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PINPOINT TEST D: PINPOINT TEST D: DTCs C1701, C1704, C1707 AND C1710 - SENSOR CIRCUIT FAULT

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. D1 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 multiple DTCs recorded? 
    1. YES  : Go to  D2.
    2. NO  : Go to  D3.
  2. D2 CHECK THE BUMPER WIRING HARNESS 
    • Inspect the bumper wiring harness for opens, shorts, grounds or corrosion.
    • Is the bumper wiring harness OK? 
    1. YES  : Go to  D3.
    2. NO  : REPAIR or INSTALL a new bumper wiring harness. REPEAT the self-test.
  3. D3 DETERMINE THE CONDITION 
    NOTE: Make sure the area around the vehicle is clear of anything that may activate the parking aid system.
    • Apply the parking brake.
    • With the brake pedal applied, shift the transmission into REVERSE (R).
    • Does the parking aid sound a continuous or intermittent tone when no obstacles are present? 
    1. YES  : Go to  D6.
    2. NO  : Go to  D4.
  4. D4 MONITOR THE PARKING AID PID 
    NOTE: Make sure the area around the vehicle is clear of anything that may activate the parking aid system.
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Parking Aid PID
    • With the brake pedal pressed, shift the transmission into REVERSE (R) and monitor the parking aid sensor distance PID. The PIDs read 255 cm (100 in) on a correctly functioning sensor.
    • Does the PID read 255 cm (100 in)? 
    1. YES  : Go to  D5.
    2. NO  : Go to  D6.
  5. D5 VERIFY THE SUSPECTED SENSOR ALIGNMENT 
    • Make sure the suspect parking aid sensor is the correct sensor.
    • Make sure the suspect parking aid sensor is flush-mounted in the bezel.
    • Make sure the suspect parking aid sensor is in alignment. Align the sensor if necessary. Refer to both the Azimuth System Check  and Elevation System Check  in this article.
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Parking Aid PID
    • With the brake pedal applied, shift the transmission into REVERSE (R) and monitor the parking aid sensor distance PID. The PID reads 255 cm (100 in) on a correctly functioning sensor.
    • Does the PID read 255 cm (100 in)? 
    1. YES  : The system is operating normally at this time. CLEAR the DTCs. REPEAT the self-test.
    2. NO  : Go to  D6.
  6. D6 CHECK THE BUMPER FOR DEBRIS 
    NOTE: Make sure the area around the vehicle is clear of anything that might activate the parking aid system.
    • Clean the rear bumper and sensors with high-pressure water.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : Go to  D7.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a dirty or blocked parking aid sensor. CLEAR the DTCs. REPEAT the self-test.
  7. D7 CHECK THE PARKING AID SENSOR OPERATION 
    • Move the vehicle to an open area, free of obstacles.
    • Key in ON position.
    • Check the parking aid sensor distance and attenuation PIDs.
    • Do the parking aid sensor distance PIDs read 255 cm (100 in), and the attenuation PIDs read between 0 and 16? 
    1. YES  : Go to  D8.
    2. NO  : INSTALL a new parking aid sensor. REFER to Parking Aid Sensor  in this article. CLEAR the DTCs. REPEAT the self-test.
  8. D8 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 determine if the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new parking aid module. REFER to Parking Aid Module  in this article. 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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