Pinpoint Test AU: U0146:00

AU1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
Is an observable symptom present?
- Yes : GO to AU2
- 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.
AU2 CHECK THE COMMUNICATION NETWORK
- Using a diagnostic scan tool, perform the network test.
Does the GWM pass the network test?
- Yes : GO to AU3
- No : REFER to: COMMUNICATIONS NETWORK .
AU3 PERFORM THE GWM (GATEWAY A) SELF-TEST
- Using a diagnostic scan tool, perform the GWM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to: COMMUNICATIONS NETWORK .
- No : GO to AU4
AU4 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 : REFER to DTC CHART: IPC .
- No : GO to AU5
AU5 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 may be incorrectly set during the Programmable Module Installation (PMI), or the Programmable Module Installation (PMI) may not have been carried out.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Repeat the IPC self-test.
Is DTC U0146:00 still present?
- Yes : INSTALL a new GWM .
  REFER to: GATEWAY MODULE A (GWM) .
  
  CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the IPC self-test. If DTC U0146:00 is still present, INSTALL a new IPC .
  
  REFER to: INSTRUMENT PANEL CLUSTER (IPC) .
- 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.