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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2085 (Parking Aid System) >> Diagnostic Tests >> Parking Aid >> Pinpoint Tests >> Pinpoint Test G: DTC B2373 or C1920 - LED #1 Circuit Failure >> Pinpoint Test G: DTC B2373 Or C1920 - Led #1 Circuit Failure

Pinpoint Test G: DTC B2373 Or C1920 - Led #1 Circuit Failure

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
  1. H1 CHECK FOR RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PARKING AID MODULE SELF-TESTS 
    • Check for recorded parking aid module DTCs from the continuous and on-demand self-tests.
    • Are any DTCs recorded? 
    1. YES  : For DTC C1920 and B2373, go to  G2 .

      For all others, REFER to the Parking Aid Module Diagnostic Trouble Code (DTC) Index.

    2. NO  : Go to Pinpoint Test A .
  2. G2 CHECK CIRCUIT 1436 (VT/OG) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Parking Aid Disable Switch C2339
    • Disconnect: Parking Aid Module C4014
      • Fig 1: Checking Circuit For Open
      GF0025858Courtesy of FORD MOTOR CO.
    • Measure the resistance between the parking aid module C4014-5, circuit 1436 (VT/OG), harness side and the parking aid disable switch C2339-1, circuit 1436 (VT/OG), harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  G3.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  3. G3 CHECK CIRCUIT 1436 (VT/OG) FOR A SHORT TO GROUND 
      Fig 2: Checking Circuit For Short To Ground
      GF0004514Courtesy of FORD MOTOR CO.
    • Measure the resistance between the parking aid module C4014-5, circuit 1436 (VT/OG), harness side and ground.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  G4.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  4. G4 CHECK CIRCUIT 1436 (VT/OG) FOR A SHORT TO VOLTAGE 
    • Key in ON position.
      • Fig 3: Checking Circuit For Short To Voltage
      GF0004516Courtesy of FORD MOTOR CO.
    • Measure the voltage between the parking aid module C4014-5, circuit 1436 (VT/OG), harness side and ground.
    • Is any voltage present? 
    1. YES  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
    2. NO  : Go to  G5.
  5. G5 CHECK THE PARKING AID SWITCH 
    • Install a known good parking aid disable switch.
    • Test the system for normal operation.
    • Is the concern still present? 
    1. YES  : Go to  G6.
    2. NO  : INSTALL a new parking aid switch. REFER to Parking Aid Switch . CLEAR the DTCs. REPEAT the self-test.
  6. G6 CHECK FOR CORRECT PARKING AID MODULE OPERATION 
    • Disconnect the parking aid module connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the parking aid module 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 parking aid module. REFER to Parking Aid Module . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the scan tool data link test.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
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