B1541

DTC B1541: Back-Up Power Supply Circuit Malfunction

Wiring Diagram

Wiring Diagram:

DTC Detecting Condition and Trouble Area

DTC Detecting Condition And Trouble Area:

NOTE: When checking DTC after connecting battery cable, be sure to turn ignition switch from OFF to ON and from ON to OFF at least once, or DTC B1541 will be detected.

DTC Troubleshooting

Step 1-3: