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Home >> Ford >> 2005 >> Escape Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1241 (Wiper System & Washer System) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test E: The Rain Sensitive Wipers Do Not Operate >> Pinpoint Test E: The Rain Sensitive Wipers Do Not Operate

Pinpoint Test E: The Rain Sensitive Wipers Do Not Operate

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. 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. E1 CHECK THE RAIN SENSITIVE WIPERS FOR INTERMITTENT OPERATION 
    • Ignition ON.
      NOTE: When an inoperative condition exists in the rain sensitive wiper system, the rain sensitive wiper system will default to an intermittent wiper system if the rain sensor fault occurred prior to the ignition in the RUN position.
      NOTE: Make sure the windshield is dry when carrying out this step.
      NOTE: The wipers will make a single wipe of the windshield when the multifunction switch is initially set to 1 of the 5 intermittent settings. This single wipe should not be considered part of an intermittent wiper operation.
    • Turn the multifunction switch to one of the 5 intermittent settings.
    • Do the wipers operate intermittently? 
    • Yes:  GO to  E3.
    • No:  GO to  E2.
  2. E2 CHECK THE RAIN SENSITIVE WIPERS OPERATION 
    NOTE: The multifunction switch and circuits are identical for rain sensitive and intermittent wiper systems.
    • Turn the multifunction switch to each of the 5 intermittent settings while applying water on the windshield above the rain sensor.
    • Do the wipers operate in all intermittent positions? 
    • Yes:  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
    • No:  Go To PINPOINT TEST D . CHECK specifically for intermittent multifunction switch operation and/or associated wiring problems.
  3. E3 CHECK VOLTAGE TO THE RAIN SENSOR MODULE 
    • Ignition OFF.
    • Disconnect: Rain Sensor Module C914.
    • Ignition ON.
    • Measure the voltage between the rain sensor module C914-4 circuit CBP43 (GY), harness side and ground.
      Fig 1: Checking Circuit
      G06173881Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to  E4.
    • No:  REPAIR the circuit. TEST the system for normal operation.
  4. E4 CHECK GROUND TO THE RAIN SENSOR MODULE 
    • Ignition OFF.
    • Measure the resistance between rain sensor module C914-1, circuit GD139 (BK/YE), harness side and ground.
      Fig 2: Checking Circuit
      G06173882Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to  E5.
    • No:  REPAIR the circuit. TEST the system for normal operation.
  5. E5 CHECK RAIN SENSOR MODULE OUTPUT FOR A SHORT TO VOLTAGE 
    • Ignition ON.
    • Measure the voltage between rain sensor module C914-2, circuit VRW06 (GN/WH), harness side and ground.
      Fig 3: Checking Circuit
      G06173883Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes:  REPAIR the circuit. TEST the system for normal operation.
    • No:  GO to  E6.
  6. E6 CHECK RAIN SENSOR MODULE OUTPUT FOR AN OPEN OR SHORT 
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