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Inspection and Verification

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of electrical damage.
    VISUAL INSPECTION CHART

    Electrical
    • Smart junction box (SJB) fuse 29 (10A)
    • Circuitry
    • Parking aid sensors
    • Parking aid disable switch
    • Parking aid speaker (part of the parking aid module)
    • Reversing lamps
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
    • check that the program card is correctly installed.
    • check the connections to the vehicle.
    • check the ignition switch position.
  5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating.
  6. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
    • CAN or ISO circuit fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK .
    • No response/not equipped for the parking aid module, GO to PINPOINT TEST A .
    • System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, and carry out self-test diagnostics for the parking aid module.
  7. If the DTCs retrieved are related to the concern, go to the PARKING AID MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
  8. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART . to continue diagnosis.
PARKING AID MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B1299 Power Supply Sensor Circuit Short to Ground Parking Aid Module GO to PINPOINT TEST C .
B1342 ECU is Defective Parking Aid Module CLEAR the DTCs. REPEAT the parking aid module self-test. If DTC B1342 is retrieved again, INSTALL a new parking aid module. REFER to PARKING AID MODULE  in this article. CLEAR all DTCs. REPEAT the self-test.
B2373 LED No. 1 Circuit Failure Parking Aid Module GO to PINPOINT TEST H .
B2477 Module Configuration Failure Parking Aid Module REFER to MODULE CONFIGURATION .
C1699 Left Rear Outer Sensor Circuit Short to Battery Parking Aid Module GO to PINPOINT TEST D .
C1700 Left Rear Outer Sensor Circuit Failure Parking Aid Module GO to PINPOINT TEST C .
C1701 Left Rear Outer Sensor Fault Parking Aid Module GO to PINPOINT TEST E .
C1702 Right Rear Outer Sensor Circuit Short to Battery Parking Aid Module GO to PINPOINT TEST D .
C1703 Right Rear Outer Sensor Circuit Failure Parking Aid Module GO to PINPOINT TEST C .
C1704 Right Rear Outer Sensor Fault Parking Aid Module GO to PINPOINT TEST E .
C1705 Left Rear Inner Sensor Circuit Short to Battery Parking Aid Module GO to PINPOINT TEST D .
C1706 Left Rear Inner Sensor Circuit Failure Parking Aid Module GO to PINPOINT TEST C .
C1707 Left Rear Inner Sensor Fault Parking Aid Module GO to PINPOINT TEST E .
C1708 Right Rear Inner Sensor Circuit Short to Battery Parking Aid Module GO to PINPOINT TEST D .
C1709 Right Rear Inner Sensor Circuit Failure Parking Aid Module GO to PINPOINT TEST C .
C1710 Right Rear Inner Sensor Fault Parking Aid Module GO to PINPOINT TEST E .
C1742 Rear Sounder Circuit Failure Parking Aid Module GO to PINPOINT TEST F .
C1743 Rear Sounder Circuit Short to Battery Parking Aid Module GO to PINPOINT TEST F .
C1748 Switch Input Circuit Short to Ground Parking Aid Module GO to PINPOINT TEST G .
C1920 Status LED No. 1 Circuit Short to Ground Parking Aid Module GO to PINPOINT TEST H .
PARAMETER IDENTIFICATION (PID) INDEX

PID Description
LR_CTRD
LRI_DIST		 Left rear inner sensor distance to object
LR_CNRD
LRO_DIST		 Left rear outer sensor distance to object
RR_CTRD
RRI_DIST		 Right rear inner sensor distance to object
RR_CNRD
RRO_DIST		 Right rear outer sensor distance to object
LR_CTRT
LRI_ATTEN		 Left rear inner sensor attenuation
LR_CNRT
LRO_ATTEN		 Left rear outer sensor attenuation
RR_CTRT
RRI_ATTEN		 Right rear inner sensor attenuation
RR_CNRT
RRO_ATTEN		 Right rear outer sensor attenuation
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