B1241

DTC B1241 Body ECU Switch Circuit Diagnosis

DESCRIPTION

DTC Detection Condition:

DTC B1241 output when: 1) the door control switches of the master switch or the door control switch on the passenger side door are pressed, or 2) when the door lock and unlock switch (door key-linked switch) built into the front door lock LH is used. DTC B1241 disappears when the switches are not pressed or used.
A malfunction is occurring when:
- The DTC is output when a switch is not operated. The switch may be stuck ON.
- The switch is not output when a switch is being operated. The switch's contact may be faulty.

Wiring Diagram:

Step 1:

Step 1 (Continued)-3:

Step 4-5:

Step 6-7:

Step 8-9:

Step 9 (Continued):

INSPECTION PROCEDURE