Is the fuse blown?

--

Go to Step 2

Go to Step 3

1. Check for a short circuit and repair it if necessary.
2. Replace the fuse.

Is the repair complete?

--

System OK

--

1. Ignition in ACC.
2. Probe the positive terminal of the fuse using a grounded test lamp.

Does the test lamp illuminate?

--

Go to Step 5

Go to Step 4

Repair the open circuit between the battery and the fuse.

Is the repair complete?

--

System OK

--

1. Ignition in ACC.
2. Probe the ignition + terminal at the wiper switch using a grounded test lamp.

Does the test lamp illuminate?

--

Go to Step 7

Go to Step 6

Repair the open circuit between the fuse and the switch.

Is the repair complete?

--

System OK

--

1. Ignition in ACC.
2. Wiper switch in LO.
3. Probe the GRA (91) wire at the wiper switch using a grounded test lamp.

Does the test lamp illuminate?

--

Go to Step 9

Go to Step 8

Replace the wiper/washer switch.

Is the repair complete?

--

System OK

--

1. Ignition OFF.
2. Check for an open circuit between the wiper switch and the wiper motor module.

Is there an open circuit?

--

Go to Step 10

Go to Step 11

Repair the open circuit between the switch and the motor module.

Is the repair complete?

--

System OK

--

1. Connect a fused jumper wire to the ground terminal at the wiper motor module.
2. Ignition in ACC.
3. Wiper switch in LO.

Do the wipers operate?

--

Go to Step 13

Go to Step 12

Replace the wiper motor module.

Is the repair complete?

--

System OK

--

Repair the open ground circuit for the wiper motor module.

Is the repair complete?

--

System OK

--