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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 740 (Parking Aid System - F-150 & Mark LT) >> Diagnostic Tests >> Parking Aid >> Pinpoint Tests >> Pinpoint Test D: DTCs C1701, C1704, C1707 and 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 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. D1 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PARKING AID MODULE SELF-TESTS 
    • Check the parking aid module 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 the Parking Aid Module Diagnostic Trouble Code (DTC) Index in this article.
    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 toAzimuth System Check  in this article.
    • Carry out the elevation system check. Refer toElevation System Check  in this article.
    • 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 to Parking Aid Sensor  in this article. CLEAR the DTCs. REPEAT the self-test.
  6. D6 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.
    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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