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NEW member/owner HELP

 
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  • 2 Post By sanatanadharma
  • 1 Post By VsandFords
  • 1 Post By rckstein
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Old 25 Apr 2017, 11:15 pm
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Default NEW member/owner HELP

I just purchaced an '05 PT Cruiser touring. 88,00 miles for my daughter. Everything works except the rear liftgate. It has the touchpad. It will open with the key but does nothing with the pad. I have tested the pad with a multimeter and it is OK. I replaced the solenoid and the remote receiver module that is on the top of the dash. nope. There are two plugs on the solenoid and none of the wirse color match the Haynes schematic. The little plug has 10v across it (bat has 12.6v). The big plug has no voltage across it. I have checked EVERY fuse in the car and they are all good. Is there a relay that controls it? Is there a control module for it? I am pretty sure it is a power problem but I have no idea where the loss is. HELP
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Old 26 Apr 2017, 12:37 am
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Default Re: NEW member/owner HELP

Take a look at this thread:

Liftgate touchpad replacement
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Old 26 Apr 2017, 01:32 am
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Default Re: NEW member/owner HELP

I checked out my pad and it is good. also since all it does is crate a short I shorted the connector and it still did nothing. I feel a new switch wouldn't help.... thoughts?
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Old 26 Apr 2017, 11:48 am
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Default Re: NEW member/owner HELP

I believe that the lift-gate key cylinder is mechanically connected to the latch-release.

First check the lift-gate latch/ release motor operation.
It has a two wire connector. The black wire is ground and the light-green/black wire is power from the RKEM.
In normal operation, the lift-gate touch pad grounds a circuit that signals the RKEM to send power to the latch release*.

Try applying 12 volts to the light-green/black wire pin at the latch release.
The motor should activate (other pin must be grounded).
If not, the problem is there.

If the motor is fine, you need to check the wiring from the RKEM all the way back to the lift-gate. Check continuity at and between each connector.

At the RKEM, try grounding grounding pin #13 (brown/light-blue).
If the latch releases, then the problem is in the ground wire circuit.

Disconnect the RKEM connector and try applying 12 volts to the light-green/black wire at pin #16. If the latch does not release, the problem is in the power wire circuit.

The connectors along the circuit are C202 and C302.
C202 is a 26-pin white connector behind the left kick panel (forward of driver's door).
C302 is a 12-pin white connector behind the rear left speaker cover.
The wire harness from body to lift-gate is a weak point because of the motion of opening and closing the door. Perhaps a wire broke.

*This touch pad circuit has a brown/light-blue wire to the RKEM and a black wire to ground. The brown/light-blue wire runs through the same C202 and C302 connectors to pin #13 at the RKEM.
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Old 26 Apr 2017, 11:57 am
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Default Re: NEW member/owner HELP

I never try to follow sanatanadharma with his electrical knowledge.

Welcome to the forum from Texas.
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Old 26 Apr 2017, 12:42 pm
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Default Re: NEW member/owner HELP

Quote:
Originally Posted by VsandFords View Post
I never try to follow sanatanadharma with his electrical knowledge.



Welcome to the forum from Texas.
HE IS THE WIZARD!

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Old 26 Apr 2017, 12:50 pm
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Default Re: NEW member/owner HELP

That is completely awesome electrical advice believe it or not I actually can follow exactly what you're asking me to do and when I'm off tomorrow it's time to get out my test leads on my little 12 volt power supply and start running some test thank you so much I can already tell this form is going to be an awesome resource
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Old 26 Apr 2017, 02:32 pm
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Default Re: NEW member/owner HELP

Welcome to the forum

Please go to the Welcome New PT Cruiser Members section and introduce yourself and tell us about your PT
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Old 26 Apr 2017, 03:15 pm
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Default Re: NEW member/owner HELP

I'e had several ground wire problems with a few PT Cruisers, You can always add a body ground near the problem device.
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