Preliminary Procedure
- Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Using NGS tester, perform DATA LINK DIAGNOSTIC TEST. If NGS tester does not communicate with vehicle, see MODULE COMMUNICATIONS NETWORK - PICKUP article to diagnose network. If NGS tester displays NO RESP/NOT EQUIP for Generic Electronic Module (GEM), perform TEST G: NO COMMUNICATION WITH GEM/CTM
under SYSTEM TESTS.
- If NGS tester displays SYSTEM PASSED for GEM/CTM, retrieve and record continuous DTCs. Erase continuous DTCs. Perform GEM/CTM on-demand self-test diagnostics using NGS tester. If any GEM/CTM DTCs are retrieved, perform appropriate test under SYSTEM TESTS. See GENERIC ELECTRONIC MODULE (GEM) DTC IDENTIFICATION
table. If no DTCs are retrieved, perform appropriate test under SYMPTOM TESTS. See SYMPTOM CHART
table under TROUBLE SHOOTING.
GENERIC ELECTRONIC MODULE (GEM) DTC IDENTIFICATION
| DTC |
Description |
Perform Test |
| B1431 |
Wiper Run/Park Relay Ckt Failure |
A |
| B1432 |
Wiper Run/Park Relay Short To Voltage |
A |
| B1434 |
Wiper Hi/Low Relay Ckt Failure |
|
| B1436 |
Wiper Hi/Low Relay Ckt Short To Voltage |
C |
| B1438 |
Wiper/Washer Switch Input Ckt Failure |
, |
| B1441 |
Wiper/Washer Switch Input Ckt Short To Ground |
, |
| B1446 |
Wiper Park Sense Ckt Failure |
D |
| B1450 |
Interval Delay Switch Input Ckt Failure |
, |
| B1453 |
Interval Delay Switch Input Ckt Short To Ground |
, |
| B1458 |
Washer Pump Relay Ckt Failure |
E |
| B1460 |
Washer Pump Motor Relay Coil Short To Voltage |
E |
| B1466 |
Wiper Speed Not Switching |
C |
| B1467 |
Wiper Hi/Low Speed Ckt Motor Short To Voltage |
|
| B1473 |
Wiper Low Speed Motor Ckt Failure |
|
| B1476 |
Wiper High Speed Motor Ckt Failure |
|
| B1840 |
Wiper Power Ckt Failure |
A |