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Stalled. No crank, no start.

 
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Old 24 Sep 2017, 10:33 am
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Unhappy Stalled. No crank, no start.

2001 PTC Limited 5-speed manual. I was driving when it stalled. It started again with some hesitation. Then died again and dead since. No crank, no start.
Here is what's happening: after I turn the ignition key, all the dashboard lights come on, SKIM light turns off but comes on again, no flashing. Fuel pump not working, no crank. Battery (1 year old) fully charged, both battery cables are new.
There is no communication with an OBDII scanner when connected. No linking with ECU it says. Do I have a dead PCM once again? That would be the fourth one. Any suggestions? Please help.
Update: I measured voltage on DLC pin2 and 5 (PCI bus). Should be 5-7 Volts it is 0.3V. I have a shorted PCI bus. Previous owner installed an aftermarket radio. I am wondering if this could be the culprit.
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Last edited by Overdrive; 24 Sep 2017 at 10:59 am.
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Old 24 Sep 2017, 11:12 am
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Default Re: Stalled. No crank, no start.

Is the engine light on?
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Old 24 Sep 2017, 11:40 am
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Default Re: Stalled. No crank, no start.

Engine light is off, also the radio is not the problem. But the Airbag light is on.
First it comes on with lamp check, after a while it goes off (last) then comes on and stays on.

Edit: engine light did come on, after a while.
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Last edited by Overdrive; 24 Sep 2017 at 06:42 pm.
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Old 24 Sep 2017, 12:18 pm
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Default Re: Stalled. No crank, no start.

Why do people never say "I checked all of the fuses", when reporting problems involving electrical systems?

Check under-hood fuses #1 and #13
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Old 24 Sep 2017, 06:41 pm
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Default Re: Stalled. No crank, no start.

I am having a hard time troubleshooting the PCM wiring. There seems to be some discrepancy in the shop manual. Page 8W-30-15 shows a C3 connector. Where is C3 connector? 2001-2002 PT's have only two PCM connectors.
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Old 24 Sep 2017, 07:10 pm
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Default Re: Stalled. No crank, no start.

Quote:
Originally Posted by Overdrive View Post
Engine light is off, also the radio is not the problem. But the Airbag light is on.
First it comes on with lamp check, after a while it goes off (last) then comes on and stays on.

Edit: engine light did come on, after a while.
Did you try checking for engine trouble codes after the engine light came on? If still no communication from the PCM did you try the key dance method?
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Old 24 Sep 2017, 07:21 pm
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Default Re: Stalled. No crank, no start.

The link below is for a 2001 Pt Cruiser PCM wiring diagram.

http://i47.tinypic.com/208fbic.jpg
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Old 25 Sep 2017, 09:46 am
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Default Re: Stalled. No crank, no start.

Thanks Steve. I used that drawing and compared it with the shop manual thus these discrepancies. I could retrieve old stored codes P0300; P0301. No new codes due to lack of communication. I will do the key dance once I put all back together.
I did disconnect the SKIM module , Instrument cluster and AIRBAG module. Still no PCI bus.
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Last edited by Overdrive; 25 Sep 2017 at 09:52 am.
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Old 25 Sep 2017, 02:08 pm
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Default Re: Stalled. No crank, no start.

Under-hood fuse #13 (20 amps) controls the computer data bus system
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Old 25 Sep 2017, 03:55 pm
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Default Re: Stalled. No crank, no start.

I believe you are going in the right direction. It's a shame that the DRBIII has to be so expensive to make it easier to find the problem.

PCI Bus Communication Failure can include a short to ground.

Chrysler Workshop Manuals > PT Cruiser L4-2.4L VIN B (2001) > Powertrain Management > Computers and Control Systems > Information Bus > Component Information > Diagrams > Page 2086
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Last edited by ptcruisersteve; 25 Sep 2017 at 04:00 pm.
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