Pinpoint Test F : DTC (Diagnostic Trouble Code) U0164:00
- F1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
Is an observable symptom present?
Yes GO to F2 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. CLEAR the DTC. - F2 CHECK THE COMMUNICATION NETWORK
- Using a diagnostic scan tool, perform a network test.
Does the HVAC module pass the network test?
Yes GO to F3 No DIAGNOSE no communication with the HVAC module. REFER to: Communications Network - F3 CHECK THE BCM (BODY CONTROL MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Using a diagnostic scan tool, check the BCM Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Is DTC U3003:16 or DTC U3003:17 recorded?
Yes For DTC U3003:16, GO to Pinpoint Test N For DTC U3003:17, GO to Pinpoint Test O No For vehicle equipped with DATCGO to F4 For vehicle equipped with EATC, GO to F5 - F4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE SELF-TEST
- Using a diagnostic scan tool, perform the HVAC module self-test.
Is DTC U3006:16 or DTC U3006:17 recorded?
Yes REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) No GO to F5 - F5 RECHECK THE BCM (BODY CONTROL MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI or the PMI may not have been carried out.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Using a diagnostic scan tool, check the BCM Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Is DTC U0164:00 still present?
Yes GO to F6 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. CLEAR the DTC. - F6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0164:00 SET IN OTHER MODULES
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds.
- Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Is DTC U0164:00 set in any other module?
Yes GO to F7 No REFER to The BCM Does Not Respond To The Diagnostic Scan Tool to DIAGNOSE the CAN circuits. REFER to: Communications Network - F7 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION
- Disconnect and inspect all HVAC module connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the HVAC module connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
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 HVAC module. REFER to: Climate Control Assembly 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.