Pinpoint Test D: U0146:00: U0146:00

D1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable concern.
Is an observable symptom present?
- Yes : GO to D2
- 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.
D2 CHECK THE COMMUNICATION NETWORK
- Using a diagnostic scan tool, perform the network test.
Does the GWM pass the network test?
- Yes : GO to D3
- No : REFER to: COMMUNICATIONS NETWORK .
D3 CHECK GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, retrieve GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs)
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to: COMMUNICATIONS NETWORK .
- No : GO to D4
D4 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST
- Using a diagnostic scan tool, perform a HUD module self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to DTC CHARTS .
- No : GO to D5
D5 RECHECK THE HUD (HEAD UP DISPLAY) MODULE 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 HUD module self-test.
Is DTC U0146:00 still present?
- Yes : GO to D6
- 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.
D6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0146:00 SET IN OTHER MODULES
- Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs).
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds
- Using a diagnostic scan tool, perform the continuous memory self-test.
- Retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.
Is DTC U0146:00 set in the ABS module?
- Yes : INSTALL a new GWM .
  REFER to: GATEWAY MODULE A (GWM) .
- No : INSTALL a new HUD module.
  REFER to: HEAD UP DISPLAY (HUD) MODULE .