B1222

DTC B1222 Driver Side Door Lock Switch Circuit Malfunction

DESCRIPTION

This DTC notifies how the switch works as follows:
If the DTC is not output when operating the switch, this means there is a failure of the switch contact. If the DTC is output when not operating the switch, this means the switch is stuck. When a malfunction is found using this diagnosis, inspect each switch. Then, replace the switch if there is a problem, or check the wire harness if there is no problem.

DTC Detection Condition:

INSPECTION PROCEDURE

HINT: Refer to switch inspection.

Door Key Lock / Unlock Switch Circuit

Wiring Diagram:

HINT: When using the intelligent tester, start from *1. When not using the intelligent tester, start from *2.

Step 1-3: