Pinpoint Test A: The Windshield Wipers Are Inoperative
WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
- A1 CHECK FOR SCCM DTC B1131:02 OR B1131:08
- Ignition ON.
- Using a scan tool, perform SCCM self-test.
Is DTC B1131:02 or B1131:08 present?
- Yes : GO to A3.
- No :: GO to A2 .
- A2 CHECK THE FRONT WIPER COMMAND LOW SPEED (F_WIP_SLO_SW) PID
- Ignition ON.
- Using a scan tool, view SCCM PID .
- While monitoring the SCCM PID F_WIP_SLO_SW, place the wiper/washer switch into the windshield wiper LOW position.
Does the PID read ON when the wiper/washer switch is in the LOW position?
- Yes : GO to A3 .
- No
: For vehicles without the police package, INSTALL a new wiper/washer switch. REFER to WIPER AND WASHER SWITCH . If the concern is still present, INSTALL a new SCCM
, REFER to
STEERING COLUMN CONTROL MODULE (SCCM)
.
For vehicles with the police package, INSTALL a new multifunction switch. REFER to STEERING COLUMN MULTIFUNCTION SWITCH . If the concern is still present, INSTALL a new SCCM , REFER to STEERING COLUMN CONTROL MODULE (SCCM) .
- A3 CHECK THE WINDSHIELD WIPER MOTOR GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Windshield Wiper Motor.
- Measure:
Positive Lead Measurement/Action Negative Lead C125-6 Ground
Is the resistance less than 3 ohms?
- Yes : GO to A4 .
- No : REPAIR the circuit.
- A4 CHECK THE WINDSHIELD WIPER MOTOR VOLTAGE CIRCUIT FOR AN OPEN
Is the voltage greater than 11 volts?
- Yes : GO to A9.
- No : GO to A5 .
- A5 CHECK FOR VOLTAGE TO THE FRONT WIPER RELAY
- Ignition OFF.
- Disconnect: Front Wiper Relay.
Positive Lead Measurement/Action Negative Lead Front Wiper Relay, Pin 3 Ground - Measure:
Is the voltage greater than 11 volts?
- Yes : GO to A6 .
- No : VERIFY BJB fuse 4 (30A) is OK. See OEM FUSE AND RELAY INFORMATION . If OK, REPAIR the circuit. If not OK, REFER to the appropriate OEM WIRING DIAGRAMS to identify the possible causes of the circuit short.
- A6 CHECK FOR IGNITION VOLTAGE TO THE FRONT WIPER RELAY
- Ignition ON.
- Measure:
Positive Lead Measurement/Action Negative Lead Front Wiper Relay, Pin 2 Ground
Is the voltage greater than 11 volts?
- Yes : GO to A7 .
- No : REPAIR the circuit.
- A7 CHECK THE FRONT WIPER RELAY GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Measure:
Positive Lead Measurement/Action Negative Lead Front Wiper Relay, Pin 1 Ground
Is the resistance less than 3 ohms?
- Yes : GO to A8 .
- No : REPAIR the circuit.
- A8 CHECK THE FRONT WIPER RELAY
- Carry out the Relay-Micro ISO component test.
Refer to OEM WIRING DIAGRAMS COMPONENT TESTING for component testing procedures.
Did the wiper relay pass the component test?
- Yes : REPAIR circuit CRW03 (VT/WH) for an open.
- No : INSTALL a new front wiper relay.
- A9 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
- Ignition OFF.
- Inspect the windshield wiper motor connector.
- Repair:
- corrosion (replace connector or terminals - clean module pins)
- damaged or bent pins - replace terminals/pins
- pushed-out pins - replace pins as necessary
- Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
- Connect: Front Wiper Relay (if previously disconnected).
- Operate the system and verify the concern is still present.
Is the concern still present?
- Yes : CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new windshield wiper motor. REFER to WIPER MOTOR - WINDSHIELD .
- No : The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.