Inspection and Verification
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. 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 mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Windshield washer hoses
- Wiper linkage
- Smart junction box (SJB) fuse(s):
- 21 (15A)
- 25 (20A)
- Circuitry
- Multi-function switch
- Windshield wiper motor
- Windshield washer pump
- Rear wiper motor
- Rear washer pump
- SJB
- 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 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 SJB.
- Carry out the network test.
- If the scan tool responds with no communication from one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
- If the network test passes, retrieve and record the continuous memory diagnostic trouble codes (DTCs).
- Clear the continuous DTCs and carry out the self-test diagnostics for the SJB.
- If the DTCs retrieved are related to the concern, go to the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Chart. 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.
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) CHART
| DTC | Description | Action |
|---|---|---|
| B1244 | Wiper Rear Motor Run Relay Coil Circuit Failure | If the rear wiper is inoperative, go to Pinpoint Test B . If the rear wiper is always ON, go to Pinpoint Test D . |
| B1245 | Wiper Rear Motor Run Relay Coil Circuit Short to Battery | Go to Pinpoint Test B . |
| B1614 | Wiper Rear Mode Select Switch Circuit Failure | Go to Pinpoint Test D . |