Pinpoint Test E : The Rain Sensitive Wiper Feature Is Inoperative

E1 CHECK THE LOW SPEED WIPER OPERATION

Ignition ON.

Place the wiper/washer switch to the low speed setting and observe the windshield wipers. Place the wiper/washer switch to the OFF setting.

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

Yes	GO to E2.
No	GO to Pinpoint Test B .

E2 CHECK FOR DTC B1131:02 OR B1131:08

Ignition ON.

Using a diagnostic scan tool, carry out the SCCM self-test.

Is DTC B1131:02 or B1131:08 present?

Yes	GO to Pinpoint Test B .
No	GO to E3.

E3 CHECK FOR DTC B10AD:02 OR B10AD:08
- Review the results from the SCCM self-test.
Is DTC B10AD:02 or B10AD:08 present?

Yes GO to E12.

No GO to E4.

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.

E5 CHECK THE MULTIFUNCTION SWITCH PIDs

Using a diagnostic scan tool, view the SCCM PIDs.

Using a diagnostic scan tool, monitor the following SCCM wiper/washer switch PIDs :
- Front Wiper Intermittent Data 1 (F_WIP_INT_D1)
- Front Wiper Intermittent Data 2 (F_WIP_INT_D2)
- Front Wiper Intermittent Data 3 (F_WIP_INT_D3)
- Front Wiper Intermittent Data 4 (F_WIP_INT_D4)
- Front Wiper Intermittent Data 5 (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?

Yes	GO to E6.
No	INSTALL a new multifunction switch. REFER to Steering Column Switches . TEST the system for normal operation. If the concern is still present, INSTALL a new SCCM. REFER to Steering Column Switches .

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?

Yes	INSTALL a new windshield. REFER to Glass, Frames and Mechanisms .
No	GO to E7.

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.

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.

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.

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 .

NOTE: The rain sensor gel-type lens can be damaged or contaminated during rain sensor removal, rain sensor bracket separation or incorrect installation.

E11 INSPECT THE RAIN SENSOR MOUNTING AREA

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, INSTALL a new rain sensor. REFER to Rain Sensor .

E12 CHECK THE RAIN SENSOR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: Rain Sensor C914 .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C914-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes	GO to E13.
No	VERIFY BJB fuse 80 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM ELECTRICAL WIRING DIAGRAM INTRODUCTION to identify the possible causes of the circuit short.

E13 CHECK THE RAIN SENSOR GROUND CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C914-1	Courtesy of FORD MOTOR COMPANY	C914-3

Is the voltage greater than 11 volts?

Yes	GO to E14.
No	REPAIR the circuit.

E14 CHECK THE RAIN SENSOR LIN CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: SCCM C226A .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C914-2	Courtesy of FORD MOTOR COMPANY	C226A-20

Is the resistance less than 3 ohms?

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 - Windshield .
No	REPAIR the circuit.