LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2005 >> Escape Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1391 (Parking Aid System) >> Diagnosis And Testing >> Parking Aid >> Pinpoint Tests >> Pinpoint Test G: The Audio Volume Does Not Reduce When The Parking Aid Tone Sounds >> Pinpoint Test G: The Audio Volume Does Not Reduce When The Parking Aid Tone Sounds

Pinpoint Test G: The Audio Volume Does Not Reduce When The Parking Aid Tone Sounds

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. G1 CHECK FOR CORRECT PARKING AID SYSTEM OPERATION 
    • Apply the parking brake.
    • Place an object behind the vehicle within the range of the parking aid sensors.
    • Ignition ON.
    • Place the transmission in REVERSE (R).
    • Verify the parking aid tone is sounding and the ACM  volume is reduced.
    • Is the parking aid tone sounding and ACM volume reduced? 
    • Yes:  The system is operating correctly at this time. The ACM  volume cutback may have faulted due to high network traffic or an intermittent fault condition.
    • No:  GO to G2  .
  2. G2 CHECK THE PARKING AID SIGNAL 
    • Apply the parking brake.
    • Place an object behind the vehicle within the range of the parking aid sensors.
    • Ignition ON.
    • Place the transmission in REVERSE (R).
    • Enter the following diagnostic mode on the scan tool: ACM  DataLogger.
    • Monitor the parking aid input status PID (RPA_STAT) while the parking aid tone is sounding.
    • Does the PID read "Enabled" while the parking aid tone is sounding? 
    • Yes:  GO to  G4.
    • No:  GO to G3  .
  3. G3 CHECK FOR COMMUNICATION WITH THE PAM 
    • Carry out the network test using the scan tool.
    • Does the scan tool communicate with the PAM? 
  4. G4 CHECK FOR CORRECT ACM OPERATION 
    • Disconnect all the ACM  connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the ACM  connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes:  INSTALL a new ACM  . REFER to AUDIO CONTROL MODULE (ACM) . 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.
scientia non olet · About LEMON Manuals