Is the concern still present?
Yes | CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PCM.REFER to: Powertrain Control Module (PCM) . |
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No | The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. |
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DIAGNOSIS AND TESTING > ELECTRONIC ENGINE CONTROLS > PINPOINT TESTS
> PINPOINT TEST C : U0164
DTC Fault Trigger Condition-PCM
DTC | Description | Fault Trigger Conditions |
U0164 | Lost Communication With HVAC Control Module | The PCM sets this DTC if data messages received from the FCIM through the GWM are missing. |
Normal Operation and Fault Conditions
The HVAC control module is housed in the FCIM. REFER to: MODULE COMMUNICATIONS NETWORK .
Possible Sources
FCIM module
BCM
PCM
DIAGNOSIS AND TESTING > ELECTRONIC ENGINE CONTROLS > PINPOINT TESTS
> PINPOINT TEST C : U0164 > PINPOINT TEST C : U0164
C1 VERIFY THE CUSTOMER CONCERN
Ignition ON.
Verify there is an observable symptom present.
Is an observable symptom present?
Yes | GO to C2 |
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Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.