B1222

B1222 - Door Lock Switch Circuit on Driver Door

CIRCUIT DESCRIPTION

DTC Detecting Condition Part 1:

DTC Detecting Condition Part 2:

These DTC notify how switch, works as follows:
If DTC is not output when operating switch, it means failure of switch contact. If DTC is output when not operating switch, it means stick of switch. When something wrong is found by this diagnosis, inspect each switch. Then, replace the switch if there is a problem, or check the wire harness if there is no problem.