DTC B1241 Body ECU Switch Circuit Diagnosis: Description

This DTC notifies how the switch works as follows:

If the DTC is not indicated when operating the back door power window switch or rear wiper and washer switch, it means failure of switch contact. If the DTC is indicated when not operating the back door power window switch or rear wiper and washer switch, it means the switch is stick. When something wrong is found by this diagnosis, inspect each switch. Replace the switch if there is a problem, or check the wire harness if there is no problem.

HINT:

For details of inspection, See PROBLEM SYMPTOMS TABLE  .

If the problem reoccurs even after replacement, replace the main body ECU.