Chevrolet Non-Specific:

wiper motor vs switch

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# 1  10/28/2010 6:24 PM

skody54
New member
Registered: 10/28/2010
Posts: 3

wiper motor vs switch

My vehicle is a 1997 Chevy Suburban but this question would apply to many GM models. My washers and slow speed do not work but the fast speed does. How do I qualify which component to replace?

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# 2  10/29/2010 2:17 AM

TechHelp2
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Registered: 11/24/2009
Posts: 1299

Re: wiper motor vs switch

Disconnect the wire harness from the motor. Connect 12 volt positive battery voltage to the number 3 low speed terminal of the motor.

If motor runs in low speed then repair the open in wire terminal #3 to the switch or replace the switch.

This is for wipers without Pulse Delay.

If you have Pulse Delay let me know.


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# 3  10/29/2010 3:18 AM

skody54
New member
Registered: 10/28/2010
Posts: 3

Re: wiper motor vs switch

TechHelp2 wrote:

Disconnect the wire harness from the motor. Connect 12 volt positive battery voltage to the number 3 low speed terminal of the motor.

If motor runs in low speed then repair the open in wire terminal #3 to the switch or replace the switch.

This is for wipers without Pulse Delay.

If you have Pulse Delay let me know.

Thanks for your reply. I take it 'pulse delay' are intermittent, then yes.

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# 4  10/29/2010 8:23 PM

TechHelp2
Administrator
Registered: 11/24/2009
Posts: 1299

Re: wiper motor vs switch

It still should be the same diagnosis.


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# 5  10/30/2010 1:26 AM

skody54
New member
Registered: 10/28/2010
Posts: 3

Re: wiper motor vs switch

TechHelp2 wrote:

It still should be the same diagnosis.

Thanks again.

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