LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1262 (Exterior Lighting System) >> Diagnostic Tests >> Stoplamp >> Pinpoint Tests >> Pinpoint Test I: The Stoplamp Are On Continuously >> Pinpoint Test I: The STOPLAMP Are On Continuously

Pinpoint Test I: The STOPLAMP Are On Continuously

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. I1 CHECK THE STOPLAMP SWITCH 
    • Disconnect: Stoplamp Switch C278
    • Do the stoplamp continue to illuminate? 
    1. YES  : Go to  I2.
    2. NO  : INSTALL a new stoplamp switch. REFER to Stoplamp Switch . TEST the system for normal operation.
  2. I2 CHECK FOR SHORT TO VOLTAGE TO THE CJB 
    • Disconnect: CJB Fuse 39 (10A)
    • Do the stoplamp continue to illuminate? 
    1. YES  : If equipped with a TBCM, go to  I5.

      If not equipped with a TBCM, go to  I6.

    2. NO  : Go to  I3.
  3. I3 CHECK THE BRAKE SHIFT INTERLOCK 
    • Connect: CJB Fuse 39 (10A)
    • Disconnect: Brake Shift Interlock Actuator C2008
    • Do the stoplamp continue to illuminate? 
    1. YES  : Go to  I4.
    2. NO  : INSTALL a brake shift interlock actuator. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. TEST the system for normal operation.
  4. I4 CHECK THE PCM 
    • Disconnect: PCM C175b or PCM C1381b
    • Do the stoplamp continue to illuminate? 
    1. YES  : REPAIR circuit 569 (DG) for short to voltage. TEST the system for normal operation.
    2. NO  : Go to  I7.
  5. I5 CHECK THE TBCM 
    • Disconnect: TBCM C2142
    • Do the stoplamp continue to illuminate? 
    1. YES  : Go to  I6.
    2. NO  : INSTALL a new TBCM. TEST the system for normal operation.
  6. I6 CHECK THE MULTIFUNCTION SWITCH 
    • Disconnect: Multifunction Switch C202a
    • Do the stoplamp continue to illuminate? 
    1. YES  : If the high mounted stoplamp continues to illuminate, REPAIR circuit 511 (LG) for a short to voltage. TEST the system for normal operation.

      If the LH rear lamp continues to illuminate, REPAIR circuit 9 (LG/OG) for a short to voltage. TEST the system for normal operation.

      If the RH rear lamp continues to illuminate, REPAIR circuit 5 (OG/LB) for a short to voltage. TEST the system for normal operation.

    2. NO  : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES article. TEST the system for normal operation.
  7. I7 CHECK FOR CORRECT PCM OPERATION 
    • Disconnect all the PCM connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the PCM connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS - GASOLINE ENGINES article or ELECTRONIC ENGINE CONTROLS - DIESEL ENGINE article. TEST the system for normal operation.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
scientia non olet · About LEMON Manuals