Pinpoint Test At: U0164:87

AT1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
Is an observable symptom present?
- Yes : GO to AT2
- 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.
AT2 CHECK FOR ANY RECENT PMI (PROGRAMMABLE MODULE INSTALLATION) CHANGES
- Check the vehicle service history for recent service actions related to the IPC or the HVAC module.
Have there been any recent service actions with either module?
- Yes : CARRY out a manual PMI on the applicable module using As-Built data.
- No : GO to AT3
AT3 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Using a diagnostic scan tool, perform a network test.
Does the HVAC module pass the network test?
- Yes : GO to AT4
- No : REFER to: COMMUNICATIONS NETWORK .
AT4 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : For DTC U3006: 16, GO to PINPOINT TEST AW
  For DTC U3006:17, GO to PINPOINT TEST AX
  
  For all other Diagnostic Trouble Codes (DTCs), REFER to DTC CHART: IPC .
- No : GO to AT5
AT5 PERFORM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE SELF-TEST
- Using a diagnostic scan tool, perform the HVAC module self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : For EMTC ,
  REFER to: CLIMATE CONTROL SYSTEM - VEHICLES WITH: ELECTRONIC MANUAL TEMPERATURE CONTROL (EMTC) .
  
  For EATC ,
  
  REFER to: CLIMATE CONTROL SYSTEM - VEHICLES WITH: ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) .
- No : GO to AT6
AT6 RECHECK THE IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)
NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.
- Clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Using a diagnostic scan tool, perform the IPC self-test.
Is DTC U0164:87 still present?
- Yes : GO to AT7
- No : GO to AT8
AT7 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION
- Ignition OFF.
- Disconnect and inspect the 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: HEATING, VENTILATION AND AIR CONDITIONING (HVAC) CONTROL MODULE .
- 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.
AT8 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
- Ignition OFF.
- Disconnect and inspect the IPC 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 IPC 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 IPC .
  REFER to: INSTRUMENT PANEL CLUSTER (IPC) .
- 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.