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Pinpoint Test B: The Intermittent And/Or Low Speed Windshield Wipers Are Inoperative

WARNING: This page is about a different car, the 2013 Ford F-150. 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.
  1. B1 CHECK FOR SCCM DTC B1131:02 OR DTC B1131:08 
    • Ignition ON.
    • Using a scan tool, perform the SCCM self-test.
    • Is DTC B1131:02 or DTC B1131:08 present? 
    • Yes  : GO to  B4.
    • No  : GO to B2.
  2. B2 CHECK THE LOW SPEED WINDSHIELD WIPER OPERATION 
    • Place the multifunction switch to the low speed setting and observe the windshield wipers. Place the multifunction switch to the off setting.
    • Do the windshield wipers operate with the multifunction switch in the low speed setting? 
  3. B3 CHECK THE MULTIFUNCTION SWITCH LOW SPEED SETTING INPUT 
    • Using a scan tool, monitor the SCCM F_WIP_SLO_SW PID.
    • Place the multifunction switch to the low speed setting.
    • Does the PID indicate the multifunction switch is in the low speed setting? 
  4. B4 CHECK THE HIGH SPEED WIPER OPERATION 
    • Place the multifunction switch to the high speed setting and observe the windshield wipers. Place the multifunction switch to the off setting.
    • Do the windshield wipers operate with the multifunction switch in the high speed setting? 
    • Yes  : If equipped with a rain sensor, GO to B5.

      If not equipped with a rain sensor, GO to  B6.

    • No  : GO to PINPOINT TEST A .
  5. B5 ISOLATE THE RAIN SENSOR 
    • Ignition OFF.
    • Disconnect: Rain Sensor C914.
    • Ignition ON.
    • NOTE: DTC B10AD:02 or DTC B10AD:08 may set and should be ignored.

      Using a scan tool, clear the DTCs and then perform the SCCM self-test.

    • Is DTC B1131:02 or DTC B1131:08 still present? 
    • Yes  : GO to B6.
    • No  : INSTALL a new rain sensor. REFER to RAIN SENSOR .
  6. B6 CHECK THE WINDSHIELD WIPER MOTOR LOGIC GROUND CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: Windshield Wiper Motor C125.
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C125-3 GD120 (BK/GN) - Ground
      Fig 1: Identifying Windshield Wiper Motor C125 Connector Terminals
      G08344329Courtesy of FORD MOTOR CO.
    • Is the resistance less than 3 ohms? 
    • Yes  : GO to B7.
    • No  : REPAIR the circuit.
  7. B7 CHECK THE LIN CIRCUIT FOR A SHORT TO VOLTAGE 
    • Disconnect: SCCM C2414A.
    • Ignition ON.
    • Measure the voltage  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C125-4 VDN05 (YE/GY) - Ground
      Fig 2: Identifying Windshield Wiper Motor C125 Connector Terminals
      G08344330Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes  : REPAIR the circuit.
    • No  : GO to B8.
  8. B8 CHECK THE LIN CIRCUIT FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C125-4 VDN05 (YE/GY) - Ground
      Fig 3: Identifying Windshield Wiper Motor C125 Connector Terminals
      G08344331Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
    • Yes  : GO to B9.
    • No  : REPAIR the circuit.
  9. B9 CHECK THE LIN CIRCUIT FOR AN OPEN 
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C125-4 VDN05 (YE/GY) C2414A-20 VDN05 (YE/GY)
      Fig 4: Measuring Resistance Between C125 And C214A Connector Terminls
      G07965868Courtesy of FORD MOTOR CO.
    • Is the resistance less than 3 ohms? 
    • Yes  : INSTALL a new windshield wiper motor. REFER to WIPER MOTOR . TEST the system for normal operation. If the concern is still present, GO to B10.
    • No  : REPAIR the circuit.
  10. B10 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.
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