DTC B1005: MICU Lost Communication with Relay Control Module (RM Message)
WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
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
).
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0), and then back ON (II).
- Wait for 6 seconds or more.
- Check for DTCs with the HDS.
Is DTC B1005 indicated?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections between the MICU and the relay control module.
- Check for DTCs with the HDS.
Are DTCs B1158, B1959, B2162, and B2970 also indicated with B1005?
YES - Do the relay control module input test (see RELAY CONTROL MODULE INPUT TEST ).
NO - Do the MICU input test (see MICU INPUT TEST ).