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windshield wiper help please


CORSASTS

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Hey fellas i need some help . my wipers stopped working on my 99 sts

i went and changed the motor but it still dosent work. i ran an amp tester

to the harness to test the handle and it works. Fuses seem to be good. the only choice left

is the dealer . if anybody knows anthing it would be great thanks

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Isn't there a relay?

I'm looking at my '94 GM Service Manual and I don't see anything about a relay. It says there is a fuse in the trunk compartment. Everything regarding non-working wipers indicates either a blown fuse, defective switch assembly, motor, bad ground connection, or open in power feed circuit.

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Not a whole lot to the circuit. Power from the ACC (10 Amp) fuse in the underhood fuse box. If the switch is giving you 12 volts on pin H of the wiper connector, you might try a redundant ground jumper from the motor frame to some convenient chassis location.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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Here is what it says on my Gm SI Tomcat...

1

Was the Wiper/Washer System Check performed?

--

Go to Step 2

Go to Wiper/Washer System Check or Wiper/Washer System Check

2

Turn the ignition switch to RUN.

Set the washer switch to ON.

Do the washers operate?

--

Go to Step 3

Go to Step 4

3

Replace the wiper motor. Refer to Wiper Motor Replacement .

Is the replacement complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

4

Disconnect the wiper harness connector from the wiper motor.

Connect a test light between wiper motor connector (harness side) terminals B and C.

Is the test light on?

--

Go to Step 10

Go to Step 5

5

Connect a test light from the wiper motor connector (harness side), terminal B, to ground.

Is the test light on?

--

Go to Step 9

Go to Step 6

6

Inspect for an open WSW fuse in the Underhood Junction Block.

Is the fuse open?

--

Go to Step 7

Go to Step 8

7

Disconnect Underhood Junction Block connector C2.

Measure the resistance from Underhood Junction Block connector C2, terminal F3, to ground with a J 39200 DMM.

Is the measurement less than the specified value?

0.5 ohms

Go to Step 17

Go to Step 18

8

Repair the open in CKT 143.

Is the repair complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

9

Repair the open in CKT 150.

Is the repair complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

10

Set the wiper switch to HI.

Connect a test light from the wiper motor connector (harness side), terminal H, to ground.

Is the test light on?

--

Go to Step 16

Go to Step 11

11

Inspect for an open ACC fuse in the Underhood Junction Block.

Is the fuse open?

--

Go to Step 12

Go to Step 13

12

Replace the ACC fuse.

Is the replacement complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

13

Inspect for an open in CKT 43.

Is an open present?

--

Go to Step 14

Go to Step 15

14

Repair the open in CKT 43.

Is the repair complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

15

Replace the Wiper/Washer switch. Refer to Wipers/Washer Switch Replacement .

Is the replacement complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

16

Replace the wiper motor cover. Refer to Wiper Motor Cover Replacement .

Is the replacement complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

17

Repair the short to ground in CKT 143.

Is the repair complete?

--

Go to Step 18

--

18

Replace the WSW fuse.

Is the replacement complete?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

Big Jay

I just noticed that it also says this...

Wipers/Washer Switch Replacement

The wiper/washer switch is located in the steering column as part of the Turn Signal and Multifunction Switch Assembly. For replacement, refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle

Here is a pic of it as well.

Big Jay

And this one.

picture of all the grounds on a 99STS

post-2417-1151688080.gif

post-2417-1151688136.gif

post-2417-1151688465.gif

Life is too short to grow up!

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  • 2 weeks later...

thanks for all your help guys

I am going to try and exchange the wiper motor i bought

it was a refurb one from a local auto store

hopefully thats the problem

i tested the harness with a test light and seemed to be fine

when i plug the motor in and turn the wipers on

the motor makes a ticking noise for about 3 secs then stops.

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