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 (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
- Before troubleshooting, make sure the No. 12 (7.5 A) fuse in the driver's under-dash fuse/relay box is OK.
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
- Wait for at least 6 seconds.
- 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 (see BATTERY TEST ) and the charging system.
- Check the DTCs with the HDS.
Is DTC B11C7 indicated with DTC U1282?
YES - Go to DTC U1282 TROUBLESHOOTING .
NO - Go to step 6.
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Measure the voltage between the passenger's under-dash fuse/relay box connector A (38P) terminal No. 35 and body ground.Fig 1: Measuring Voltage Between Passenger's Under-Dash Fuse/Relay Box Connector A (38P) Terminal No. 35 And Body Ground With Connector End View
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES - Faulty passenger's MICU; replace passenger's under-dash fuse/relay box (see PASSENGER'S UNDER-DASH FUSE/RELAY BOX (MICU) REMOVAL AND INSTALLATION ).
NO - Repair an open or high resistance in the wire between the passenger's under-dash fuse/relay box and the driver's under-dash fuse/relay box.