Contents: Signs of malfunction - windshield… ↧ Windscreen washers not working ↧ Windscreen wipers are constantly on ↧ Windscreen wipers do not work - in… ↧ Windscreen wipers do not work - in… ↧ Windscreen wipers do not work - in… ↧ Windscreen wipers do not work - in… ↧ Windscreen wipers do not work - in… ↧
Signs of malfunction - windshield wiper and washer system
Important: Before using the symptom charts, you must complete the following steps.
1. Perform the Post-Repair Diagnostic Check after completing the diagnostic procedure in Section 9V, Body Control Module, Vehicle DTC Information, before using the symptom charts to verify that the following conditions are true.
- There are no fault codes.
- Controllers can communicate via a serial communication line.
2. View the system operation to become familiar with the system functions. See "Wiper and Washer System Description and Operation" in this section.
Visual inspection / physical control
- Inspect aftermarket equipment that may affect the operation of the wiper/washer system. Check additional aftermarket systems.
- Inspect easily accessible and visible parts of the system for obvious signs of damage or conditions that could lead to malfunction.
- Before you begin diagnosing the electrical part of the system, make sure that all mechanical components are in good working order.
Intermittent fault
Faulty electrical connections or wiring may cause intermittent faults. Refer to "Testing for Intermittent Failure and Poor Connector Contact" in Section 9A, "Body Wiring Systems".
Windscreen washers not working
| Step | Operation | Values | Yes | No |
| 1 |
Has the vehicle system diagnostic check been completed?
Is fuse F17 blown?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
| 2 |
Check for a faulty windshield washer.
Do the windshield washers operate as described?
|
-
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Go to Step 3
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|
| 3 |
Is the indicator light on?
|
-
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Go to Step 4
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Go to Step 8
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| 4 |
Is the indicator light on?
|
-
|
Go to Step 5
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Go to Step 7
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| 5 |
Is the indicator light on?
|
-
|
Go to Step 9
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Go to Step 6
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| 6 |
Is the indicator light on?
|
-
|
Go to Step 10
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Go to Step 11
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| 7 |
Has the cause been found and corrected?
|
-
|
Go to Step 14
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Go to Step 10
|
| 8 |
Has the cause been found and corrected?
|
-
|
Go to Step 14
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Go to Step 10
|
| 9 |
Inspect the windshield washer pump for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 14
|
Go to Step 12
|
| 10 |
Inspect the windshield wiper/washer switch for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 14
|
Go to Step 13
|
| 11 |
Eliminate open circuit or increased resistance in the ground circuit.
Is the renovation completed?
|
-
|
Go to Step 14
|
-
|
| 12 |
Replace the windshield washer fluid pump.
Is the replacement complete?
|
-
|
Go to Step 14
|
-
|
| 13 |
Replace windshield wiper/washer switch.
Is the replacement complete?
|
-
|
Go to Step 14
|
-
|
| 14 |
Operate the system to check if the problem has been corrected.
Has the cause been eliminated?
|
-
|
The system is normal
|
Go to Step 2
|
Windscreen wipers are constantly on
| Step | Operation | Values | Yes | No |
| 1 |
Has the vehicle system diagnostic check been completed?
Is fuse F17 blown?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
| 2 |
Are the windshield wipers off?
|
-
|
Go to Step 3
|
|
| 3 |
Do the rear wipers work all the time?
|
-
|
Go to Step 4
|
Go to Step 7
|
| 4 |
Are the rear wipers off?
|
-
|
Go to Step 5
|
Go to Step 6
|
| 5 |
Is the indicator light on?
|
-
|
Go to Step 8
|
Go to Step 16
|
| 6 |
Check the rear wiper motor control circuit for a short to supply voltage.
Has the cause been found and corrected?
|
-
|
Go to Step 20
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Go to Step 14
|
| 7 |
Are the front wipers off?
|
-
|
Go to Step 9
|
Go to Step 15
|
| 8 |
Is the indicator light on?
|
-
|
Go to Step 10
|
Go to Step 12
|
| 9 |
Connect a test lamp between the rear wiper switch pulse delay signal circuit at the wiring harness connector and a good ground.
Is the indicator light on?
|
-
|
Go to Step 11
|
Go to Step 13
|
| 10 |
Check the rear wiper switch signal circuit for a short to supply voltage.
Has the cause been found and corrected?
|
-
|
Go to Step 20
|
Go to Step 13
|
| 11 |
Check the windshield wiper motor pulse delay signal circuit for a short to supply voltage.
Has the cause been found and corrected?
|
-
|
Go to Step 20
|
Go to Step 12
|
| 12 |
Check for bad contacts on the body controller.
Has the cause been found and corrected?
|
-
|
Go to Step 20
|
Go to Step 19
|
| 13 |
Inspect the windshield wiper/washer switch for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 20
|
Go to Step 18
|
| 14 |
Inspect the rear wiper motor for poor contact.
Has the cause been found and corrected?
|
-
|
Go to Step 20
|
Go to Step 17
|
| 15 |
Repair short to voltage in high speed circuit or low speed circuit of windshield wiper motor.
Is the renovation completed?
|
-
|
Go to Step 20
|
-
|
| 16 |
Replace the rear wiper relay.
Is the replacement complete?
|
-
|
Go to Step 20
|
-
|
| 17 |
Replace the rear wiper motor.
Is the replacement complete?
|
-
|
Go to Step 20
|
-
|
| 18 |
Replace windshield wiper/washer switch.
Is the replacement complete?
|
-
|
Go to Step 20
|
-
|
| 19 |
Replace BCM. See. Section 9B, "Body Controller".
Is the replacement complete?
|
-
|
Go to Step 20
|
-
|
| 20 |
Operate the system to check if the problem has been corrected.
Has the cause been eliminated?
|
-
|
The system is normal
|
Go to Step 2
|
Windscreen wipers do not work - in one or more modes (front windshield wipers)
| Step | Operation | Values | Yes | No |
| 1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
| 2 |
Is the windshield wiper system working properly?
|
-
|
Go to Step 3
|
|
| 3 |
Is the indicator light on?
|
-
|
Go to Step 4
|
Go to Step 5
|
| 4 |
Inspect the wiring harness connector at the windshield wiper/washer switch for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 7
|
Go to Step 6
|
| 5 |
Repair open or short to ground in auxiliary supply voltage circuit.
Is the renovation completed?
|
-
|
Go to Step 7
|
-
|
| 6 |
Replace windshield wiper/washer switch.
Is the replacement complete?
|
-
|
Go to Step 7
|
-
|
| 7 |
Operate the system to check if the problem has been corrected.
Has the cause been eliminated?
|
-
|
The system is normal
|
Go to Step 2
|
Windscreen wipers do not work - in one or more modes (front windshield wipers)
Diagnostic recommendations
The wash mode in this diagnostic procedure is defined as the mode when the wiper switch is in the OFF position and only the windshield washer switch is pressed. When the washer switch is turned on with the wipers off, the wipers should wipe the windshield 3-5 times and return to the park position.
Description of the test
The numbers below represent steps in the diagnostic chart.
2. This step determines which windshield wiper functions are not working. The windshield wipers should work in all active windshield wiper switch positions. When the windshield wiper switch is OFF and only the windshield washer switch is pressed, the windshield wipers should wipe the windshield 3-5 times and return to the park position.
6. This step determines which specific circuits or devices may be causing the malfunction. If the wash, park, and intermittent modes do not operate, the malfunction may be in the mist/off/slow signal circuit at the windshield wiper switch and its associated components. When the wipers operate in the park mode but do not operate in either the intermittent or wash modes, the auxiliary voltage circuit at the front wiper relay (FRT WIPER) and its associated components should be checked.
- This stage is performed when the windshield wipers do not wipe the windshield when only the windshield washer switch is activated.
- This step is performed when the windscreen wipers continue to operate in all glass cleaning modes, but do not return to the parking position completely down. If this fault is present during intermittent operation, the windscreen wipers usually do not return to the lowest position. Instead, they stop at an arbitrary position on the windscreen in between the periodic swipes of the windshield wipers. Alternatively, if the windscreen wipers are operating in high or low speed mode, they stop in the middle of the stroke when the windscreen wiper switch is set to OFF.
Windscreen wipers do not work - in one or more modes (front windshield wipers)
| Step | Operation | Values | Yes | No |
| 1 |
Has the vehicle system diagnostic check been completed?
Is fuse F17 blown?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
| 2 |
Are your windshield wipers working properly?
|
-
|
Go to Step 3
|
|
| 3 |
Windshield wipers not working at all?
|
-
|
Go to Step 10
|
Go to Step 4
|
| 4 |
Windshield wipers not working in all modes except high speed?
|
-
|
Go to Step 11
|
Go to Step 5
|
| 5 |
Windscreen wipers not working in intermittent mode?
|
-
|
Go to Step 6
|
Go to Step 7
|
| 6 |
In addition to the intermittent mode, do the wipers not operate in one or both of the following modes?
|
-
|
Go to Step 17
|
Go to Step 14
|
| 7 |
Important: When only the windshield washer is activated with the wiper switch off, the wipers should wipe the windshield 3-5 times and return to the parking position. The wipers do not work in the wash mode only. |
-
|
Go to Step 12
|
Go to Step 8
|
| 8 |
Windscreen wipers not working only in parking mode?
|
-
|
Go to Step 13
|
Go to Step 9
|
| 9 |
Windscreen wipers do not work only in high speed mode.
Is the indicator light on?
|
-
|
Go to Step 24
|
Go to Step 22
|
| 10 |
The windshield wipers do not work at all.
Is the indicator light on?
|
-
|
Go to Step 16
|
Go to Step 29
|
| 11 |
The windshield wipers operate only at high speed.
Is the indicator light on?
|
-
|
Go to Step 24
|
Go to Step 20
|
| 12 |
The windshield wipers do not work in wash mode only.
Is the indicator light on?
|
-
|
Go to Step 25
|
Go to Step 21
|
| 13 |
The windshield wipers do not work only in parking mode.
Is the chain broken?
|
-
|
Go to Step 15
|
Go to Step 24
|
| 14 |
The windshield wipers do not work only in the intermittent switching mode.
Does the indicator light come on in all intermittent switch positions?
|
-
|
Go to Step 25
|
Go to Step 23
|
| 15 |
Is the indicator light on?
|
-
|
Go to Step 33
|
Go to Step 30
|
| 16 |
Does the indicator light come on in both high and low speed positions?
|
-
|
Go to Step 24
|
Go to Step 26
|
| 17 |
Is the indicator light on?
|
-
|
Go to Step 18
|
Go to Step 28
|
| 18 |
Is the indicator light on?
|
-
|
Go to Step 19
|
Go to Step 27
|
| 19 |
Using a test lamp connected to ground, check the low speed signal circuit at the windshield wiper switch terminals.
Is the indicator light on?
|
-
|
Go to Step 33
|
Go to Step 26
|
| 20 |
Check the windshield wiper motor low speed circuit for an open.
Has the cause been found and corrected?
|
-
|
Go to Step 35
|
Go to Step 26
|
| 21 |
Check the windshield washer pump circuit for an open circuit.
Has the cause been found and corrected?
|
-
|
Go to Step 35
|
Go to Step 26
|
| 22 |
Check the windshield wiper motor high speed circuit for an open.
Has the cause been found and corrected?
|
-
|
Go to Step 35
|
Go to Step 26
|
| 23 |
Check the windshield wiper motor pulse delay signal circuit for an open.
Has the cause been found and corrected?
|
-
|
Go to Step 35
|
Go to Step 26
|
| 24 |
Inspect the wiring harness connector at the windshield wiper motor for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 35
|
Go to Step 32
|
| 25 |
Check for poor contact at the body control module (BCM) wiring harness connector.
Has the cause been found and corrected?
|
-
|
Go to Step 35
|
Go to Step 34
|
| 26 |
Inspect the wiring harness connector at the windshield wiper/washer switch for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 35
|
Go to Step 31
|
| 27 |
Repair open or high resistance in windshield wiper switch circuit.
Is the renovation completed?
|
-
|
Go to Step 35
|
-
|
| 28 |
Eliminate open circuit or increased resistance in the auxiliary power supply circuit.
Is the renovation completed?
|
-
|
Go to Step 35
|
-
|
| 29 |
Repair the ground circuit break.
Is the renovation completed?
|
-
|
Go to Step 35
|
-
|
| 30 |
Repair open or high resistance in the windshield wiper motor parking signal circuit.
Is the renovation completed?
|
-
|
Go to Step 35
|
-
|
| 31 |
Replace windshield wiper/washer switch.
Is the replacement complete?
|
-
|
Go to Step 35
|
-
|
| 32 |
Replace the windshield wiper motor.
Is the replacement complete?
|
-
|
Go to Step 35
|
-
|
| 33 |
Replace the front wiper relay.
Is the replacement complete?
|
-
|
Go to Step 35
|
-
|
| 34 |
Replace BCM. See Section 9V, Body Control Module.
Is the replacement complete?
|
-
|
Go to Step 35
|
-
|
| 35 |
Operate the system to check if the problem has been corrected.
Has the cause been eliminated?
|
-
|
The system is normal
|
Go to Step 2
|
Windscreen wipers do not work - in one or more modes (rear wipers)
Diagnostic recommendations
Except in the wash mode, the rear wiper wipes the rear window at a delay time interval. When the rear wiper system is on, the time period between strokes can be adjusted by selecting one of three delay values using the windshield wiper switch.
In the washer mode, if the rear wiper switch is briefly turned to the ON position, the rear wiper will wipe the rear window 3-5 times and return to the parking position. However, if the rear wiper switch is held in the ON position, the rear wipers will continue to operate until the switch is released.
Although the delay period of both the front and rear wipers is controlled by selecting the position of the windshield wiper switch, the delay period of the rear wiper is not synchronized with the delay period of the front wipers.
The rear wiper should stop in the park position whenever it is not operating. However, if the ignition key is turned to the OFF position while the rear wiper is operating, the wiper will stop in its current position on the glass.
Description of the test
The numbers below represent steps in the diagnostic chart.
2. This step determines whether the rear wiper operates normally when only the rear washer switch is activated. When the rear washer switch is operated with the rear wiper OFF, the rear wiper should wipe the glass 3-5 times and return to the park position.
6. This step helps to identify the specific fault. The rear wiper park mode may be the only function that does not work. When the rear wiper switch is turned ON, the rear wiper should stop in the park position between periodic wipes. When the rear wiper switch is turned OFF, the rear wiper should stop in the park position and remain in the park position until one of the wipe or wash modes is activated.
Windscreen wipers do not work - in one or more modes (rear wipers)
| Step | Operation | Values | Yes | No |
| 1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
| 2 |
Does the rear wiper work?
|
-
|
Go to Step 3
|
Go to Step 5
|
| 3 |
Does the rear wiper work?
|
-
|
Go to Step 4
|
Go to Step 7
|
| 4 |
Important: When the rear wiper is not in the windshield washer mode, it only operates in the delay modes. When the rear wiper is on, it should stop in the park position between periodic wipes. When the rear wiper is off, it should return to the park position and remain in this position until one of the wipe or wash modes is turned on again.
Does the rear wiper set to the proper down position when in park?
|
-
|
Go to Step 9
|
|
| 5 |
Set the rear window washer switch to the on position.
Does the rear window wiper work?
|
-
|
Go to Step 8
|
Go to Step 6
|
| 6 |
Is the indicator light on?
|
-
|
Go to Step 10
|
Go to Step 20
|
| 7 |
Is the indicator light on?
|
-
|
Go to Step 17
|
Go to Step 13
|
| 8 |
Is the indicator light on?
|
-
|
Go to Step 17
|
Go to Step 14
|
| 9 |
Using a test lamp connected to a reliable ground, check the auxiliary voltage supply circuit to the rear window wiper motor.
|
-
|
Go to Step 16
|
Go to Step 19
|
| 10 |
Does the rear wiper work?
|
-
|
Go to Step 24
|
Go to Step 11
|
| 11 |
Is the indicator light on?
|
-
|
Go to Step 12
|
Go to Step 21
|
| 12 |
Connect a test lamp between the rear wiper motor control circuit and the rear wiper motor ground circuit.
Is the indicator light on?
|
-
|
Go to Step 16
|
Go to Step 18
|
| 13 |
Check the rear window washer pump control circuit for an open or high resistance.
Has the cause been found and corrected?
|
-
|
Go to Step 26
|
Go to Step 15
|
| 14 |
Check the rear wiper switch signal circuit for an open or high resistance.
Has the cause been found and corrected?
|
-
|
Go to Step 26
|
Go to Step 15
|
| 15 |
Inspect the wiring harness connector at the windshield wiper/washer switch for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 26
|
Go to Step 22
|
| 16 |
Inspect the wiring harness connector at the rear window wiper motor for poor connections.
Has the cause been found and corrected?
|
-
|
Go to Step 26
|
Go to Step 23
|
| 17 |
Check the body controller wiring harness connector for poor connection.
Has the cause been found and corrected?
|
-
|
Go to Step 26
|
Go to Step 25
|
| 18 |
Eliminate open circuit or increased resistance in the ground circuit of the rear window wiper motor.
Is the renovation completed?
|
-
|
Go to Step 26
|
-
|
| 19 |
Repair open or high resistance in auxiliary voltage circuit between rear wiper relay terminal block (REAR WIPER) and an electric windshield wiper motor.
Is the renovation completed?
|
-
|
Go to Step 26
|
-
|
| 20 |
Eliminate open circuit or increased resistance in the auxiliary power supply circuit.
Is the renovation completed?
|
-
|
Go to Step 26
|
-
|
| 21 |
Repair open or high resistance in rear wiper motor control circuit.
Is the renovation completed?
|
-
|
Go to Step 26
|
-
|
| 22 |
Replace windshield wiper/washer switch.
Is the replacement complete?
|
-
|
Go to Step 26
|
-
|
| 23 |
Replace the rear window wiper motor.
Is the replacement complete?
|
-
|
Go to Step 26
|
-
|
| 24 |
Replace the rear wiper relay.
Is the replacement complete?
|
-
|
Go to Step 26
|
-
|
| 25 |
Jump to section 9V, "Body controller".
Has the cause been found and corrected?
|
-
|
Go to Step 26
|
-
|
| 26 |
Operate the system to check if the problem has been corrected.
Has the cause been eliminated?
|
-
|
The system is normal
|
Go to Step 2
|