FixVault

Preliminary Procedure

  1. Verify customers complaint by operating door lock system. Check for obvious signs of mechanical or electrical damage. Check for blown fuse(s), loose or corroded connectors, or damaged wiring harness. Check for binding latch and linkage. Check for opens in fuses No. 12 (10-amp) and No. 19 (10-amp). Repair or replace components as necessary.
  2. If all components are okay, connect NGS tester to DLC located below instrument panel. Using NGS tester, perform DATA LINK DIAGNOSTIC TEST. If NGS tester displays CKT 70=00000000F or ALL MODULES NO RESP/NOT EQUIP, see MODULE COMMUNICATIONS NETWORK article to diagnose network concern. If NGS tester displays NO RESP/NOT EQUIP for Remote Anti-Theft Personality Module (RAP), perform TEST A: NO COMMUNICATION WITH RAP MODULE  under SYSTEM TESTING. If NGS tester displays NO RESP/NOT EQUIP for Generic Electronic Module (GEM), perform TEST B: NO COMMUNICATION WITH GEM MODULE  under SYSTEM TESTING.
  3. If NGS tester displays SYSTEM PASSED, retrieve and record continuous DTCs. Erase continuous DTCs. Perform self-test diagnostics for GEM using NGS tester. If GEM DTCs are retrieved, see GENERIC ELECTRONIC MODULE (GEM) DTC DEFINITIONS table to continue diagnosis. If RAP DTCs are retrieved, see REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE DTC INDEX  to continue diagnosis. If no DTCs are retrieved, perform appropriate symptom test under SYSTEM TESTING  .
GENERIC ELECTRONIC MODULE (GEM) DTC DEFINITIONS

DTC Source Module Description
B1243 GEM (1) Express Window Down Switch Ckt Failure
B1244 GEM (2) Rear Wiper Relay Coil Ckt Failure
B1245 GEM (2) Rear Wiper Relay Coil Short To Battery
B1302 GEM (1) Accessory Delay Relay Coil Ckt Failure
B1304 GEM (1) Accessory Delay Relay Coil Ckt Open Or Short To Battery
B1309 GEM (3) Power Door Lock Ckt Failure
B1312 GEM (4) Headlight Ckt Short To Battery Power
B1313 GEM (5) Battery Saver Relay Coil Ckt Failure
B1315 GEM (5) Battery Saver Relay Coil Ckt Short To Battery
B1317 GEM (5) Battery Voltage High
B1318 GEM (5) Battery Voltage Low
B1322 GEM (5) Left Front Door Ajar Ckt Short To Ground
B1323 GEM (6) Door Ajar Light Ckt Failure
B1325 GEM (6) Door Ajar Light Ckt Short To Battery
B1330 GEM (5) Right Front Door Ajar Ckt Short To Ground
B1334 GEM (5) Liftgate Ajar Rear Door Ckt Short To Ground
B1335 GEM (5) Sliding Door Ajar Ckt Failure
B1341 GEM (7) Power Door Unlock Ckt Short To Ground
B1342 GEM (2) ECU Is Defective
B1345 GEM (1) Heated Backlite Input Ckt Short To Ground
B1347 GEM (1) Heated Backlite Relay Ckt Failure
B1349 GEM (1) Heated Backlite Relay Ckt Short To Battery
B1352 GEM (4) Ignition Key-In Ckt Failure
B1355 GEM (8) Ignition Run Ckt Failure
B1359 GEM (8) Ignition RUN/ACC Ckt Failure
B1365 GEM (8) Ignition START Ckt Failure
B1371 GEM (5) Illuminated Entry Relay Ckt Failure
B1373 GEM (5) Interior Light Relay Coil Ckt Short To Battery
B1392 GEM (9) Memory Door Lock Relay Coil Ckt Failure
B1394 GEM (9) Memory Door Lock Relay Coil Short To Battery
B1398 GEM (1) Power Window 1-Touch Window Relay Ckt Failure
B1400 GEM (1) Power Window 1-Touch Window Relay Coil Ckt Short To Battery
B1404 GEM (1) Driver Door Power Window Down Ckt Open
B1405 GEM (1) Driver Door Power Window Down Ckt Short To Battery
B1408 GEM (1) Driver Door Power Window Up Ckt Short To Battery
B1410 GEM (1) Driver Door Power Window Motor Ckt Failure
B1426 GEM (6) Seat Belt Light Output Ckt Short To Battery
B1428 GEM (6) Seat Belt Light Output Ckt Failure
B1431 GEM (2) Wiper Brake/Run Relay Ckt Failure
B1432 GEM (2) Wiper Brake/Run Relay Short To Battery
B1434 GEM (2) Wiper Hi/Low Speed Relay Ckt Failure
B1436 GEM (2) Wiper Hi/Low Speed Relay Ckt Short To Battery
B1438 GEM (2) Wiper Mode Select Switch Ckt Failure
B1441 GEM (2) Wiper Mode Select Switch Input Short To Ground
B1446 GEM (2) Wiper Park Sense Ckt Failure
B1448 GEM (2) Wiper Park Sense Ckt Short To Battery
B1450 GEM (2) Wiper/Wash Interval Delay Switch Input Ckt Failure
B1453 GEM (2) Wiper/Wash Interval Delay Switch Input Short To Ground
B1456 GEM (2) Low Washer Fluid Indicator Output Ckt Short To Battery
B1458 GEM (2) Wiper/Washer Pump Motor Relay Ckt Failure
B1460 GEM (2) Wiper/Washer Pump Motor Relay Coil Short To Battery
B1462 GEM (6) Seat Belt Switch Ckt Failure
B1466 GEM (2) Wiper Hi/Low Speed Not Switching
B1467 GEM (2) Wiper Motor Hi/Low Speed Ckt Short To Battery
B1473 GEM (2) Wiper Motor Low Speed Ckt Failure
B1475 GEM (1) Delayed Accessory Relay Contacts Short To Battery
B1476 GEM (2) Wiper Motor High Speed Ckt Failure
B1501 GEM (4) Left Turn Signal Switch Short To Battery
B1505 GEM (4) Right Turn Signal Switch Short To Battery
B1610 GEM (5) Illuminated Entry Input Request Ckt Short To Ground
B1613 GEM (2) Rear Wiper Mode Select Switch Short To Battery
B1629 GEM (2) PRNDL Reverse Input Short To Battery
B1896 GEM (5) Front Door(s) Ajar Output Short To Battery
B1982 GEM (10) Driver Door Unlock Relay Coil Ckt Failure
B1983 GEM (11) Driver Door Unlock Relay Coil Short To Battery
C1724 GEM (12) Height Sensor Power Ckt Failure
C1763 GEM (12) Height Sensor High Signal Short To Ground
C1768 GEM (12) Height Sensor Low Signal Short To Ground
C1770 GEM (12) Air Suspension Vent Solenoid Ckt Failure
C1772 GEM (12) Air Suspension Vent Solenoid Short To Battery
C1790 GEM (12) Left Rear Air Spring Solenoid Ckt Failure
C1792 GEM (12) Left Rear Air Spring Solenoid Short To Battery
C1795 GEM (12) Right Rear Air Spring Solenoid Ckt Failure
C1797 GEM (12) Right Rear Air Spring Solenoid Short To Battery
C1790 GEM (12) Left Rear Air Spring Solenoid Ckt Failure
C1813 GEM (12) Air Suspension Vent Request Exceeds Maximum Timing
C1818 GEM (12) Air Compressor Request Exceeds Maximum Timing
C1830 GEM (12) Air Compressor Relay Coil Ckt Failure
C1832 GEM (12) Air Compressor Relay Coil Short To Battery
C1840 GEM (12) Air Suspension Service Switch Ckt Failure
C1850 GEM (12) Air Suspension Warning Indicator Ckt Failure
C1852 GEM (12) Air Suspension Warning Indicator Short To Battery
P0500 GEM (12) Vehicle Speed Signal Ckt Failure
(1) See POWER WINDOWS article for testing procedures.
(2) See WIPER/WASHER SYSTEMS article for testing procedures.
(3) Perform TEST B1309  under DIAGNOSTIC TROUBLE CODE TESTING.
(4) Test wiring for opens and/or shorts and repair as necessary. See appropriate wiring diagram in WARNING SYSTEMS article.
(5) Test wiring for opens and/or shorts and repair as necessary. See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.
(6) See INSTRUMENT PANELS article for testing procedures.
(7) Perform TEST B1341  under DIAGNOSTIC TROUBLE CODE TESTING.
(8) See STEERING COLUMN SWITCHES article for testing procedures.
(9) See DOOR LOCKS - POWER article for testing procedures.
(10) Perform TEST B1982  test under DIAGNOSTIC TROUBLE CODE TESTING.
(11) Perform TEST B1983  test under DIAGNOSTIC TROUBLE CODE TESTING.
(12) See ELECTRONIC article in the SUSPENSION section for testing procedures.