B1058

DTC B1006: MICU Lost Communication with Door Multiplex Control Unit (Door Lock Switch Message)

NOTE: If you are troubleshooting multiple DTC's, be sure to follow the instructions in B-CAN system diagnosis Test Mode A.

1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF, and then back ON.
3. Check for DTCs using the HDS.

Is DTC B1006 indicated?

YES - Go to step 4.

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

4. Check for DTCs in the gauge control module and relay module using the HDS.

Are DTCs B1160 and B1058 also indicated?

YES - Go to Door Multiplex Control Unit Input Test. Door Multiplex Control Unit Input Test

NO - Check for an open, or a short to power or ground in the communication circuit between the MICU and the door multiplex control unit. If the circuit is OK, replace the MICU. If the circuit is bad, repair the open, or short to power or ground.

B1055: Relay Control Module lost communication with MICU

B1056: Relay Control Module lost communication with MICU

B1057: Relay Control Module lost communication with MICU (door switch message)

B1058: Relay Control Module lost communication with Door Multiplex Control Unit (door lock switch message)

B1059: Relay Control Module lost communication with Door Multiplex Control Unit (panic message)

B1060: Relay Control Module lost communication with Gauge Control Module (VSP/NE message)

B1061: Relay Control Module lost communication with Gauge Control Module (A/T message)

B1062: Relay Control Module lost communication with Combination Switch Control Unit (headlight switch message)

B1063: Relay Control Module lost communication with Combination Switch Control Unit (wiper switch message)

1. Clear the DTCs using the Honda Diagnostic System (HDS).
2. Cycle the ignition switch OFF then ON.
3. Check for DTCs by selecting the DTCs MENU (DTCs) from the HDS.

Is DTC B1055, B1056, B1057, B1058, B1059, B1060, B1061, B1062 and/or B1063 indicated?

YES - Go to step 4.

NO - Intermittent failure, the B-CAN communication line is OK at this time.

4. Check for DTCs other than those listed.

Are any other DTCs present?

YES - Go to step 5.

NO - Perform Relay Control Module Input Test. Relay Control Module Input Test




5. Find the chart that contains at least one retrieved DTC in column A and one retrieved DTC in column B. Perform the input test for the ECU listed in that chart.
If no DTC from column B is found then continue to Relay Control Module input test.