B11C7

DTC B11C7: Passenger's MICU IG1 Line Input Error

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in 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 6 seconds or more.
4. Check for DTCs with the HDS.

Is DTC B11C7 indicated?

YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition and the charging system.

5. Check the DTCs with the HDS.

Is DTC B11C7 indicated with DTC U1282?

YES - Go to DTC U1282 troubleshooting. Multiplex Integrated Control System

NO - Go to step 6.

6. Turn the ignition switch to LOCK (0).
7. Disconnect passenger's under-dash fuse/relay box connector A (38P).
8. Turn the ignition switch to ON (II).
9. Measure the voltage between body ground and the passenger's under-dash fuse/relay box connector A (38P) No. 35 terminal.






Is there battery voltage?

YES - Faulty passenger's MICU; substitute a known-good passenger's under-dash fuse/relay box and recheck.

NO - Check the No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box. If the fuse is OK, check for an open in the wire between the driver's under-dash fuse/relay box and the passenger's under-dash fuse/relay box.