Preliminary Procedure
Remote keyless entry system utilizes a self-diagnostic system which may store a Diagnostic Trouble Code (DTC) if a problem exists in the system. DTCs may be retrieved using New Generation Star (NGS) tester or other OBD-II compliant scan tool and Data Link Connector (DLC). Before performing any testing, perform TROUBLE SHOOTING
.
- Connect scan tool to Data Link Connector (DLC) located below instrument panel. Using scan tool, perform DATA LINK DIAGNOSTIC TEST. If scan tool displays CKT 914, CKT 915 or CKT 70=ALL ECUS NO RESP/NOT EQUIP, see
MODULE COMMUNICATIONS NETWORK - CROWN VICTORIA & GRAND MARQUIS article to diagnose network fault. If scan tool displays NO RESPONSE/NOT EQUIPPED for Driver Door Module (DDM), perform TEST A: NO COMMUNICATION WITH DDM
under SYSTEM TESTS. If scan tool displays NO RESPONSE/NOT EQUIPPED for Lighting Control Module (LCM), perform TEST B: NO COMMUNICATION WITH LCM
under SYSTEM TESTS.
- If scan tool displays SYSTEM PASSED, retrieve and record continuous DTCs. Erase continuous DTCs. Perform self-test for DDM and LCM using scan tool. If DDM DTCs are retrieved, see DRIVER DOOR MODULE (DDM) DTC INDEX
table to continue diagnosis. If LCM DTCs are retrieved, see LIGHTING CONTROL MODULE (LCM) DTC INDEX
table to continue diagnosis. Codes listed in these tables are only for testing covered in this article. For complete DTC listing, see
MODULE COMMUNICATIONS NETWORK - CROWN VICTORIA & GRAND MARQUIS article. If no DTCs are retrieved, perform appropriate system test. See SYMPTOM INDEX
table under SYSTEM TESTS.
DRIVER DOOR MODULE (DDM) DTC INDEX
| DTC |
Description |
Perform Test |
| B1322 |
Driver Door Ajar Circuit Short To Ground |
D |
| B1342 |
ECU Defective |
|
| B1352 |
Ignition Key In Circuit Failure |
F |
| B1396 |
Power Door Lock Circuit Short To Battery |
E |
| B1397 |
Power Door Unlock Circuit Short To Battery |
K |
| B1525 |
Keyless Entry Short To Battery |
G |
| B1553 |
Luggage Compartment Lid Release Short To Battery |
H |
| B1751 |
Park/Neutral Switch Short To Battery |
I |
| B2425 |
Remote Keyless Entry Out Of Synchronization |
J |
LIGHTING CONTROL MODULE (LCM) DTC INDEX
| DTC |
Description |
Perform Test |
| B1300 |
Power Door Lock Circuit Failure |
K |
| B1310 |
Power Door Unlock Circuit Failure |
K |
| B1319 |
Driver Door Ajar Circuit Failure |
L |
| B1322 |
Driver Door Ajar Circuit Short To Ground |
L |
| B1342 |
ECU Defective |
|
| B1396 |
Power Door Lock Circuit Short To Voltage |
K |
| B1397 |
Power Door Unlock Circuit Short To Voltage |
K |
| B1677 |
Panic Alarm Input Circuit Failure |
M |
| B1679 |
Panic Alarm Input Short To Voltage |
M |