. (Scheme 1) If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Orange/Yellow wire between instrument panel fuse block and DLC. Retest system for normal operation.
  5. Measure resistance between ground and terminals No. 4 (Black wire) and No. 5 (Brown wire) at DLC. If both resistances are 5 ohms or less, repair or replace NGS tester. Retest system for normal operation. If either resistance is greater than 5 ohms, repair open in Black wire or Brown wire between ground and DLC. Retest system for normal operation.

DIAGNOSTIC TROUBLE CODE DEFINITIONS

Note. Anti-Lock Brake System (ABS) control module is referred to as a Stability Assist Module (SAM) if vehicle is equipped with traction control and stability assist. Audio Control Module (ACM) may also be referred to as audio unit. Next Generation Speed Control (NGSC) servo is an integral part of the Powertrain Control Module (PCM). Message center module is an integral part of the instrument cluster. Steering Column Lock Module (SCLM) may also be referred to as a Steering Column Lock Unit (SCLU) or steering column lock.

DTCDescriptionPerform Test
B1255 (1)Air Temperature External Sensor Circuit Open(2)
B1257 (1)Air Temperature External Sensor Circuit Short To Ground(2)
B1342ECU Defective(3)
B1485Brake Pedal Input Circuit Shorted To Voltage(2)
B1676Battery Voltage Out Of Range(2)
B2477Module Configuration Failure(5)
C1095ABS Hydraulic Pump Motor Circuit Failure(2)
C1145Right Front ABS Sensor Input Circuit Failure(2)
C1155Left Front ABS Sensor Input Circuit Failure(2)
C1165Right Rear ABS Sensor Input Circuit Failure(2)
C1175Left Rear ABS Sensor Input Circuit Failure(2)
C1233Left Front ABS Sensor Input Signal Missing(2)
C1234Right Front ABS Sensor Input Signal Missing(2)
C1235Right Rear ABS Sensor Input Signal Missing(2)
C1236Left Rear ABS Sensor Input Signal Missing(2)
C1277 (1)Steering Wheel Angle 1 & 2 Circuit Failure(2)
C1278 (1)Steering Wheel Angle 1 & 2 Signal Failure(2)
C1279 (1) (4)Yaw Rate Sensor Circuit Failure(2)
C1280 (1) (4)Yaw Rate Sensor Signal Failure(2)
C1281 (1) (4)Lateral Accelerometer Circuit Failure(2)
C1282 (1) (4)Lateral Accelerometer Signal Failure(2)
C1285 (1)Booster Solenoid Circuit Failure(2)
C1286 (1)Booster Mechanical Failure(2)
C1287 (1)Booster Pedal Force Switch Circuit Failure(2)
C1288 (1) (4)Pressure Transducer Main/Primary Input Circuit Failure(2)
C1289 (1) (4)Pressure Transducer Redundant/Secondary Input Circuit Failure(2)
C1730 (1) (4)Reference Voltage Out Of Range (+5 V)(2)
C1805 (1)Mismatched PCM And/Or Stability Assist Module(2)
C1960 (1)Driver Brake Apply Circuit Fault(2)
C1963 (1)Stability Control Inhibit Warning(2)
C1969 (1)TC/YC Switch Lamp Circuit Fault(2)
U1009SCP Invalid/Missing Data For Engine Torque(6)
U1027SCP Invalid/Missing Data For Engine RPM(6)
U1059SCP Invalid/Missing Data For Transmission Range (PRNDL)(7)
U1073SCP Invalid/Missing Data For Engine Coolant(6)
U1243SCP Invalid/Missing Data For Exterior Environment(6)
U1262SCP Bus Communications Fault(8)
(1) This code only applies to vehicles with traction control and stability assist. (2) Repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES. (3) Using NGS tester, retrieve and document all continuous DTCs. Perform Anti-Lock Brake System (ABS) control module self-test. If DTC B1342 is retrieved again, replace ABS control module. (4) DTC C1730 MUST BE repaired before repairing DTCs C1279, C1280, C1281, C1282, C1288 and/or C1289. (5) Configure Anti-Lock Brake System (ABS) control module. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace ABS control module and repeat self-test. (6) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. (7) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair transmission control concern. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS. (8) Perform TEST A: ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DOES NOT RESPOND TO NGS TESTER under SYSTEM TESTS.
(1)This code only applies to vehicles with traction control and stability assist.
(2)Repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES.
(3)Using NGS tester, retrieve and document all continuous DTCs. Perform Anti-Lock Brake System (ABS) control module self-test. If DTC B1342 is retrieved again, replace ABS control module.
(4)DTC C1730 MUST BE repaired before repairing DTCs C1279, C1280, C1281, C1282, C1288 and/or C1289.
(5)Configure Anti-Lock Brake System (ABS) control module. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace ABS control module and repeat self-test.
(6)Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(7)Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair transmission control concern. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
(8)Perform TEST A: ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DOES NOT RESPOND TO NGS TESTER under SYSTEM TESTS.

ANTI-LOCK BRAKE SYSTEM CONTROL MODULE DTC INDEX

DTCDescriptionPerform Test
B1342ECU Defective(1)
B2401Audio Tape Deck Mechanical Fault(2)
B2402Audio CD/DJ Thermal Shutdown(3)
B2403Audio CD/DJ Internal Fault(3)
B2404Audio Steering Wheel Switch Circuit Failure(3)
B2405Audio Single-Disc CD Player Thermal Shutdown Fault(4)
B2406Audio Single-Disc CD Player Internal Fault(4)
B2477Module Configuration Failure(5)
U2003Audio CD/DJ Is Not Responding(3)
U2005Audio Rear Integrated Control Panel Unit Is Not Responding(6)
U2008Audio Phone Is Not Responding(7)
U2014Audio Subwoofer Unit Is Not Responding(3)
U2020Center Image Amplifier Is Not Responding(3)
(1) Using NGS tester, retrieve and document all continuous DTCs. Perform Audio Control Module (ACM) self-test. If DTC B1342 is retrieved again, replace ACM. (2) Remove audio tape. Using NGS tester, clear DTCs. Perform Audio Control Module (ACM) self-test. If B2401 is retrieved again, repair or replace ACM. (3) Repair audio system concern. (4) Not used on this vehicle. (5) Configure Audio Control Module (ACM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace ACM and repeat self-test. (6) This DTC is retrieved if vehicle is not equipped with Rear Integrated Control Panel (RICP), or RICP is disconnected or inoperative. (7) Repair cellular phone system concern.
(1)Using NGS tester, retrieve and document all continuous DTCs. Perform Audio Control Module (ACM) self-test. If DTC B1342 is retrieved again, replace ACM.
(2)Remove audio tape. Using NGS tester, clear DTCs. Perform Audio Control Module (ACM) self-test. If B2401 is retrieved again, repair or replace ACM.
(3)Repair audio system concern.
(4)Not used on this vehicle.
(5)Configure Audio Control Module (ACM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace ACM and repeat self-test.
(6)This DTC is retrieved if vehicle is not equipped with Rear Integrated Control Panel (RICP), or RICP is disconnected or inoperative.
(7)Repair cellular phone system concern.

AUDIO CONTROL MODULE DTC INDEX

DTCDescriptionPerform Test
B1342ECU Defective(1)
B1844Phone Handset Circuit Failure(2)
(1) Using NGS tester, retrieve and document all continuous DTCs. Perform Cellular Phone Module (CPM) self-test. If DTC B1342 is retrieved again, replace CPM. (2) Replace Cellular Phone Module (CPM).
(1)Using NGS tester, retrieve and document all continuous DTCs. Perform Cellular Phone Module (CPM) self-test. If DTC B1342 is retrieved again, replace CPM.
(2)Replace Cellular Phone Module (CPM).

CELLULAR PHONE MODULE DTC INDEX

DTCDescriptionPerform Test
B1309Power Door Lock Circuit Short To Ground(1)
B1341Power Door Unlock Circuit Short To Ground(1)
B1342ECU Defective(2)
B1400Driver's Window One-Touch Down Window Relay Circuit Short To Voltage(3)
B1405Driver's Power Window Down Circuit Short To Voltage(3)
B1408Driver's Power Window Up Circuit Short To Voltage(3)
B1416Left Rear Power Window Motor Circuit Short To Voltage(3)
B1420Passenger's Power Window Motor Circuit Short To Voltage(3)
B1424Right Rear Power Window Motor Circuit Short To Voltage(3)
B1530Memory Set Switch Circuit Short To Ground(4)
B1534Memory 1 Switch Circuit Short To Ground(4)
B1538Memory 2 Switch Circuit Short To Ground(4)
B1676Battery Voltage Out Of Range(5)
B2112Driver's Door Set Switch Stuck Failure(1)
B2116Driver's Door Release Switch Stuck Failure(1)
B2320Driver's Mirror Horizontal Feedback Potentiometer Circuit Failure(4)
B2324Driver's Mirror Vertical Feedback Potentiometer Circuit Failure(4)
B2336Mirror Switch Assembly Circuit Failure(4)
B2425Remote Keyless Entry Out Of Synchronization(1)
B2477Module Configuration Failure(6)
U1041SCP Invalid/Missing Data For Vehicle Speed(7)
U1059SCP Invalid/Missing Data For Transmission Range (PRNDL)(8)
(1) Repair remote keyless entry system concern. See SELF-DIAGNOSTIC SYSTEM in REMOTE KEYLESS ENTRY SYSTEMS - LS article. (2) Using NGS tester, retrieve and document all continuous DTCs. Perform Driver's Door Module (DDM) self-test. If DTC B1342 is retrieved again, replace DDM. (3) Repair power window system concern. See SELF-DIAGNOSTIC SYSTEM in POWER WINDOWS - LS article. (4) Repair power mirror system concern. See SELF-DIAGNOSTIC SYSTEM in POWER MIRRORS - LS article. (5) Repair active anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in ACTIVE ANTI-THEFT SYSTEMS - LS article. (6) Configure Driver's Door Module (DDM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace DDM and repeat self-test. (7) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES. (8) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(1)Repair remote keyless entry system concern. See SELF-DIAGNOSTIC SYSTEM in REMOTE KEYLESS ENTRY SYSTEMS - LS article.
(2)Using NGS tester, retrieve and document all continuous DTCs. Perform Driver's Door Module (DDM) self-test. If DTC B1342 is retrieved again, replace DDM.
(3)Repair power window system concern. See SELF-DIAGNOSTIC SYSTEM in POWER WINDOWS - LS article.
(4)Repair power mirror system concern. See SELF-DIAGNOSTIC SYSTEM in POWER MIRRORS - LS article.
(5)Repair active anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in ACTIVE ANTI-THEFT SYSTEMS - LS article.
(6)Configure Driver's Door Module (DDM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace DDM and repeat self-test.
(7)Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES.
(8)Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

DRIVER'S DOOR MODULE DTC INDEX

DTCDescriptionPerform Test
B1342ECU Defective(1)
B1676Battery Voltage Out Of Range(2)
B1703Driver's Seat Recline Forward Switch Circuit Short To Voltage(2)
B1707Driver's Seat Recline Rearward Switch Circuit Short To Voltage(2)
B1711Driver's Seat Front Up Switch Circuit Short To Voltage(2)
B1715Driver's Seat Front Down Switch Circuit Short To Voltage(2)
B1719Driver's Seat Forward Switch Circuit Short To Voltage(2)
B1723Driver's Seat Rearward Switch Circuit Short To Voltage(2)
B1727Driver's Seat Rear Up Switch Circuit Short To Voltage(2)
B1731Driver's Seat Rear Down Switch Circuit Short To Voltage(2)
B1757Driver's Seat Rear Down Circuit Failure(2)
B1761Driver's Seat Front Down Circuit Failure(2)
B1765Driver's Seat Forward Circuit Failure(2)
B1769Driver's Seat Rearward Circuit Failure(2)
B2143NVM Memory Failure(3)
B2146Seat Recline Motor Position Out Of Range(2)
B2149Seat Front Vertical Motor Position Out Of Range(2)
B2152Seat Vertical Motor Position Out Of Range(2)
B2155Seat Horizontal Motor Position Out Of Range(2)
B2158Seat Recline Motor Memory Position Out Of Range(2)
B2161Seat Front Vertical Motor Memory Position Out Of Range(2)
B2164Seat Rear Vertical Motor Memory Position Out Of Range(2)
B2167Seat Horizontal Motor Memory Position Out Of Range(2)
(1) Using NGS tester, retrieve and document all continuous DTCs. Perform Driver's Seat Module (DSM) self-test. If DTC B1342 is retrieved again, replace DSM. (2) Repair power seat system concern. See SELF-DIAGNOSTIC SYSTEM in POWER SEATS - LS article. (3) Replace Driver's Seat Module (DSM). Using NGS tester, perform DSM self-test.
(1)Using NGS tester, retrieve and document all continuous DTCs. Perform Driver's Seat Module (DSM) self-test. If DTC B1342 is retrieved again, replace DSM.
(2)Repair power seat system concern. See SELF-DIAGNOSTIC SYSTEM in POWER SEATS - LS article.
(3)Replace Driver's Seat Module (DSM). Using NGS tester, perform DSM self-test.

DRIVER'S SEAT MODULE DTC INDEX

DTCDescriptionPerform Test
B1242Recirculation Door Actuator Circuit Failure(1)
B1251In-Car Temperature Sensor Circuit Open(1)
B1253In-Car Temperature Sensor Circuit Short To Ground(1)
B1255Ambient Temperature Sensor Circuit Open(1)
B1257Ambient Temperature Sensor Circuit Short To Ground(1)
B1259A/C Solar Radiation Sensor Circuit Open(1)
B1261A/C Solar Radiation Sensor Circuit Short To Ground(1)
B1262Defrost Door Actuator Circuit Failure(1)
B1263Panel Door Actuator Circuit Failure(1)
B1264Floor Door Actuator Circuit Failure(1)
B1265Cold Air By-Pass Door Actuator Circuit Failure(1)
B1342ECU Defective(1)
B1676Battery Voltage Out Of Range(1)
B1946Evaporator Discharge Temperature Sensor Circuit Open(1)
B1947Evaporator Discharge Temperature Sensor Circuit Short To Ground(1)
B1966Driver's Heater Core Discharge Temperature Sensor Circuit Open(1)
B1967Driver's Heater Core Discharge Temperature Sensor Circuit Short(1)
B2428Passenger's Heater Core Discharge Temperature Sensor Circuit Open(1)
B2429Passenger's Heater Core Discharge Temperature Sensor Circuit Short(1)
B2477Module Configuration Failure(2)
U1041SCP Invalid/Missing Data For Vehicle Speed(3)
U1027SCP Invalid/Missing Data For Engine RPM(3)
U1073SCP Invalid/Missing Data For Engine Coolant(3)
U1178SCP Invalid/Missing Data For Voice Command(4)
U1222SCP Invalid/Missing Data For Interior Lights(5)
(1) Repair climate control concern. See appropriate AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING. (2) Configure Dual Electronic Automatic Temperature Control Module (DEATCM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace DEATCM and repeat self-test. (3) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. (4) This code only appears if vehicle is equipped with voice command. Testing information is not available from manufacturer. (5) Repair interior lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMP SYSTEMS - LS article.
(1)Repair climate control concern. See appropriate AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(2)Configure Dual Electronic Automatic Temperature Control Module (DEATCM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace DEATCM and repeat self-test.
(3)Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(4)This code only appears if vehicle is equipped with voice command. Testing information is not available from manufacturer.
(5)Repair interior lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMP SYSTEMS - LS article.

DUAL ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE DTC INDEX

DTCDescriptionPerform Test
B1319Driver's Door Ajar Circuit Failure(1)
B1327Passenger's Door Ajar Circuit Failure(1)
B1342ECU Defective(2)
B1438Wiper Mode Select Switch Circuit Failure(3)
B1446Wiper Park Sense Circuit Failure(3)
B1479Wiper Washer Fluid Level Sensor Circuit Failure(4)
B1499Left Turn Signal Lamp Circuit Failure(1)
B1501Left Turn Signal Lamp Circuit Short To Voltage(1)
B1503Right Turn Signal Lamp Circuit Failure(1)
B1505Right Turn Signal Lamp Circuit Short To Voltage(1)
B1519Hood Switch Circuit Failure(5)
B1567Headlamp High Beam Lamp Circuit Failure(1)
B1676Battery Voltage Out Of Range(5)
B1794Headlamp Low Beam Lamp Circuit Failure(1)
B2214Passenger's Front Window Up Switch Short To Voltage(6)
B2215Passenger's Front Window Down Switch Short To Voltage(6)
B2312Passenger's Mirror Horizontal Feedback Potentiometer Circuit Failure(7)
B2316Passenger's Mirror Vertical Feedback Potentiometer Circuit Failure(7)
B2442Intrusion Sensor Fault(8)
B2443Powertrain Performance Mode Switch Circuit Failure(9)
B2477Module Configuration Failure(10)
C1284Oil Pressure Switch Failure(4)
C1446Brake Switch Circuit Failure(4)
C1924VAPS Solenoid Actuator Output Circuit Short To Ground(11)
C1925VAPS Solenoid Actuator Return Circuit Failure(11)
U1027SCP Invalid/Missing Data For Engine RPM(12)
U1041SCP Invalid/Missing Data For Vehicle Speed(13)
U1059SCP Invalid/Missing Data For Transmission Range (PRNDL)(12)
U1218SCP Invalid/Missing Data For External Lamps(14)
U1222SCP Invalid/Missing Data For Interior Lamps(14)
U1227SCP Invalid/Missing Data For Body Status(14)
(1) Repair lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMPS - LS article. (2) Using NGS tester, retrieve and document all continuous DTCs. Perform Front Electronic Module (FEM) self-test. If DTC B1342 is retrieved again, replace FEM. (3) Repair wiper/washer system concern. See SELF-DIAGNOSTIC SYSTEM in WIPER/WASHER SYSTEMS - LS article. (4) For testing procedures, see SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article. (5) Repair active anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in ACTIVE ANTI-THEFT SYSTEMS - LS article. (6) Repair power window system concern. See SELF-DIAGNOSTIC SYSTEM in POWER WINDOWS - LS article. (7) Repair power mirrors system concern. See SELF-DIAGNOSTIC SYSTEM in POWER MIRRORS - LS article. (8) Information is not available from manufacturer. (9) Not used on this vehicle. (10) Configure Front Electronic Module (FEM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace FEM and repeat self-test. (11) Repair electronic steering concern. See appropriate ELECTRONIC article in STEERING. (12) Caused by Powertrain Control Module (PCM) module. Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. (13) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES. (14) Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test.
(1)Repair lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMPS - LS article.
(2)Using NGS tester, retrieve and document all continuous DTCs. Perform Front Electronic Module (FEM) self-test. If DTC B1342 is retrieved again, replace FEM.
(3)Repair wiper/washer system concern. See SELF-DIAGNOSTIC SYSTEM in WIPER/WASHER SYSTEMS - LS article.
(4)For testing procedures, see SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article.
(5)Repair active anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in ACTIVE ANTI-THEFT SYSTEMS - LS article.
(6)Repair power window system concern. See SELF-DIAGNOSTIC SYSTEM in POWER WINDOWS - LS article.
(7)Repair power mirrors system concern. See SELF-DIAGNOSTIC SYSTEM in POWER MIRRORS - LS article.
(8)Information is not available from manufacturer.
(9)Not used on this vehicle.
(10)Configure Front Electronic Module (FEM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace FEM and repeat self-test.
(11)Repair electronic steering concern. See appropriate ELECTRONIC article in STEERING.
(12)Caused by Powertrain Control Module (PCM) module. Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(13)Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES.
(14)Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test.

FRONT ELECTRONIC MODULE DTC INDEX

DTCDescriptionPerform Test
B1201Fuel Sender Circuit Failure(1)
B1205Instrument Cluster Switch 1 Assembly Circuit Failure(2)
B1209Instrument Cluster Switch 2 Assembly Circuit Failure(2)
B1213Number Of Programmed Ignition Keys Below Minimum(3)
B1246Dim Panel Potentiometer Switch Circuit Failure(1)
B1342ECU Defective(4)
B1352Ignition Key-In Circuit Failure(1)
B1470Headlamp Input Circuit Failure(5)
B1492Ignition Cylinder Sensor Circuit Open(3)
B1567Headlamp High Beam Circuit Failure(5)
B1600PATS Ignition Key Transponder Signal Not Received(3)
B1601PATS Received Incorrect Key-Code From Ignition Key Transponder(3)
B1602PATS Received Invalid Key-Code Format From Transponder(3)
B1676Battery Voltage Out Of Range(1)
B1681PATS Transceiver Signal Is Not Received(3)
B1689Autolamp Delay Circuit Failure(5)
B1875Turn Signal/Hazard Switch Signal Circuit Failure(5)
B2103Antenna Not Connected(3)
B2139PATS Data Mismatch(3)
B2141NVM Configuration Failure(3)
B2143NVM Memory Failure(1)
B2162PATS Data Mismatched #2(3)
B2328Column Reach Feedback Potentiometer Circuit Failure(6)
B2332Column Tilt Feedback Potentiometer Circuit Failure(6)
B2351Steering Column Switch Circuit Failure(6)
B2431Transponder Programming Failed(3)
B2472For Light Switch Failure(5)
B2477Module Configuration Failure(7)
U1041SCP Invalid/Missing Data For Vehicle Speed(8)
U1059SCP Invalid/Missing Data For Transmission Range (PRNDL)(9)
U1073SCP Invalid/Missing Data For Engine Coolant(10)
U1123SCP Invalid/Missing Data For Odometer(8)
U1131SCP Invalid/Missing Data For Fuel System(1)
U1147SCP Invalid/Missing Data For Vehicle Security System(10)
(1) For testing procedure, see SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article. (2) Replace instrument cluster. (3) Repair passive anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in PASSIVE ANTI-THEFT SYSTEMS - LS article. (4) Using NGS tester, retrieve and record all continuous DTCs. Perform instrument cluster self-test. If DTC B1342 still exists, replace instrument cluster. (5) Repair lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMP SYSTEMS - LS article. (6) For testing procedure, see SELF-DIAGNOSTIC SYSTEM in STEERING COLUMN SWITCHES - LS article. (7) Configure instrument cluster. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace instrument cluster and repeat self-test. (8) Caused by Anti-Lock Brake System (ABS) control module. Using NGS tester, perform ABS control module self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES. (9) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair transmission control concern. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS. (10) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(1)For testing procedure, see SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article.
(2)Replace instrument cluster.
(3)Repair passive anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in PASSIVE ANTI-THEFT SYSTEMS - LS article.
(4)Using NGS tester, retrieve and record all continuous DTCs. Perform instrument cluster self-test. If DTC B1342 still exists, replace instrument cluster.
(5)Repair lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMP SYSTEMS - LS article.
(6)For testing procedure, see SELF-DIAGNOSTIC SYSTEM in STEERING COLUMN SWITCHES - LS article.
(7)Configure instrument cluster. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace instrument cluster and repeat self-test.
(8)Caused by Anti-Lock Brake System (ABS) control module. Using NGS tester, perform ABS control module self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES.
(9)Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair transmission control concern. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
(10)Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and repair powertrain control concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

INSTRUMENT CLUSTER DTC INDEX

DTCDescriptionPerform Test
B1205Message Center Switch Assembly Circuit Failure(2)
B1342ECU Defective(3)
B1676Battery Voltage Out Of Range(2)
B2477Module Configuration Failure(4)
U1020SCP Invalid/Missing Data For A/C Clutch(5)
U1027SCP Invalid/Missing Data For Engine RPM(6)
U1041SCP Invalid/Missing Data For Vehicle Speed(7)
U1053SCP Invalid/Missing Data For Steering/Steering Wheel(6)
U1059SCP Invalid/Missing Data For Transmission Range (PRNDL)(6)
U1065SCP Invalid/Missing Data For Primary ID Number 41(8)
U1073SCP Invalid/Missing Data For Engine Coolant(6)
U1075SCP Invalid/Missing Data For Engine Oil(5)
U1083SCP Invalid/Missing Data For Engine Systems Other(6)
U1098SCP Invalid/Missing Data For Vehicle Speed Control(6)
U1117SCP Invalid/Missing Data For Electrical Energy Management(5)
U1123SCP Invalid/Missing Data For Odometer(8)
U1135SCP Invalid/Missing Data For Ignition Switch/Starter(7)
U1136SCP Invalid/Missing Data For Telltales(9)
U1180SCP Invalid/Missing Data For Personalization Features(10)
U1181SCP Invalid/Missing Data For Personalization Features(10)
U1199SCP Invalid/Missing Data For External Access (Doors)(11)
U1217SCP Invalid/Missing Data For Exterior Light Outage(12)
U1218SCP Invalid/Missing Data For Exterior Lights(7)
U1222SCP Invalid/Missing Data For Interior Lights(7)
(1) The message center module is an integral part of the instrument cluster. (2) Repair message center system concern. See SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article. (3) Using NGS tester, retrieve and document all continuous DTCs. Perform instrument cluster self-test. If DTC B1342 is retrieved again, replace instrument cluster. (4) Configure instrument cluster. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace instrument cluster and repeat self-test. (5) Caused by Front Electronic Module (FEM). Using NGS tester, perform FEM self-test. (6) Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test. (7) Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test. (8) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test. (9) Caused by Front Electronic Module (FEM) and/or Powertrain Control Module (PCM). Using NGS tester, perform FEM and PCM self-tests. (10) Caused by Driver's Door Module (DDM). Using NGS tester, perform DDM self-test. (11) Caused by Front Electronic Module (FEM), Rear Electronic Module (REM) and/or Driver's Door Module (DDM). Using NGS tester, perform FEM, REM and DDM self-tests. (12) Caused by Front Electronic Module (FEM) and/or Rear Electronic Module (REM). Using NGS tester, perform FEM and REM self-tests.
(1)The message center module is an integral part of the instrument cluster.
(2)Repair message center system concern. See SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article.
(3)Using NGS tester, retrieve and document all continuous DTCs. Perform instrument cluster self-test. If DTC B1342 is retrieved again, replace instrument cluster.
(4)Configure instrument cluster. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace instrument cluster and repeat self-test.
(5)Caused by Front Electronic Module (FEM). Using NGS tester, perform FEM self-test.
(6)Caused by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test.
(7)Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test.
(8)Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test.
(9)Caused by Front Electronic Module (FEM) and/or Powertrain Control Module (PCM). Using NGS tester, perform FEM and PCM self-tests.
(10)Caused by Driver's Door Module (DDM). Using NGS tester, perform DDM self-test.
(11)Caused by Front Electronic Module (FEM), Rear Electronic Module (REM) and/or Driver's Door Module (DDM). Using NGS tester, perform FEM, REM and DDM self-tests.
(12)Caused by Front Electronic Module (FEM) and/or Rear Electronic Module (REM). Using NGS tester, perform FEM and REM self-tests.

MESSAGE CENTER MODULE DTC INDEX (1)

DTC (1)DescriptionPerform Test
P0703Brake Switch Input Malfunction(2)
P1565Speed Control Command Switches High/Out Of Range(2)
P1566Speed Control Command Switches Low/Out Of Range(2)
P1567New Generation Speed Control Drive Fault(2)
P1568New Generation Speed Control Servo Self-Test Failure(2)
P1572Brake On/Off Failure(2)
(1) Cruise control module is an integral part of the Powertrain Control Module (PCM). Codes listed in this table only apply to cruise control related malfunctions. For a complete list of PCM Diagnostic Trouble Codes (DTCs), see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. (2) Repair cruise control system concern. See SELF-DIAGNOSTIC SYSTEM in CRUISE CONTROL SYSTEMS - LS article.
(1)Cruise control module is an integral part of the Powertrain Control Module (PCM). Codes listed in this table only apply to cruise control related malfunctions. For a complete list of PCM Diagnostic Trouble Codes (DTCs), see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(2)Repair cruise control system concern. See SELF-DIAGNOSTIC SYSTEM in CRUISE CONTROL SYSTEMS - LS article.

POWERTRAIN CONTROL MODULE DTC INDEX

DTCDescriptionPerform Test
B1201Fuel Sender Circuit Failure(1)
B1300Power Door Lock Circuit Failure(2)
B1310Power Door Unlock Circuit Failure(2)
B1331Decklid Ajar Rear Door Circuit Failure(3)
B1335Right Rear Door Ajar Circuit Failure(3)
B1342ECU Defective(4)
B1483Brake Pedal Input Circuit Failure(3)
B1499Left Turn Signal Circuit Failure(3)
B1501Left Turn Signal Circuit Short To Voltage(3)
B1503Right Turn Signal Circuit Failure(3)
B1505Right Turn Signal Circuit Short To Voltage(3)
B1551Decklid Release Circuit Failure(2)
B1571Left Rear Door Ajar Circuit Failure(3)
B1676Battery Voltage Out Of Range(5)
B2172Inertia Switch Input Circuit Failure(6)
B2174Left Rear Window Remote Up Switch Short To Voltage(7)
B2178Left Rear Window Remote Down Switch Short To Voltage(7)
B2190Right Rear Window Remote Up Switch Short To Voltage(7)
B2194Right Rear Window Remote Down Switch Short To Voltage(7)
B2477Module Configuration Failure(8)
U1041SCP Invalid/Missing Data For Vehicle Speed(9)
U1059SCP Invalid/Missing Data For Transmission Range (PRNDL)(10)
U1218SCP Invalid/Missing Data For Exterior Lights(11)
(1) Repair fuel sending unit concern. See SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article. (2) Repair remote keyless entry system concern. See SELF-DIAGNOSTIC SYSTEM in REMOTE KEYLESS ENTRY SYSTEMS - LS article. (3) Repair lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMPS - LS article. (4) Using NGS tester, retrieve and document all continuous DTCs. Perform Rear Electronic Module (REM) self-test. If DTC B1342 is retrieved again, replace REM. (5) Repair active anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in ACTIVE ANTI-THEFT SYSTEMS - LS article. (6) Repair inertia fuel shutoff circuit as necessary. Perform TEST HC under SYSTEM TESTS in SELF-DIAGNOSTIC - EEC-V article in ENGINE PERFORMANCE. (7) Repair power window system concern. See SELF-DIAGNOSTIC SYSTEM in POWER WINDOWS - LS article. (8) Configure Rear Electronic Module (REM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace REM and repeat self-test. (9) Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES. (10) Caused by Powertrain Control Module (PCM) module. Using NGS tester, perform PCM self-test and repair transmission control concern. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSION. (11) Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test.
(1)Repair fuel sending unit concern. See SELF-DIAGNOSTIC SYSTEM in INSTRUMENT PANELS - LS article.
(2)Repair remote keyless entry system concern. See SELF-DIAGNOSTIC SYSTEM in REMOTE KEYLESS ENTRY SYSTEMS - LS article.
(3)Repair lighting system concern. See SELF-DIAGNOSTIC SYSTEM in AUTOLAMPS - LS article.
(4)Using NGS tester, retrieve and document all continuous DTCs. Perform Rear Electronic Module (REM) self-test. If DTC B1342 is retrieved again, replace REM.
(5)Repair active anti-theft system concern. See SELF-DIAGNOSTIC SYSTEM in ACTIVE ANTI-THEFT SYSTEMS - LS article.
(6)Repair inertia fuel shutoff circuit as necessary. Perform TEST HC under SYSTEM TESTS in SELF-DIAGNOSTIC - EEC-V article in ENGINE PERFORMANCE.
(7)Repair power window system concern. See SELF-DIAGNOSTIC SYSTEM in POWER WINDOWS - LS article.
(8)Configure Rear Electronic Module (REM). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace REM and repeat self-test.
(9)Caused by Anti-Lock Brake System (ABS) module. Using NGS tester, perform ABS self-test and repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES.
(10)Caused by Powertrain Control Module (PCM) module. Using NGS tester, perform PCM self-test and repair transmission control concern. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSION.
(11)Caused by instrument cluster. Using NGS tester, perform instrument cluster self-test.

REAR ELECTRONIC MODULE DTC INDEX

DTCDescriptionPerform Test
B1216Emergency & Road Side Assistance Switch Circuit Short To Ground(1)
B1342ECU Defective(2)
B1871Passenger's Air Bag Disable Module Fault(1)
B1874Cellular Phone Handset Not Present(1)
B1893GPS Antenna Circuit Open(1)
B2102GPS Antenna Circuit Short To Ground(1)
B2141NVM Configuration Failure(3)
B2477Module Configuration Failure(4)
(1) Repair vehicle emergency message system concern. (2) Using NGS tester, retrieve and document all continuous DTCs. Perform Remote Emergency Satellite Cellular Unit (RESCU) self-test. If DTC B1342 is retrieved again, replace RESCU. (3) Using NGS tester, retrieve and document all continuous DTCs. Perform Remote Emergency Satellite Cellular Unit (RESCU) self-test. If DTC B2141 is retrieved again, replace RESCU. (4) Configure Remote Emergency Satellite Cellular Unit (RESCU). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace RESCU and repeat self-test.
(1)Repair vehicle emergency message system concern.
(2)Using NGS tester, retrieve and document all continuous DTCs. Perform Remote Emergency Satellite Cellular Unit (RESCU) self-test. If DTC B1342 is retrieved again, replace RESCU.
(3)Using NGS tester, retrieve and document all continuous DTCs. Perform Remote Emergency Satellite Cellular Unit (RESCU) self-test. If DTC B2141 is retrieved again, replace RESCU.
(4)Configure Remote Emergency Satellite Cellular Unit (RESCU). See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. If module was configured correctly, replace RESCU and repeat self-test.

REMOTE EMERGENCY SATELLITE CELLULAR UNIT DTC INDEX

DTC (1)DescriptionPerform Test
B1342ECU Defective(2)
B1231RCM Internal Fault(3)
B1921RCM Crash Data Memory Full(3)
C1414Incorrect Vehicle Identification Code(3)
B1887Driver's Air Bag Circuit Shorted To Ground(3)
B1888Passenger's Air Bag Circuit Shorted To Ground(3)
B1916Driver's Air Bag Circuit Shorted To Voltage(3)
B1925Passenger's Air Bag Circuit Shorted To Voltage(3)
B1932Driver's Air Bag Circuit Resistance High(3)
B1933Passenger's Air Bag Circuit Resistance High(3)
B1934Driver's Air Bag Circuit Resistance Low(3)
B1935Passenger's Air Bag Circuit Resistance Low(3)
B2444Driver's Side Crash Sensor Internal Fault(3)
B2440Passenger's Side Crash Sensor Mounting Fault(3)
B2441Driver's Side Crash Sensor Mounting Fault(3)
B2445Passenger's Side Crash Sensor Internal Fault(3)
U2017Driver's Side Crash Sensor Communication Fault(3)
U2018Passenger's Side Crash Sensor Communication Fault(3)
B1993Driver's Side Air Bag Circuit Shorted To Ground(3)
B1997Passenger's Side Air Bag Circuit Shorted To Ground(3)
B1992Driver's Side Air Bag Circuit Shorted To Voltage(3)
B1996Passenger's Side Air Bag Circuit Shorted To Voltage(3)
B1994Driver's Side Air Bag Circuit Resistance High(3)
B1998Passenger's Side Air Bag Circuit Resistance High(3)
B1995Driver's Side Air Bag Circuit Resistance Low(3)
B1999Passenger's Side Air Bag Circuit Resistance Low(3)
B1877Driver's Pretensioner Circuit Resistance High(3)
B1885Driver's Pretensioner Circuit Resistance Low(3)
B1881Passenger's Pretensioner Circuit Resistance High(3)
B1886Passenger's Pretensioner Circuit Resistance Low(3)
B1878Driver's Pretensioner Circuit Short To Voltage(3)
B1879Driver's Pretensioner Circuit Short To Ground(3)
B1882Passenger's Pretensioner Circuit Short To Voltage(3)
B1883Passenger's Pretensioner Circuit Short To Ground(3)
B1892Air Bag Tone Warning Indicator Circuit Shorted To Ground Or Open(3)
B1891Air Bag Tone Warning Indicator Circuit Shorted To Voltage(3)
B1869Air Bag Indicator Inoperative(3)
B1870Air Bag Indicator Shorted To Voltage(3)
(1) DTCs are listed in order of importance. Repair DTCs in order listed. (2) Using NGS tester, retrieve and document all continuous DTCs. Perform Restraint Control Module (RCM) self-test. If DTC B1342 is retrieved again, replace RCM. (3) Repair supplemental restraint system concern. For information on supplemental restraint system DIAGNOSIS & TESTING, see AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.
(1)DTCs are listed in order of importance. Repair DTCs in order listed.
(2)Using NGS tester, retrieve and document all continuous DTCs. Perform Restraint Control Module (RCM) self-test. If DTC B1342 is retrieved again, replace RCM.
(3)Repair supplemental restraint system concern. For information on supplemental restraint system DIAGNOSIS & TESTING, see AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.

RESTRAINT CONTROL MODULE DTC INDEX

DTCDescriptionPerform Test
B1342ECU Defective(1)
B2162Data Mismatched Number 2(2)
B2168Unable To Confirm Unlock Condition(3)
B2169Unable To Confirm Lock Condition(3)
B2170Steering Column Lock Switch Circuit Failure(4)
(1) Using NGS tester, retrieve and document all continuous DTCs. Perform Steering Column Lock (SCL) module self-test. If DTC B1342 is retrieved again, replace SCL module. (2) Perform Steering Column Lock (SCL) module parameter reset. See PROGRAMMING in STEERING COLUMN SWITCHES - LS article. (3) Repair steering lock system concern. See SELF-DIAGNOSTIC SYSTEM in STEERING COLUMN SWITCHES - LS article. (4) Replace Steering Column Lock (SCL) module.
(1)Using NGS tester, retrieve and document all continuous DTCs. Perform Steering Column Lock (SCL) module self-test. If DTC B1342 is retrieved again, replace SCL module.
(2)Perform Steering Column Lock (SCL) module parameter reset. See PROGRAMMING in STEERING COLUMN SWITCHES - LS article.
(3)Repair steering lock system concern. See SELF-DIAGNOSTIC SYSTEM in STEERING COLUMN SWITCHES - LS article.
(4)Replace Steering Column Lock (SCL) module.

STEERING COLUMN LOCK MODULE DTC INDEX

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