B2159

DTC Troubleshooting: B2159

DTC B2159:

Driver's MPCS Unit Lost Communication With Keyless Access Control Unit (Keyless Access Lock 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 B2159 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.

5. Check for DTCs with the HDS.

Is DTC B1161 also indicated?

YES -

Do the keyless access control unit input test Keyless Access Control Unit Input Test/Replacement.

NO -

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