Pinpoint Test Ad : U0140:00
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
- AD1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
Is an observable symptom present?
Yes GO to AD2 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. - AD2 CHECK THE COMMUNICATION NETWORK
- Using a diagnostic scan tool, perform the network test.
Does the BCM pass the network test?
Yes GO to AD3 No REFER to: Communications Network . - AD3 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, perform the BCM self-test.
Are any voltage related Diagnostic Trouble Codes (DTCs) present?
Yes REFER to: Body Control Module (BCM) . No GO to AD4 - AD4 RECHECK THE DDM (DRIVER DOOR MODULE) OR PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (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 diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the DDM/ PDM self-test.
Is DTC U0140:00 still present?
Yes GO to AD5 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. - AD5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00 SET IN OTHER MODULES
- Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs).
- Ignition OFF.
- Ignition ON.
- Wait 30 seconds.
- Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.
Is DTC U0140:00 set in other modules?
Yes BCM guided routine is not applicable for this vehicle and market. Replace the component that was faulted through service information diagnosis. No INSTALL a new DDM or PDM as necessary. REFER to: Driver Door Module (DDM) . REFER to: Passenger Door Module (PDM) .