Overview
The windshield wiper/washer system is activated by the wiper/washer switch. The following functions/features of the windshield wiper/washer system are
- Windshield wash
- Courtesy wipe
- Windshield wipers (low/high speed)
- Intermittent wipers
- Speed dependent wipers
- Wiper-activated exterior lamps
- Rain sensitive wipers (if equipped)
- Rear window wipe
- Rear window wash
- Reverse gear wipe
There are 6 intermittent/sensitivity settings to choose from for the intermittent/rain sensitive wipers.
There are 2 settings to choose from for the rear window wiper operation.
Scheme 1
Diagnostic Overview
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Normal Operation and Fault Conditions
Refer to System Operation - WINDSHIELD WIPERS .
Refer to System Operation - WINDSHIELD WASHER .
Refer to Component Description - WIPER/WASHER SWITCH .
Refer to Component Description - FRONT WIPER MOTOR .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1131:87 | Wiper Motor Module: Missing Message | Sets when the BCM does not receive a reply from the driver side windshield wiper motor over the LIN. An internal failure of the driver side windshield wiper motor, a voltage supply or ground circuit can cause this concern. |
| B129A: 86 | LIN Bus "D": Signal Invalid | Sets when the BCM receives invalid data from the driver side windshield wiper motor over the LIN. |
| B129A: 88 | LIN Bus "D": Bus Off | Sets when the BCM receives no data from the driver side windshield wiper motor over the LIN. |
| B1D38:16 | Front Wiper Motor: Circuit Voltage Below Threshold | Sets when the BCM receives a low voltage message from the driver side windshield wiper motor. The driver side windshield wiper motor sends the message when the voltage supply to either wiper motor is below 9.5 volts. |
| B1D38:17 | Front Wiper Motor: Circuit Voltage Above Threshold | Sets when the BCM receives a high voltage message from the driver side windshield wiper motor. The driver side windshield wiper motor sends the message when the voltage supply to either wiper motor is above 15 volts. |
| B1D38:19 | Front Wiper Motor: Circuit Current Above Threshold | Sets when the BCM receives a high current message from the driver side windshield wiper motor. The driver side windshield wiper motor sends the message when either wiper motor is experiencing an excessive current draw and is in danger of overheating. When set, the wiper motor speed is decreased to allow the motor to cool down. |
BCM DTC FAULT TRIGGER CONDITIONS
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Refer to System Operation - WINDSHIELD WIPERS .
Refer to Component Description - WIPER/WASHER SWITCH .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1087:86 | LIN Bus "A": Signal Invalid | Sets when the BCM receives invalid data from the headlamp switch and SASM over the LIN. |
| B1087:88 | LIN Bus "A": Bus Off | Sets when the BCM receives no data from the headlamp switch and SASM over the LIN. |
| B112B:87 | Steering Wheel Module: Missing Message | Sets when the BCM loses communication with the SASM over the LIN. |
BCM DTC FAULT TRIGGER CONDITIONS
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Refer to System Operation - WINDSHIELD WIPERS .
Refer to Component Description - WIPER/WASHER SWITCH .
Refer to Component Description - FRONT WIPER MOTOR .
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to System Operation - WINDSHIELD WIPERS .
Refer to System Operation - INTERMITTENT WIPERS .
Refer to Component Description - WIPER/WASHER SWITCH .
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Refer to System Operation - WINDSHIELD WIPERS .
Refer to System Operation - RAIN SENSITIVE WIPERS .
Refer to Component Description - WIPER/WASHER SWITCH .
Refer to Component Description - RAIN SENSOR .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B10AD:83 | Rain Sensor: Value of Signal Protection Calculation Incorrect | Sets when the BCM receives corrupt data from the rain sensor. |
| U0231:00 | Lost Communication With Rain Sensing Module: No Sub Type Information | Sets when the BCM determines a communication error has occurred on the LIN. This DTC may be caused by an open in the rain sensor power or ground circuit or an open in the LIN circuit between the rain sensor and the BCM. |
BCM DTC FAULT TRIGGER CONDITIONS
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to System Operation - WINDSHIELD WIPERS .
Refer to Component Description - FRONT WIPER MOTOR .
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Refer to System Operation - WINDSHIELD WIPERS .
Refer to System Operation - WINDSHIELD WASHER .
Refer to Component Description - WIPER/WASHER SWITCH .
Refer to Component Description - WASHER PUMP .
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Refer to System Operation - REAR WINDOW WIPER .
Refer to Component Description - WIPER/WASHER SWITCH .
Refer to Component Description - REAR WIPER MOTOR .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1C77:13 | Rear Wiper Relay: Circuit Open | Sets when the BCM detects an open from the rear wiper motor control circuit. |
| B1C77:19 | Rear Wiper Relay: Circuit Current Above Threshold | Sets when the BCM detects excessive current from the rear wiper motor control circuit. |
BCM DTC FAULT TRIGGER CONDITIONS
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Refer to System Operation - REAR WINDOW WIPER .
Refer to Component Description - WIPER/WASHER SWITCH .
Refer to Component Description - REAR WIPER MOTOR .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1C77:11 | Rear Wiper Relay: Circuit Short To Ground | Sets when the BCM detects a short to ground from the rear wiper motor control circuit. |
BCM DTC FAULT TRIGGER CONDITIONS
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in SERVICE INFORMATION for information about these practices.
Refer to SYSTEM WIRING DIAGRAMS - Wipers and Washers for additional information.
Refer to System Operation - REAR WINDOW WASHER .
Refer to Component Description - WIPER/WASHER SWITCH .
Refer to Component Description - WASHER PUMP .