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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1473 (Parking Aid System) >> Diagnosis And Testing >> Parking Aid >> Pinpoint Tests >> Pinpoint Test D: DTC B1B44:96, B1B46:96, B1B48:96 Or B1B50:96 >> Pinpoint Test D: DTC B1B44:96, B1B46:96, B1B48:96 Or B1B50:96

Pinpoint Test D: DTC B1B44:96, B1B46:96, B1B48:96 Or B1B50:96

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. 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 PAM SELF-TESTS 
    • Check the PAM  DTCs from the continuous and on-demand self-tests.
    • Are parking aid DTCs other than B1B44:96, B1B46:96, B1B48:96 or B1B50:96 recorded? 
    • Yes:  DIAGNOSE the other DTCs first. REFER to DTC CHARTS .
    • 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 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? 
    • 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. TEST the system for normal operation.
    • No:  GO to D3  .
  3. D3 CHECK THE REAR PARKING AID SENSOR DISTANCE PIDs 
    • Make sure the suspect parking aid sensor(s) is flush-mounted in the bezel.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Parking Aid PID.
    • With the brake pedal applied, shift the transaxle into REVERSE (R) and monitor the parking aid sensor distance PID. The PID reads 255 cm (8.4 ft) on a correctly functioning sensor.
    • Does the PID read 255 cm (8.4 ft)? 
    • Yes:  GO to D4  .
    • No:  GO to  D5.
  4. D4 CHECK THE PARKING AID SENSOR ATTENUATION PIDs 
    • Check the parking aid sensor attenuation PIDs.
    • Do all of the attenuation PIDs read between 0 and 16 ms? 
    • Yes:  GO to  D6.
    • No:  GO to D5  .
  5. D5 INSTALL A KNOWN GOOD SENSOR 
    • Install a known good sensor for the suspect parking aid sensor.
    • Ignition ON.
    • Clear the DTCs. Repeat the self-test. Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes:  GO to D6  .
    • No:  INSTALL a new parking aid sensor. REFER to PARKING AID SENSOR . CLEAR the DTCs. TEST the system for normal operation.
  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? 
    • Yes:  INSTALL a new PAM  . REFER to PARKING AID MODULE (PAM) . TEST the system for normal operation.
    • 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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