Pinpoint Test BJ : U0164:00
- BJ1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
Is an observable symptom present?
Yes GO to BJ2 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. - BJ2 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Using a scan tool, perform the network test.
Does the HVAC module pass the network test?
Yes GO to BJ3 No REFER to: Communications Network . - BJ3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE SELF-TEST
- Using a scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from the HVAC module.
Is DTC U3006:16 or U3006:17 recorded?
Yes REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) . Refer to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) . No GO to BJ4 - BJ4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a scan tool, perform the IPC self-test.
Are any DTC recorded?
Yes For DTC U3006:16, GO to Pinpoint Test BS For DTC U3006:17, GO to Pinpoint Test BU No GO to BJ5 - BJ5 RECHECK THE IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)
- Clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Repeat the IPC self-test.
Is DTC U0164:00 still present?
Yes INSTALL a new HVAC module. Refer to: Heating, Ventilation and Air Conditioning (HVAC) Control Module . CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If DTC U0164:00 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.