Pinpoint Test W : DTC U0140

W1 VERIFY CUSTOMER CONCERN

Ignition ON.

Verify that there is an observable symptom present.

Is an observable symptom present?

Yes	GO to W2.
No	The system is operating normally at this time. The DTC may have been set due to high network traffic or intermittent fault condition.

W2 CHECK THE COMMUNICATION NETWORK

Using a scan tool, carry out the network test.

Does the BCM pass the network test?

Yes	GO to W3.
No	REFER to Module Communications Network , The Body Control Module(BCM) Does Not Respond To The Scan Tool.

W3 RETRIEVE THE RECORDED DTCs FROM THE SELF-TEST

Check the recorded result from the DDM self-test.

Is DTC B1317 or DTC B1318 recorded?

Yes	For DTC B1317, GO to Pinpoint Test U . For DTC B1318, GO to Pinpoint Test V .
No	GO to W4.

W4 RECHECK THE DDM DTCs

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

Using a scan tool, clear the DTCs and repeat the DDM self-test.

Is DTC U0140 still present?

Yes	GO to W5.
No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or intermittent fault condition.

W5 CHECK FOR DTC U0140 IN OTHER MODULES

Using a scan tool, clear all DTCs.

Ignition OFF.

Ignition ON.

Wait 30 seconds.

Using a scan tool, retrieve the continuous memory DTCs from all modules.

Is DTC U0140 set in other modules?

Yes	Refer to BCM Guided Routine Testing .
No	INSTALL a new DDM. REFER to Driver Door Module (DDM) .