Pinpoint Test O : U0155:87
- O1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
Is an observable symptom present?
Yes GO to O2. No The system is operating normally at this time. The DTC may have been set due to heavy network traffic or an intermittent fault condition. - O2 CHECK THE COMMUNICATION NETWORK
- Using a scan tool, perform a network test
Does the IPC pass the network test?
Yes GO to O3. No REFER to REFER to Module Communications Network . - O3 RETRIEVE THE DTCs FROM THE IPC SELF-TEST
- Using a scan tool, perform the IPC self-test.
Are any non-network DTCs recorded?
Yes REFER to REFER to Instrumentation, Message Center, and Warning Chimes . No GO to O4. - O4 RECHECK THE IPM-A DTCs
- Clear the DTCs from the IPM-A.
- Wait 10 seconds.
- Check the IPM-A DTCs.
Is DTC U0155:87 recorded?
Yes GO to O5. No The system is operating normally at this time. The DTC may have been set due to heavy network traffic or an intermittent fault condition. - O5 CHECK FOR DTC U0155:00 SET IN OTHER MODULES
- Clear all DTCs.
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds.
- Retrieve the CMDTCs from all modules.
Is DTC U0155:00 set in the RCM or the C-CM ?
Yes Refer to IPC Hardware Testing . No INSTALL a new interior auto-dimming mirror. Refer to Interior Rear View Mirror .