B1905

DTC Troubleshooting: 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 Troubleshooting - 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 to ON (II).

3. Wait for at least 6 seconds.

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 B1015, B1065, B1182, and/or B1356 also indicated?

YES -

Do the driver's MPCS unit input test Drivers MPCS Unit Input Test.�

NO -

Do the immobilizer-keyless control unit input test Immobilizer-Keyless Control Unit Input Test.�