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Pinpoint Test E: The Rain Sensitive Wiper Feature Is Inoperative

  1. E1 CHECK THE LOW SPEED WIPER OPERATION 
    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.
    • Ignition ON.
    • Place the multifunction switch to the low speed setting and observe the windshield wipers. Place the multifunction switch to the off setting.

    Do the low speed wipers operate when the low speed setting is selected? 

  2. E2 CHECK FOR 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? 

  3. E3 CHECK FOR DTC B10AD:02 OR DTC B10AD:08 
    • Review the results from the SCCM  self-test.

    Is DTC B10AD:02 or DTC B10AD:08 present? 

    • Yes  : GO to  E12.
    • No  : GO to E4  .
  4. E4 VERIFY THE RAIN SENSITIVE WIPER FEATURE IS ENABLED IN THE VEHICLE MESSAGE CENTER 
    • Access the vehicle settings in the message center using the steering wheel controls. Make sure the rain sensitive feature is enabled.

    Is the rain sensitive feature enabled? 

    • Yes  : GO to E5  .
    • No  : ENABLE the rain sensitive feature. INFORM the customer how to enable/disable the rain sensitive feature.
  5. E5 CHECK THE INPUT FROM THE MULTIFUNCTION SWITCH 
    • Using a scan tool, monitor the SCCM  multifunction switch PIDs:
      • F_WIP_INT_D1
      • F_WIP_INT_D2
      • F_WIP_INT_D3
      • F_WIP_INT_D4
      • F_WIP_INT_D5
    • Cycle the multifunction switch from off through each of the auto/intermittent sensitivity settings.

    Do the PIDs correspond correctly with each setting selection? 

  6. E6 CHECK THE WINDSHIELD FOR DAMAGE 
    • Ignition OFF.
    • Inspect the windshield glass for any cracks, pits or other visible damage around the area of the rain sensor.

    Is any windshield damage present near the area of the rain sensor? 

  7. E7 CHECK THE WINDSHIELD GLASS FOR STREAKING 
    • Ignition ON.
    • Turn the multifunction switch to the low speed wiper setting and while applying water to the windshield surface. Observe the wipe quality, especially around the area or the rain sensor.

    Is any streaking present on the windshield around the area of the rain sensor? 

    • Yes  : GO to E8  .
    • No  : GO to  E10.
  8. E8 CHECK THE WINDSHIELD WIPER BLADES FOR STREAKING 
    • Ignition OFF.
    • Clean the windshield glass with glass cleaner.
    • Clean the wiper blades with isopropyl alcohol swabs. Wipe the entire length of the wiper blades.
    • Ignition ON.
    • Place the multifunction switch to the low speed wiper setting and while applying water to the windshield surface. Observe the wipe quality, especially around the area or the rain sensor.

    Was there noticeable improvement in the wipe quality after cleaning the glass and the wiper blades? 

    • Yes  : GO to E9  .
    • No  : INSTALL new wiper blades. GO to E9  .
  9. E9 RECHECK THE RAIN SENSITIVE WIPERS OPERATION 
    • Place the multifunction switch to the auto/intermittent 5 setting (most sensitive to moisture) while applying water on the windshield above the rain sensor.

    Do the wipers operate when water is applied to the windshield surface? 

    • Yes  : The system is operating correctly at this time. The concern may have been caused by poor wipe quality on the windshield around the rain sensor.
    • No  : GO to E10  .
  10. E10 CHECK FOR THE PRESENCE OF THE LENS GEL 
    • Ignition OFF.
    • Lightly press the rain sensor against the windshield and release the rain sensor clips.

    Does the rain sensor remain adhered to the windshield? 

    • Yes  : ATTACH the retaining clips. GO to E11  .
    • No  : The sensor gel-type lens is missing or damaged. INSTALL a new rain sensor. REFER to RAIN SENSOR .
  11. E11 INSPECT THE RAIN SENSOR MOUNTING AREA 
    NOTE: The rain sensor gel-type lens can be damaged or contaminated during rain sensor removal, rain sensor bracket separation or incorrect installation.
    • From the outside of the vehicle, inspect the area of the windshield glass where the rain sensor is mounted. The rain sensor contact area should appear black, with no bubbles, air pockets or contaminants between the windshield glass and the rain sensor.

    Does the rain sensor contact area appear black, with no bubbles, air pockets or contaminants between the windshield glass and the rain sensor? 

    • Yes  : GO to E12  .
    • No  : REMOVE and INSTALL the rain sensor correctly. REFER to RAIN SENSOR . TEST the system for normal operation.

      If the concern is still present, GO to  E15.

  12. E12 CHECK THE RAIN SENSOR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: Rain Sensor C914  .
    • Ignition ON.
    • Measure the voltage  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C914-1  SBB79 (YE) - Ground
      Fig 1: Identifying Rain Sensor Connector Terminal (C914-1)
      G09547321Courtesy of FORD MOTOR CO.

    Is the voltage greater than 11 volts? 

    • Yes  : GO to E13  .
    • No  : VERIFY BJB  fuse 79 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM WIRING DIAGRAMS to identify the possible causes of the circuit short.
  13. E13 CHECK THE RAIN SENSOR GROUND CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C914-3  GD133 (BK) - Ground
      Fig 2: Identifying Rain Sensor Connector Terminal (C914-3)
      G09547322Courtesy of FORD MOTOR CO.

    Is the resistance less than 3 ohms? 

    • Yes  : GO to E14  .
    • No  : REPAIR the circuit.
  14. E14 CHECK THE LIN CIRCUIT FOR AN OPEN 
    • Disconnect: SCCM C2414B  .
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C914-2  VDN05 (YE/GY) C2414A-20  VDN05 (YE/GY)
      Fig 3: Measuring Resistance Between Rain Sensor Connector Pins C914-2 And C2414A-20
      G07965876Courtesy of FORD MOTOR CO.

    Is the resistance less than 3 ohms? 

    • Yes  : GO to E15  .
    • No  : REPAIR the circuit.
  15. E15 CHECK FOR CORRECT RAIN SENSOR OPERATION 
    • Inspect the rain sensor connector.
    • 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 rain sensor connector. Make sure it seats and latches correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    • Yes  : INSTALL a new rain sensor. REFER to RAIN SENSOR . TEST the system for normal operation. If the concern is still present, INSTALL a new windshield wiper motor. REFER to WIPER MOTOR .
    • 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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