Is DTC U0140:00 set in the ACM, APIM, DACMC, or FCIM?

Ignition OFF. Ignition ON. Wait at least 10 seconds. Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Yes	GO to AM3
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.

AM3 CHECK THE BCM (BODY CONTROL MODULE) FOR BATTERY VOLTAGE OUT-OF-RANGE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, perform the BCM self-test.

Are any low or high voltage Diagnostic Trouble Codes (DTCs) recorded in the BCM?

Yes	• For DTC U3006:16, REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing). See U3006:16. • For DTC U3006:17, REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing). See U3006:17. • For DTC U3006:1C, REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing). See U3006:1C.
No	GO to AM4

Yes

• For DTC U3006:16, REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing). See U3006:16.

• For DTC U3006:17, REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing). See U3006:17.

• For DTC U3006:1C, REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing). See U3006:1C.

GO to AM4

AM4 CHECK FOR BATTERY VOLTAGE OUT-OF-RANGE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, perform the self-test for the following modules:

ACM APIM DACMC FCIM

Are any low or high voltage Diagnostic Trouble Codes (DTCs) recorded in the ACM, APIM, DACMC, or FCIM?

Yes	• For DTC U3003:16, GO to Pinpoint Test AW • For DTC U3003:17, GO to Pinpoint Test AX
No	GO to AM5

Yes

• For DTC U3003:16, GO to Pinpoint Test AW

• For DTC U3003:17, GO to Pinpoint Test AX

GO to AM5

AM5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00 SET IN MULTIPLE MODULES

Review the recorded results from the self-test.

Is DTC U0140:00 set in more than one module?

Yes GO to AM6 No • If there is an observable symptom,

Original table alignment retained · Scroll horizontally if needed

Source reference 4519

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.