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There is only one fuse that controls all of the motors on one seat, so the issue is not a fuse or relay,

The motor for the back rest is is the back rest itself. Remove the four bolts the hold the seat to the floor and tilt it backwards. coming out of the inside of the back rest you should see two wires, Blue and Pink. There these two wires go to a connector with Brown and Pink wires.

With the key on or the engine running back probe either wire at the connector with a test light and then operate the switch in both directions. One directional move should change the wire to positive, which shows that the motor is getting current.

If it does get current then you must check the connector and if OK then you probably need a motor.
 

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I have this exact same problem. Thought it was a switch and bought a replacement. Didn't fix the problem. I'll try and remove seat and test motor. Will report my findings.
 

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I have this exact same problem. Thought it was a witch and bought a replacement. Didn't fix the problem. I'll try and remove seat and test motor. Will report my findings.
Please do - we could all have these issues at any point.

Hope this fixes it for you - David
 

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I did exactly as 43sqd said. After downloading and viewing the pdf above I went and bought a used recline seat motor from a near by scrap yard in anticipation of a bad motor. Motor was tested with 12V car battery and the shaft spun like its supposed to (good motor).

1. Removed back seat cover on driver side (two Phillip screws at the bottom). Located seat motor wiring harness
2. Turned key to position 2 and back probed connector wiring while operating the recline switch.
Findings:
1. No voltage at connector therefore motor is not receiving power
2. Brought a 12v car battery close to back of driver seat and tested motor directly. Motor activated and recline seat moved. (motor is working)
3. I back probed switch wiring harness using test light. There are 4 wires at the switch harness: green, orange, white and blue. The blue wire activate the forward /backwards movement motor, the orange wire activate the up/down motor. The green and white wire did nothing.
Conclusion:
It's either
1. There is problem with the wiring
2. Or the seat control module is faulty

Any ideas how to test seat wiring? Or control module?
 

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Sorry for asking those questions which you already provided in previous posts.

The WHITE wire provides GROUND to all seat movements from the module.

Provide GROUND to the GREEN wire and see if the back rest moves.
 

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Sorry for asking those questions which you already provided in previous posts.

The WHITE wire provides GROUND to all seat movements from the module.

Provide GROUND to the GREEN wire and see if the back rest moves.
How do I provide Ground to green wire?
 

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First check the WHITE wire for GROUND with a DVOM, with the key out of the ign. and then with the key on.

With a wire stripped at both ends, one end at one of the seat bolts and the other to the GREEN wire.
 

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Checked wiring harness for ground
1. (key out)
Using test light (clamp connected to +ve battery terminal)
White wire lights up, other wires nothing

With DVOM
Voltage setting
Green wire 0v
Orange wire 5v
White wire no 0V
Blue wire 5v

Resistance setting
Green wire no resistance
Orange wire no resistance
White wire with resistance
Blue wire no resistance

Continuity setting
Green wire nothing
Orange wire nothing
White wire has continuity
Blue wire nothing

2. (key in)
Same result as above

3. With a strip of wire
Using test light (clamp connected to +ve battery terminal)
White wire lights up,
Green wire lights up
other wires nothing

With DVOM
Voltage setting
Green wire 0v
Orange wire 5v
White wire no 0V
Blue wire 5v

Resistance setting
Green wire with resistance
Orange wire no resistance
White wire with resistance
Blue wire no resistance

Continuity setting
Green wire has continuity
Orange wire nothing
White wire has continuity
Blue wire nothing
 

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First check the WHITE wire for GROUND with a DVOM, with the key out of the ign. and then with the key on.

With a wire stripped at both ends, one end at one of the seat bolts and the other to the GREEN wire.
Checked wiring harness for ground
1. (key out)
Using test light (clamp connected to +ve battery terminal)
White wire lights up, other wires nothing

With DVOM
Voltage setting
Green wire 0v
Orange wire 5v
White wire no 0V
Blue wire 5v

Resistance setting
Green wire no resistance
Orange wire no resistance
White wire with resistance
Blue wire no resistance

Continuity setting
Green wire nothing
Orange wire nothing
White wire has continuity
Blue wire nothing

2. (key in)
Same result as above

3. With a strip of wire
Using test light (clamp connected to +ve battery terminal)
White wire lights up,
Green wire lights up
other wires nothing

With DVOM
Voltage setting
Green wire 0v
Orange wire 5v
White wire no 0V
Blue wire 5v

Resistance setting
Green wire with resistance
Orange wire no resistance
White wire with resistance
Blue wire no resistance

Continuity setting
Green wire has continuity
Orange wire nothing
White wire has continuity
Blue wire nothing
 

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I assumed you knew what I posted. Only the GREEN wire is in play along with the WHITE wire which supplies GROUND to the entire memory switch.

The others wires are are not important as their features work.

Go to the right front seat and compare findings with the left seat.
 

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I assumed you knew what I posted. Only the GREEN wire is in play along with the WHITE wire which supplies GROUND to the entire memory switch.

The others wires are are not important as their features work.

Go to the right front seat and compare findings with the left seat.
The short answer to my lengthy post is there is good ground on the white wire but no ground on the green wire with or without key in ignition.
I will try and compare with passenger side and post the result
 

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But you have to move the switch to the backrest position.
Hello
Sorry for the late reply, was away from my truck.
I provided ground to the green wire and activate the recline seat but no movement.
I compared with passenger side.
Same as driver side: no ground at green wire but ground at white wire and the seat is working fine.
 
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