B1905

DTC B1905: Immobilizer-Keyless Control Unit Lost Communication with Driver's MPCS Unit (DRLOCKSW Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0), and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS.

Is DTC B1905 indicated?

YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections between the immobilizer-keyless control unit and the driver's MPCS unit.

5. Check for DTCs with the HDS.

Are DTCs B1013, B1065, B1182, and/or B1356 also indicated?

YES - Do the driver's MPCS unit input test.

NO - Do the immobilizer-keyless control unit input test.