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Pinpoint Test H: DTC (Diagnostic Trouble Code) U0164:00

  1. H1 VERIFY THE CUSTOMER CONCERN 
    • Ignition ON.
    • Verify there is an observable symptom present.

    Is an observable symptom present? 

    1. Yes  : GO to H2 
    2. 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.
  2. H2 CHECK THE COMMUNICATION NETWORK 
    • Using a diagnostic scan tool, perform a network test.

    Does the HVAC module pass the network test? 

    1. Yes  : GO to H3 
    2. No  : DIAGNOSE no communication with the HVAC  module.

      REFER to: COMMUNICATIONS NETWORK .

  3. H3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE BODY CONTROL MODULE (BCM) SELF-TEST 
    • Using a diagnostic scan tool, perform the BCM  self-test.

    Is DTC U3003:16 or DTC U3003:17 recorded? 

    1. Yes  : For DTC  U3003:16, GO to PINPOINT TEST O 

      For DTC  U3003:17, GO to PINPOINT TEST P 

    2. No  : GO to H4 
  4. H4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE HEATING, VENTILATION AND AIR CONDITIONING (HVAC) MODULE SELF-TEST 
    • Using a diagnostic scan tool, perform the HVAC  self-test.

    Is DTC U3006:16 or DTC U3006:17 recorded? 

    1. Yes  : REFER to: CLIMATE CONTROL SYSTEM - VEHICLES WITH: ELECTRONIC MANUAL TEMPERATURE CONTROL (EMTC) .

      REFER to: CLIMATE CONTROL SYSTEM - VEHICLES WITH: DUAL AUTOMATIC TEMPERATURE CONTROL (DATC) .

    2. No  : GO to H5 
  5. H5 RECHECK THE BODY CONTROL MODULE (BCM) DIAGNOSTIC TROUBLE CODES (DTCS) 
    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.
    • Clear the Diagnostic Trouble Codes (DTCs).
    • Ignition OFF.
    • Wait 10 seconds.
    • Ignition ON.
    • Using a diagnostic scan tool, perform the BCM  self-test.

    Is DTC U0164:00 still present? 

    1. Yes  : INSTALL a new HVAC  module.

      REFER to: HEATING, VENTILATION AND AIR CONDITIONING (HVAC) CONTROL MODULE .

      CLEAR the DTC  . REPEAT the BCM  self-test. If DTC  U0164:00 is still present, GO to H6 

    2. 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.
  6. H6 CHECK FOR CORRECT BODY CONTROL MODULE (BCM) OPERATION 
    • Disconnect and inspect all BCM  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
    • Connect the BCM  connectors. Make sure they seat and latch correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    1. 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 BCM  .

      REFER to: BODY CONTROL MODULE (BCM) .

    2. 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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