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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1084 (Parking Aid System) >> Diagnostic Tests >> Parking Aid >> Pinpoint Tests >> Pinpoint Test D: DTCs C1701, C1704, C1707 or C1710 - Sensor Circuit Fault >> PINPOINT TEST D: DTCs C1701, C1704, C1707 AND C1710 - SENSOR CIRCUIT FAULT

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

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. K1 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS 
    • Check the PAM DTCs from the continuous and on-demand self-tests.
    • Are parking aid DTCs other than C1701, C1704, C1707 or C1710 recorded? 
    1. YES  : DIAGNOSE the other DTCs first. REFER to DTC Charts .
    2. NO  : Go to  D2.
  2. D2 CHECK THE PARKING AID SENSOR OPERATION 
    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.
    • Carry out the azimuth system check. Refer to Azimuth System Check .
    • Carry out the elevation system check. Refer to Elevation System Check .
    • Does the parking aid system pass both system checks? 
    1. YES  : 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.
    2. NO  : Go to  D3.
  3. D3 CHECK THE PARKING AID SENSOR DISTANCE PIDs 
    • Make sure the suspect parking aid sensor(s) is flush-mounted in the bezel.
    • 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 will read 255 cm (100 in) on a correctly functioning sensor.
    • Does the PID read 255 cm (100 in)? 
    1. YES  : Go to  D4.
    2. NO  : Go to  D5.
  4. D4 CHECK THE PARKING AID SENSOR ATTENUATION PIDs 
    • Check the parking aid sensor attenuation PIDs.
    • Do the attenuation PIDs read between 0 and 16? 
    1. YES  : Go to  D6.
    2. NO  : Go to  D5.
  5. D5 INSTALL A KNOWN GOOD SENSOR 
    • Install a known good sensor for the suspect parking aid sensor.
    • Key in ON position.
    • Clear the DTCs. Repeat the self-test. Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : Go to  D6.
    2. NO  : INSTALL a new parking aid sensor. REFER toParking Aid Sensor . CLEAR the DTCs. REPEAT the self-test.
  6. D6 CHECK FOR CORRECT PAM OPERATION 
    • Disconnect the PAM connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the PAM 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 PAM. REFER to Parking Aid Module . REPEAT the self-test.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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