Inspection and Verification
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.
- Verify the customer concern.
- Visually inspect the following for obvious signs of mechanical and electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Rear bumper height and alignment
- Central junction box (CJB) fuse 18 (10A)
- Circuitry
- Parking aid module
- Parking aid sensors
- Parking aid speaker
- Parking aid switch
- Parking aid switch indicator LED
- Reversing lamps system
- 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 article, 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 article to diagnose no response from the powertrain control module (PCM).
- Carry out the network test:
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
- 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 Parking Aid Module Diagnostic Trouble Code (DTC) Index in this article. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
- 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 (UXXXX) diagnostics.
PARKING AID MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| B1299 | Power Supply Sensor Circuit Short to Ground | Go to Pinpoint Test E . |
| B1342 | ECU is Faulted | 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 Short to Vbat | Go to Pinpoint Test H . |
| B2477 | Module Configuration Failure | REFER to MODULE CONFIGURATION article. |
| C1699 | Left Rear Sensor Circuit Short to Vbat | Go to Pinpoint Test C . |
| C1700 | Left Rear Sensor Circuit Failure or Blockage | Go to Pinpoint Test B . |
| C1701 | Left Rear Sensor Circuit Fault | Go to Pinpoint Test D . |
| C1702 | Right Rear Sensor Circuit Short to Vbat | Go to Pinpoint Test C . |
| C1703 | Right Rear Sensor Circuit Failure or Blockage | Go to Pinpoint Test B . |
| C1704 | Right Rear Sensor Circuit Fault | Go to Pinpoint Test D . |
| C1705 | Left Rear Center Sensor Circuit Short to Vbat | Go to Pinpoint Test C . |
| C1706 | Left Rear Center Sensor Circuit Failure | Go to Pinpoint Test B . |
| C1707 | Left Rear Center Sensor Circuit Fault | Go to Pinpoint Test D . |
| C1708 | Right Rear Center Sensor Circuit Short to Vbat | Go to Pinpoint Test C . |
| C1709 | Right Rear Center Sensor Circuit Failure | Go to Pinpoint Test B . |
| C1710 | Right Rear Center Sensor Circuit Fault | Go to Pinpoint Test D . |
| C1742 | Rear Sounder Circuit Failure | Go to Pinpoint Test F . |
| C1743 | Parking Aid Module | Go to Pinpoint Test F . |
| C1748 | Switch Input Circuit Short to Ground | Go to Pinpoint Test G . |
| C1920 | Status LED No. 1 Circuit Failure | Go to Pinpoint Test H . |
| U2051 | One or More Calibration Files Missing/Corrupt | REFER to MODULE CONFIGURATION article. |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
PARAMETER IDENTIFICATION (PID) INDEX
| PID | Description |
|---|---|
| GEAR_INPT | Gear shift position |
| 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 |