B1036

DTC Troubleshooting: B1036

DTC B1036:

IG1 Power Supply Circuit Malfunction

NOTE: If you are troubleshooting multiple DTC's, be sure to follow the instruction in B-CAN System Diagnosis Test Mode A. Troubleshooting - B-CAN System Diagnosis Test Mode A

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC B1036 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connection at the gauge control module 32P connector, and at under-dash fuse/relay box connector Q (16P). If the connections are good, check the battery condition Testing and Inspection and the charging system.�

5. Measure the voltage between the gauge control module 32P connector terminal No. 32 and body ground.





Is there battery voltage?

YES -

Faulty MICU or an open in the under-dash fuse/relay box internal circuit. Substitute a known-good under-dash fuse/relay box and recheck.�

NO -

Check for No. 22 (7.5 A) in the under-dash fuse/relay box. If the fuse is OK, check for an open in the wire between the under-dash fuse/relay box and the gauge control module, or repair a short in the wire between the under-dash fuse/relay box and the gauge control module.�