LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> FJ Cruiser RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Multiplex Communication System (Diagnostics - Introduction) >> Multiplex Communication System >> Diagnostic Trouble Code Chart >> Diagnostic Trouble Code Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Chart

HINT: 

If a malfunction code is displayed during the DTC check, check the circuit corresponding to the code in the table below. Proceed to the service information given for the circuit.

MULTIPLEX COMMUNICATION SYSTEM

DTC Code Detection Item Trouble area See
B1214 Short to B+ in Door System Communication Bus Malfunction 1. Back door ECU
2. Main Body ECU
3. Wire Harness
Refer to DTC B1214: Short to B+ in Door System Communication Bus Malfunction; DTC B1215: Short to GND in Door System Communication Bus Malfunction
B1215 Short to GND in Door System Communication Bus Malfunction 1. Back door ECU
2. Main Body ECU
3. Wire Harness
Refer to DTC B1214: Short to B+ in Door System Communication Bus Malfunction; DTC B1215: Short to GND in Door System Communication Bus Malfunction
B1287 Back Door ECU Communication Stop 1. Back door ECU
2. Wire Harness
Refer to DTC B1287: Back Door ECU Communication Stop