Inspection and Verification
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Visually inspect for obvious signs of electrical damage.VISUAL INSPECTION CHART
Electrical - Smart junction box (SJB) fuse 35 (10A)
- Wiring, terminals or connectors
- Parking aid module
- Parking aid sensors
- Parking aid speaker
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
- If the scan tool does not communicate with the VCM:
- Check the VCM connection to the vehicle.
- Check the scan tool connection to the VCM.
- Refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no communication with the scan tool.
- If the scan tool does not communicate with the vehicle:
- Verify the ignition key is in the ON position.
- Verify the scan tool operation with a known good vehicle.
- Refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the PCM.
- Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- If the network test passes, retrieve and record the continuous memory DTCs.
- Clear the continuous DTCs and carry out the self-test diagnostics for the parking aid module.
- If the DTCs retrieved are related to the concern, go to the Diagnostic Trouble Code (DTC) Charts. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
- If no DTCs related to the concern are retrieved, go to Symptom Chart .
NOTE:
Make sure to use the latest scan tool software release.
NOTE:
The vehicle communication module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
NOTE:
Follow the non-network DTC diagnostics (Bxxxx, Cxxxx, Pxxxx) prior to the network DTC diagnostics (Uxxxx).
PARAMETER IDENTIFICATION (PID) CHART
| PID | Description |
|---|---|
| LRI_DIST | Left rear inner sensor distance to object |
| LRO_DIST | Left rear outer sensor distance to object |
| RRI_DIST | Right rear inner sensor distance to object |
| RRO_DIST | Right rear outer sensor distance to object |
| LRI_ATTEN | Left rear inner sensor attenuation |
| LRO_ATTEN | Left rear outer sensor attenuation |
| RRI_ATTEN | Right rear inner sensor attenuation |
| RRO_ATTEN | Right rear outer sensor attenuation |
| TRANSGR | Transmission gear position |