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The Lane Departure Warning (LDW) Does Not Provide Feedback When Activated

  1. B1 CHECK THE PSCM (POWER STEERING CONTROL MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS) 
    • Ignition ON. Using a diagnostic scan tool, check the PSCM  Continuous Memory Diagnostic Trouble Codes (CMDTCs).

    Are any Diagnostic Trouble Codes (DTCs) present? 

    1. Yes  : REFER to: POWER STEERING .
    2. No  : GO to B2 
  2. B2 CHECK THE IPMA (IMAGE PROCESSING MODULE A) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS) 
    • Using a diagnostic scan tool, check the IPMA  Continuous Memory Diagnostic Trouble Codes (CMDTCs).

    Are any Diagnostic Trouble Codes (DTCs) present? 

    1. Yes  : REFER to the IPMA DTC chart .
    2. No  : GO to  B4
  3. B3 CHECK THE STEERING WHEEL VIBRATION 
    • Change the intensity setting in the lane keeping system message center menu.

    Does the steering wheel perform a test vibration after the intensity setting is changed? 

    1. Yes  : GO to  B5
    2. No  : GO to B4 
  4. B4 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION 
    • Ignition OFF.
    • Disconnect and inspect the PSCM  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 PSCM  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 Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PSCM  .

      REFER to: STEERING GEAR .

    2. No  : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
  5. B5 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION 
    • Ignition OFF.
    • Disconnect and inspect the IPMA  connector.
    • 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 IPMA  connector. 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 Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new IPMA  .

      REFER to: INTERIOR REAR VIEW MIRROR .

    2. No  : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
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