Pinpoint Test BG : DTC U023A:00

BG1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify that there is an observable symptom present.

Is an observable symptom present?

Yes	GO to BG2.
No	The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

BG2 CHECK THE COMMUNICATION NETWORK

Using a scan tool, perform a network test.

Does the IPM-A pass the network test?

Yes	GO to BG3.
No	REFER to Module Communications Network , The Image Processing Module - A (IPM-A) Does Not Respond To The Scan Tool.

BG3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

Using a scan tool, perform the IPC self-test.

Is DTC U3003:16 or DTC U3003:17 recorded?

Yes	For DTC U3003:16, GO to Pinpoint Test BJ . For DTC U3003:17, GO to Pinpoint Test BK .
No	GO to BG4.

BG4 RECHECK THE IPC DTCs

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the PMI may not have been carried out.

Using a scan tool, clear the DTCs.

Repeat the IPC self-test.

Is DTC U023A:00 still present?

Yes	INSTALL a new interior auto-dimming mirror. REFER to Rear View Mirrors . CLEAR the DTCs. REPEAT the IPC self-test. If DTC U023A:00 is still present, Refer to IPC Hardware Testing .
No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.