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Pinpoint Test

  1. VERIFY THE CUSTOMER CONCERN
    1. Ignition ON.
    2. Verify there is an observable symptom present.
      • Is an observable symptom present? 
      1. Yes:  GO to 2  on page 2.
      2. No:  The system is operating normally at this time. The Diagnostic Trouble Code (DTC) may have been set due to high network traffic or an intermittent fault condition.
  2. CHECK THE COMMUNICATION NETWORK
    1. Ignition ON.
    2. Using a scan tool, perform a network test.
      • Does the Body Control Module (BCM) pass the network test? 
      1. Yes:  GO to 3  on page 2.
      2. No:  REFER to DIAGNOSTIC ROUTINE I 
  3. RETRIEVE THE RECORDED Diagnostic Trouble Codes (DTCs) FROM THE Cruise-Control Module (C-CM) AND Body Control Module (BCM) SELF-TEST
    1. Using a scan tool, perform the Cruise-Control Module (C-CM) and Body Control Module (BCM) self-test.
      • Is Diagnostic Trouble Code (DTC) U3003:16 or Diagnostic Trouble Code (DTC) U3003:17 recorded? 
      1. Yes:  For the Cruise-Control Module (C-CM), REFER to DIAGNOSTIC ROUTINE Q  or REFER to DIAGNOSTIC ROUTINE R .

        For the Body Control Module (BCM), REFER to DIAGNOSTIC ROUTINE H  or REFER to DIAGNOSTIC ROUTINE I .

      2. No:  GO to 4  on page 2.
  4. RECHECK THE Cruise-Control Module (C-CM) Diagnostic Trouble Codes (DTCs)
      NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
    1. Using a scan tool, clear the Diagnostic Trouble Codes (DTCs).
    2. Repeat the Cruise-Control Module (C-CM) self-test.
      • Is Diagnostic Trouble Code (DTC) U0140:00 still present? 
      1. Yes:  GO to 5  on page 2.
      2. No:  The system is operating correctly at this time. The Diagnostic Trouble Code (DTC) may have been set due to high network traffic or an intermittent fault condition.
  5. CHECK FOR Diagnostic Trouble Code (DTC) U0140:00 SET IN OTHER MODULES
    1. Clear all Diagnostic Trouble Codes (DTCs).
    2. Ignition OFF.
    3. Wait 10 seconds.
    4. Ignition ON.
    5. Using a scan tool, perform self-test.
    6. Retrieve the continuous memory Diagnostic Trouble Codes (DTCs) from all modules.
      • Is Diagnostic Trouble Code (DTC) U0140:00 set in other modules? 
      1. Yes:  INSTALL a new Body Control Module (BCM). REFER to BODY CONTROL MODULE (BCM) - WITH INTELLIGENT ACCESS (IA) or REFER to BODY CONTROL MODULE (BCM) - WITHOUT INTELLIGENT ACCESS (IA) .
      2. No:  INSTALL a new Cruise-Control Module (C-CM). REFER to CRUISE CONTROL MODULE (C-CM) .
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