Power Control Module (PCM)

10-30-2005, 09:32 PM

Other wise known as JTEC??? Dont ask me why. The PCM is under the hood on 98.5 and up electronic controled Cummins motors. It is mounted to the firewall near the passenger hood hinge, As input signals to the PCM change the PCM adjustes its response to the output devices, The PCM controls

charging system
speed control
transmission
air conditioning
APPS
CPS
Auto shut down (ASD)
Battery temp
Battery voltage
Brake switch
CCD+
CCD-
CPS
Data link port for scan tool
fuel level
Alternator output
Ignition
Output shaft speed
Overdrive if auto
Cruze control
Tranny temp auto
Tranny pressure auto
ABS braking

SO next time you have the high pressure washer fired up stay away from the PCM or it will bite you

Cheers, Kevin

Last edited by Andy : 03-24-2007 at 02:49 PM.

8V92TA · 07-22-2006, 08:48 PM

JTEC stands for Jeep Truck Engine Controller. :thumbsup

mgstroker95 · 08-03-2006, 07:06 PM

Hey Whitmore where is the best place to get a replacement PCM? I have already purchased one from a dealership located near me only to find that the part was faulty. Come to find out the dealership and general manager are refusing to warranty the faulty part. So I have filed complaints through the BBB and Chrsyler so we will see what happens there. Anywho I am out $550 for the PCM and my truck is still down so I was just curious if you knew anyone who you would vouch for that might have a new/used PCM. Thanks

Josh :fist:

10-30-2005, 09:32 PM	#1 (permalink)
Guest Posts: n/a	Power Control Module (PCM) Other wise known as JTEC??? Dont ask me why. The PCM is under the hood on 98.5 and up electronic controled Cummins motors. It is mounted to the firewall near the passenger hood hinge, As input signals to the PCM change the PCM adjustes its response to the output devices, The PCM controls charging system speed control transmission air conditioning APPS CPS Auto shut down (ASD) Battery temp Battery voltage Brake switch CCD+ CCD- CPS Data link port for scan tool fuel level Alternator output Ignition Output shaft speed Overdrive if auto Cruze control Tranny temp auto Tranny pressure auto ABS braking SO next time you have the high pressure washer fired up stay away from the PCM or it will bite you Cheers, Kevin Last edited by Andy : 03-24-2007 at 02:49 PM.

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07-22-2006, 08:48 PM	#2 (permalink)
8V92TA Newbie Join Date: Jul 2006 Posts: 19 Thanks: 0 Thanked 1 Time in 1 Post 8V92TA's Truck Pics	JTEC stands for Jeep Truck Engine Controller. :thumbsup

08-03-2006, 07:06 PM	#3 (permalink)
mgstroker95 Cummins Enthusiast Join Date: Aug 2006 Location: Houston, Texas Posts: 286 Thanks: 0 Thanked 0 Times in 0 Posts mgstroker95's Truck Pics	Hey Whitmore where is the best place to get a replacement PCM? I have already purchased one from a dealership located near me only to find that the part was faulty. Come to find out the dealership and general manager are refusing to warranty the faulty part. So I have filed complaints through the BBB and Chrsyler so we will see what happens there. Anywho I am out $550 for the PCM and my truck is still down so I was just curious if you knew anyone who you would vouch for that might have a new/used PCM. Thanks Josh :fist: