Pinpoint Test C: The Windshield Wipers Stay On Continuously

WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

C1 CHECK THE WINDSHIELD WIPER OPERATION WITH THE IGNITION OFF
- Ignition OFF.
- Observe the windshield wiper operation.
- Are the windshield wipers operating?
  - YES : GO to C2.
  - No : GO to C3.
C2 CHECK THE WIPER RELAY OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
- Disconnect: Wiper Relay.
- Observe the windshield wiper operation.
- Do the windshield wipers continue to operate?
  - YES : REPAIR the circuit.
  - No : INSTALL a new wiper relay.
C3 CHECK THE MULTIFUNCTION SWITCH INPUT
- Ignition ON.
- Make sure the multifunction switch is in the off setting.
- Using a scan tool, monitor the SCCM multifunction switch PIDs:
  - F_WASH_SW
  - F_WIP_INT_D1
  - F_WIP_INT_D2
  - F_WIP_INT_D3
  - F_WIP_INT_D4
  - F_WIP_INT_D5
  - F_WIP_SLO_SW
  - F_WIPE_FAST_SW
- Are all of the PIDs displayed as OFF?
  - YES : GO to C4.
  - No : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES .
    If the concern is still present, INSTALL a new SCCM. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.
C4 CHECK THE WINDSHIELD WIPER OPERATION WITH THE SCCM DISCONNECTED
- Ignition OFF.
- Disconnect: SCCM C2414A.
- Ignition ON.
- Observe the windshield wiper operation.
- Do the windshield wipers continue to operate?
  - YES : GO to C5.
  - No : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation. If the concern is still present, GO to C6.

C5 CHECK THE HIGH SPEED FAIL-SAFE CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.
Disconnect: Windshield Wiper Motor C125.

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C125-1	CRW15 (BN/WH)	-	Ground

Fig 1: Checking High Speed Fail-Safe Circuit For Short To Ground

Courtesy of FORD MOTOR CO.

Is the resistance greater than 10, 000 ohms?
- YES : INSTALL a new windshield wiper motor. REFER to Wiper Motor .
- No : REPAIR the circuit.

C6 CHECK FOR CORRECT SCCM OPERATION
- Disconnect and inspect all SCCM connectors.
- Repair:
  - corrosion (install new connector or terminals - clean module pins)
  - damaged or bent pins - install new terminals/pins
  - pushed-out pins - install new pins as necessary
- Reconnect the SCCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
  - YES : CHECK On-Line Automotive Service Information System (OASIS) for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new SCCM. REFER to STEERING COLUMN SWITCHES .
  - 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.