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Old 08-01-2013, 02:50 AM   #1
MCharlie
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Location: Reno Nevada
Default Right (Passenger) seat motor

2006 C6 Base.

Battery suddenly started dying after sitting 24-48 hours. Battery is new. (AC Delco, installed 3 months ago!)

Took battery out, did a full charge, then load tested it..60 amps for 15 seconds with my trusty old Sun VAT-40. Surface reading was 12.9 volts before load, after load test, 12.3 volts. Definitely not a battery problem. Re-installed in vehicle, found a full 6 volt 2.5 amp draw.

Then, I heard a steady click from within the car, every 5 seconds or so....on the Passenger side...got down to listen and found a plastic bag on the right seat motor, melting. WHOA...not right, the clicking came from there as well. I immediately unplugged the seat and no more clicking and no more battery draw.

This morning, I plugged the seat back in...no clicking this time, but the motor immediately got hot....seat still worked fine...forward and back, up and down, and tilt. Unplugged it again. The little red seat belt indicator in the instrument cluster, is driving me nuts, so I have got to get this fixed, soonestkind!

So....Bad motor? One of the switches bad? Is there a relay in there that controls the seat function?

If the consensus is motor, are there any cross reference part numbers with any other GM cars?

MC
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Old 08-01-2013, 08:57 AM   #2
Chevy Cust Svc
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Hey MCharlie,

I can get you the part number for the seat motor if you would like. Send me your VIN in a PM and indicate the part numbers you need. I should have an answer by tomorrow. Thanks,

Kelly J.
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Old 08-01-2013, 10:49 AM   #3
RicK T
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I think you need to do more diagnosing to be sure. The motor can't get current without it passing through the switch, right? I'm trying to visualize it, but I think you should start at the switch. But look for any obvious problems under the seat and around the motor, like frayed wires shorting against the frame which are somewhat common, especially if the seat is moved often.
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Old 08-01-2013, 11:22 AM   #4
MCharlie
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Quote:
Originally Posted by RicK T View Post
I think you need to do more diagnosing to be sure. The motor can't get current without it passing through the switch, right? I'm trying to visualize it, but I think you should start at the switch. But look for any obvious problems under the seat and around the motor, like frayed wires shorting against the frame which are somewhat common, especially if the seat is moved often.
I have to get my wiring diagrams out for the car...I need to see if the motor is ground activated or positive activated. I *assume* the switch is ok...it works just fine.

As for the seat use..it rarely gets used. I don't really care about adjusting the seat, but I don't like the wiring harness unplugged because the right, seat occupied, air bag sensor is inop.

Anything else someone might think of, that I need to check, PLEASE, let me know. (I am not afraid to tear into the wiring...I worked as a mechanic for 30 years..all at dealerships, never at an independent. Even put in 3 years at Hallman Chevrolet, from 1979 to 1982...working exclusively on Corvettes'!) (Remember how those damned T-Tops would leak?!!)

Anywho......looking forward to any and all suggestions...Thanks in advance!

BTW, Kelly, I will get the VIN and year to you if I determine a motor is what I will need. (I don't think it is, but will find out!!)

MC
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Old 08-02-2013, 08:41 PM   #5
Bill Dearborn
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Check the power seat switch on the side of the seat to make sure it isn't sticking in the forward or backward position. They can get hung up on the bezel if bumped hard enough by somebody. I installed a power passenger seat in my 08Z and when I hooked up the harness the seat motor started running. A quick look at the switch showed it was stuck in the reverse position while the seat was all the way back. Once I reseated the bezel so the switch button cleared it the problem went away.

May not be your issue but worth taking some time to open the door and checking the switch.

Bill
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Old 08-02-2013, 08:41 PM
 
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