LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2008 >> Edge SEL, FWD >> Repair and Diagnosis >> Electrical >> Gauges >> Information Center >> Diagnostic Tests >> Instrument Cluster (IC), Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test P: The High Beam Indicator Is Never/Always On

Pinpoint Test P: The High Beam Indicator Is Never/Always On

Normal Operation 

When the high beams are turned on, the smart junction box (SJB) sends a signal to the instrument cluster (IC) through the medium speed controller area network (MS-CAN) communication bus to illuminate the high beam indicator. If the high beam status message is missing for more than 5 seconds, the instrument cluster (IC) sets DTC U0140 in continuous memory and defaults the high beam indicator off.

NOTE: If DTC U0140 is set in the instrument cluster (IC), other observable symptoms may also be present such as tire pressure monitoring system (TPMS) warning indicator, backlighting and door ajar indication.

This pinpoint test is intended to diagnose the following:

PINPOINT TEST P: THE HIGH BEAM INDICATOR IS NEVER/ALWAYS ON 

  1. P1 CHECK THE HIGH BEAM HEADLAMPS OPERATION 
    • Key in ON position.
    • Place the headlamps in the HIGH BEAM position. Observe the high beam headlamps.
    • Do the high beam headlamps operate correctly? 
    1. YES  : Go to  P2.
    2. NO  : REFER to EXTERIOR LIGHTING article.
  2. P2 CARRY OUT THE INSTRUMENT CLUSTER (IC) INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL 
    • Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster (IC) DataLogger
    • Select the instrument cluster (IC) high beam indicator (HIGH_BEAM) active command and command the high beam indicator on and off. Observe the high beam indicator.
    • Does the high beam indicator illuminate when commanded on, and turn off when commanded off? 
    1. YES  : Go to  P3.
    2. NO  : Go to  P5.
  3. P3 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND INSTRUMENT CLUSTER (IC) SELF-TESTS 
    • Check for recorded instrument cluster (IC) DTCs from the continuous and on-demand self-tests.
    • Is DTC U0140 recorded? 
    1. YES  : Go to Pinpoint Test AI  .
    2. NO  : Go to  P4.
  4. P4 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the SJB 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 SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES 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.
  5. P5 CHECK FOR CORRECT INSTRUMENT CLUSTER (IC) OPERATION 
    • Disconnect the instrument cluster (IC) connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the instrument cluster (IC) connector and make sure it seats correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . 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