Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Wiper/Washer Connector End Views

DEFINITION: The windshield wiper motor will not operate in any mode.

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn ON the ignition.
2. Attempt to operate the wipers in each mode.

Do the windshield wipers operate in any mode?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Is DTC B3715 set in the body control module (BCM)?

Go to DTC B3715

Go to Step 4

1. Turn the wiper switch to the high speed position.
2. Disconnect the windshield wiper motor.
3. Probe the windshield wiper motor high and low speed circuits with a test lamp connected to a good ground.

Does the test lamp illuminate for either circuit?

Go to Step 14

Go to Step 5

1. Remove the wiper 2 relay from the underhood fuse block. Refer to Relay Replacement .
2. Probe the windshield wiper switch signal 2 circuit from the wiper switch with a test lamp connected to a good ground.

Does the test lamp illuminate?

Go to Step 6

Go to Step 10

Probe the common switched terminal of the high/low relay with a test lamp connected to a good ground.

Does the test lamp illuminate?

Go to Step 13

Go to Step 7

1. Remove the wiper 1 relay from the underhood fuse block. Refer to Relay Replacement .
2. Probe the windshield wiper switch signal 2 circuit from the BCM with a test lamp connected to a good ground.

Does the test lamp illuminate?

Go to Step 8

Go to Step 12

Connect a test lamp between the windshield wiper switch signal 2 circuit from the BCM and the coil ground circuit.

Does the test lamp illuminate?

Go to Step 9

Go to Step 24

Probe the wiper 1 relay voltage supply circuit with a test lamp connected to a good ground.

Does the test lamp illuminate?

Go to Step 16

Go to Step 22

1. Disconnect the connector containing the windshield wiper switch signal 2 circuit from the underhood junction block.
2. Probe the windshield wiper switch signal 2 circuit from the BCM with a test lamp connected to a good ground.

Does the test lamp illuminate?

Go to Step 21

Go to Step 11

1. Disconnect the wiper/washer switch.
2. Probe the wiper switch voltage supply circuit with a test lamp connected to a good ground.

Does the test lamp illuminate?

Go to Step 15

Go to Step 23

1. Remove the windshield wiper diode from the underhood fuse block.
2. Connect a 3-amp fused jumper between the diode terminals of the underhood fuse block. Refer to Using Fused Jumper Wires .
3. Probe the windshield wiper switch signal 2 circuit from the BCM with a test lamp connected to a good ground.

Does the test lamp illuminate?

Go to Step 18

Go to Step 30

Test the windshield wiper motor high and low speed circuits for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 17

Test the windshield wiper motor ground circuit for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 19

Test the windshield wiper switch signal 2 circuit from the switch for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 20

Inspect for poor connections at the windshield wiper 1 relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 25

Inspect for poor connections at the windshield wiper 2 relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 26

Inspect for poor connections at the windshield wiper diode. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 27

Inspect for poor connections at the windshield wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 28

Inspect for poor connections at the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 29

Inspect for poor connections at the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 31

Go to Step 30

Repair the open or high resistance in the wiper relay voltage supply circuit. Refer to Wiring Repairs and Connector Repairs .

Did you complete the repair?

Go to Step 31

--

Repair the open or high resistance in the wiper/washer switch voltage supply circuit. Refer to Wiring Repairs and Connector Repairs .

Did you complete the repair?

Go to Step 31

--

Repair the open or high resistance in the wiper 1 relay ground circuit. Refer to Wiring Repairs and Connector Repairs .

Did you complete the repair?

Go to Step 31

--

Replace the wiper 1 relay. Refer to Relay Replacement .

Did you complete the replacement?

Go to Step 31

--

Replace the wiper 2 relay. Refer to Relay Replacement .

Did you complete the replacement?

Go to Step 31

--

Replace the wiper diode.

Did you complete the replacement?

Go to Step 31

--

Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement .

Did you complete the replacement?

Go to Step 31

--

Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement .

Did you complete the replacement?

Go to Step 31

--

Replace the underhood fuse block. Refer to Underhood Electrical Center or Junction Block Replacement .

Did you complete the replacement?

Go to Step 31

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2