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What is the dealer code p1603 for a pt cruiser

Customer Question
what is the dealer code p1603 for a pt cruiser
Submitted: 7 years ago.Category: Chrysler
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Answered in 1 minute by:
11/2/2010
Chrysler Mechanic: Tim West, ASE Certified Technician replied 7 years ago
Tim West
Tim West, ASE Certified Technician
Category: Chrysler
Satisfied Customers: 4,638
Experience: ASE certified Service Manager
Verified

Tim West :

Thanks for visiting Just Answer

Tim West :

Is this a turbo?

Customer:

NO

Tim West :

Ok there are really 2 options for this code.

Tim West :
P1603 PCM Internal Dual-Port Communication Failure











Possible CausesSetting Conditions


  • Fused ignition switch output is missing (off-start-run circuit)

  • PCM has an internal failure


Customer:

WHAT IS THE OCM

Customer:

PCM

Tim West :

Pcm is the vehicle's computer

Tim West :

Make sure to check all the fuse

Tim West :

There are multiple fuse for the pcm

Tim West :

If all the fuse are OK, you will need to replace the computer.

Customer:

SO THE COMPUTER IS BAD, THIS HAS SOMETHING TO WITH THE TRANSMISSION

Customer:

IT ACT LIKE IT HAD FUEL PROBLEM

Tim West :

Well, this usually results in more codes that a regular scan tool can't read.

Tim West :

And not being able to shift out of 1st gear.

Tim West :

For testing, it's best to just take it to the dealer or a transmission shop.

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Tim West
Tim West
Tim West, ASE Certified Technician
Category: Chrysler
Satisfied Customers: 4,638
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