Checking wiper elements (vehicles up to 08.2001)

Windshield wiper motor

• Turn off the ignition
• Unplug the connector.
• Using the connecting wire, prepare the test procedure according to the following description.
• Use an external 12V continuous current source capable of carrying up to 10A minimum, or use battery voltage with a fuse.

1. Check the wiper motor in SLOW WIPER mode.

• Connect the positive terminal of the power supply to the positive terminal of the DMM.
• Connect the negative terminal of the power supply to pin 1 of the wiper motor.
• Connect the negative terminal of the DMM to pin 5 of the wiper motor. The wiper motor will operate at low speed.

Measure the current

Is the value on the DMM close to 1.5 A? If yes, go to step 2.

If not, INSTALL a new windshield wiper motor.

2. Check wiper motor in HIGH SPEED WIPER mode (drawing VFE0002216)

• Connect the positive terminal of the power supply to the positive terminal of the DMM.
• Connect the negative terminal of the power supply to pin 1 of the wiper motor.
• Connect the negative terminal of the DMM to pin 4 of the wiper motor. The wiper motor will operate at high speed.

Measure the current

Is the value on the DMM close to 2.2A? If yes, go to step 3.


If not, INSTALL a new windshield wiper motor.

3. Check wiper motor in OFF position



Measure the resistance at the windshield wiper motor, between pin 2 and the wiper motor housing.

Is the resistance less than 2 ohms? If yes, go to step 4.

If not, GO to step 4 and REPEAT this test step (If still not, INSTALL a new windshield wiper motor).

4. Check the OFF position function of the wiper motor.

• Connect the positive terminal of the power supply to pin 5 of the wiper motor.
• Connect the negative terminal of the power supply to pin 2 of the wiper motor.
• Connect the connecting wire to the wiper motor, between pin 1 and pin 3.

Determine state

Does the wiper motor move to the OFF position?


If so, the windshield wiper motor is OK.

If not, INSTALL a new windshield wiper motor.

Rear wiper motor

• Switch off the ignition.
• Unplug the connector.
• Using the connecting wire, prepare the test procedure according to the following description.
• Use an external 12V continuous current source capable of carrying up to 10A minimum, or use battery voltage with a fuse.

1. Check the wiper motor in the ON position.

• Connect the positive terminal of the power supply to the positive terminal of the DMM.
• Connect the negative terminal of the power supply to the wiper motor housing.
• Connect the negative terminal of the DMM to pin 2 of the wiper motor. The wiper motor will operate.

Measure the current

Is the value on the DMM close to 1.5 A? If yes, go to step 2.

If not, INSTALL a new rear wiper motor.

2. Check the OFF function of the wiper motor

• Connect the positive terminal of the power supply to pin 1 of the wiper motor.
• Connect the negative terminal of the power supply to the wiper motor housing.

Determine state

Does the wiper motor move to the OFF position?


If so, the rear window wiper motor is OK.

If not, INSTALL a new rear wiper motor.

Relay

• Windshield Wiper Relay
• Rear window wiper relay

1. Check the relay contact is normal (closed position)

Measure the resistance across the relay between pin 3 and pin 4.

Is the resistance less than 1 ohm? If yes, go to step 2. If not, INSTALL a new relay.

2. Check the relay contact is normal (open position)



Measure the resistance across the relay between pin 3 and pin 5.

Is the resistance greater than 10 kΩ? If yes, go to step 3. If not, INSTALL a new relay.

3. Check the relay contact is active (closed position)

Using the connecting wire, prepare the test procedure according to the following description.

• Connect the positive battery terminal to pin 1 of the relay.
• Connect the negative battery terminal to pin 2 of the relay.

Measure the resistance across the relay between pin 3 and pin 5.

relay switches (with a distinct click), when battery voltage is applied and the resistance is less than 1 ohm?

If so, the relay is good. If not, INSTALL a new relay.

Wiper/Washer Switch

Functions to be tested	Digital multimeter pins	Switch position	Targets
INTERMITTENT CLEANING	6 and 10	"one touch"	more than 10 kOhm
		turned off	more than 10 kOhm
		Intermittent cleaning	less than 1 ohm
		low speed cleaning	more than 10 kOhm
		high speed cleaning	more than 10 kOhm
	7 and 9	"one touch"	more than 10 kOhm
		turned off	less than 1 ohm
		Intermittent cleaning	less than 1 ohm
		low speed cleaning	more than 10 kOhm
		high speed cleaning	more than 10 kOhm
	1 and 6	"one touch"	more than 10 kOhm
		turned off	more than 10 kOhm
		Intermittent cleaning	See adjustable intermittent cleaning
		low speed cleaning	more than 10 kOhm
		high speed cleaning	more than 10 kOhm
ADJUSTABLE INTERMITTENT CLEANING	1 and 10	1	1 kOhm
		2	10 kOhm
		3	20 kOhm
		4	30 kOhm
		5	40 kOhm
		6	47 kOhm
"ONE TOUCH"	6 and 9	"one touch"	less than 1 ohm
		turned off	more than 10 kOhm
		Intermittent cleaning	more than 10 kOhm
		low speed cleaning	more than 10 kOhm
		high speed cleaning	more than 10 kOhm
LOW SPEED CLEANING	6 and 9	"one touch"	more than 10 kOhm
		turned off	more than 10 kOhm
		Intermittent cleaning	more than 10 kOhm
		low speed cleaning	less than 1 ohm
		high speed cleaning	more than 10 kOhm
high speed cleaning	6 and 8	"one touch"	more than 10 kOhm
		turned off	more than 10 kOhm
		low speed cleaning	more than 10 kOhm
		low speed cleaning	more than 10 kOhm
		high speed cleaning	less than 1 ohm
windshield washer	2 and 6	turned off	less than 1 ohm
		Included	more than 10 kOhm
	2 and 3	turned off	more than 10 kOhm
		Included	less than 1 ohm
REAR WINDOW WASHER	3 and 5	turned off	less than 1 ohm
		rear window cleaner	more than 10 kOhm
		rear window washer	more than 10 kOhm
	4 and 6	turned off	less than 1 ohm
		rear window cleaner	less than 1 ohm
		rear window washer	more than 10 kOhm
	3 and 4	turned off	more than 10 kOhm
		rear window cleaner	more than 10 kOhm
		rear window washer	less than 1 ohm
	5 and 6	turned off	more than 1 ohm
		rear window cleaner	less than 1 ohm
		rear window washer	less than 1 ohm