B1214

DTC B1214 Door system communication bus malfunction (+B short)

CIRCUIT DESCRIPTION

If +B or GND short is detected on door system communication bus, instrument panel bus will be separated it by bus cut relays in Body ECU No.1 and Body ECU No.2. This is to prevent communication stop in the instrument panel bus. Or in other words, communication continues in instrument panel bus.

Wiring Diagram:

Step 1 - 2:

Step 3 - 4:

Step 5 - 6:

Step 7 - 8:

Step 9 - 10:

Step 11 - 12:

INSPECTION PROCEDURE