PCM location

Hello,

The PCM is located under the power brake booster half in and half out of the firewall Here is the location diagrams below. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. Cheers,

where is the pcm located?

behind left kick panel which is panel in front of door inside

thankyou so much! I found it, but now I need to know how to remove it please.

there is an electrical connection to unplug as well as few bolts probably. why do you want to removei tin the first place. you'll have to scan for codes first to see if it is bad or a sensor. we don't show a pic of this so it's hard to describe not seeing something that old.

already had diagnostics run on it. they said it was the pcm. thanks so much for your help

Good to hear, please use 2CarPros anytime we are here to help.

Best, Ken

Where is the computer location it is not behind the passenger kick panel.

no its on the left side firewall by the brake booster and wiring harness

where is the pcm located on this vehicle?

Try and check behind left kick panel

1983 ford f-150 302-2bbl does this vehicle have an engine control module(computer)? and where is it located? ty

LH Inner Fender Well.

Above Ignition Module

Applicable to: 1981-83 w/MCU

Electrical problem
1992 Ford F150 V8 Four Wheel Drive Automatic
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Where do I find the computer @ under my dash?

It is on the driver's side firewall comming from the engine compartment.

Computer problem
1993 Ford F150 V8 Two Wheel Drive Automatic

where is the ECM

PCM see below

I am trying to find out the location of the ECM/PCM on a 1996 Ford F150, can you help?

The Powertrain Control Module is located at the LH side of the safety wall.

I own a 1989 F150 Lariet and have been experiencing problems with the electrical system. My truck runs fine one moment then completely goes haywire the next. To me it seems like i have an electrical short somewhere and have been feverishly been tracing wires looking for bad connections, pinched wires, or burned up wires. My eec relay "chatters", this relay controls my external fuel pump, and whenever the the problem occurs while driving I have to pull over as because the vehicle is completely undrivable. I replaced the relay and the problem continued. My next step I did was to run a bypass toggle to manually control the pump. But the problem continues. I have tried taking it to the shop but have been told that as long as it is not currently happening there is not much they could do. These problem happens at random intervals. My last episode lasted three months and i was unable to drive it at all so I parked my truck. When I ran the bypass the truck ran fine but alas the problem returns. The check engine light flickers and the truck dies. This problem burned up my last fuel pump from being turned on and off so much so fast along with the eec relay. I feel like the pcm is going bad or that something is sending the pcm bad signals which in turn cause the pcm to output weird signals. HELP ME PLEASE!!!! What can i do?

THe EEC also controls the ingnition system. When this happens, do you hear the pump going on and off or could it be something like a crank sensor that is bad?

Iv'e asked (5) different sources and have gotten (5) different answers to exactly where the PCM is located on this vehicle. Can someone please help?

The PCM is located behind the drivers side kick panel just ahead of the door. Remove the door panel and the PCM will be a silver box approx 1.5" x 8" x 5" just below the level of the underside of the dash. The PCM fits into a slot in the firewall. If you open the hood and look down behind the driver's side wheel well, you will see the wiring harness that is bolted into the PCM through the slot in the firewall. Hope this helps.

Where is the computer and how do you replace it?

under drivers side of dash.

why are you replacing it.

not a common failure

Roy

Engine Mechanical problem
1984 Ford F150 V8 Four Wheel Drive Automatic

please tell me exact location of eec computer & eec relay ? thank you mace59.

Hello and thanks for donating


Your vehicle's EEC power relay is under the center of the instrument panel, near the ECA module. The ECA module itself is under the center of the instrument panel as well.

1990 Ford F150 V8 Two Wheel Drive Automatic
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where is the pcm located in the truck? and what do it look like?

Left side kick panel
its a metal box
look under the hood locate brake booster and to the right of in the firewall wiring harness
in the middle of it has a bolt , that’s bolts to the control module and u have also two nuts holding the box on the firewall
good luck

I have a 1197 ford f-150 xl 4.2 l where can i find the pcm?

Try tucked up behind the glove box...

Thanks

I was told my problem was probably the computer and I took out the control module thinking it was the computer but have since replace it. Now I am trying to find out where and how to take out the computer to see if it is indeed the problem as to why my truck will not start. It appeaed originally that it might have been the fuel pump but according to the diagnostic it said it might be the 02 sensors we replaced two of the sensors but it did not cure the problem. I am being told my another expert that it is probably the computer and I have not been able to locate it. Can you help?

driver side firewall. up under the dash. its where you see that big wireloom attach to with a bolt in the center under the hood

my truck is in a start/no run situation. I Rebuilt the 4.2L and have put 2000 good miles on it when it just bucked, coughed and stalled out last week. Checked the mechanics of the motor...fine(timing, compression, all good). Fuel delivers a static 35psi to the rail and is being injected into the cylinders and there is spark. No code has been thrown out by the PCM. All sensors I have checked(TPS, IAC, IWT) are good. I am having issues finding out what voltage I should be seeing going into and out of the Cam Angle sensor and the Crank position sensor. the Cam angle is new from the rebuild. I am at my last resource here before i say its the PCM that quit. So some voltage knowledge and where to go from there would help me greatly. thanks

Hi fantum48,

Thank you for the donation.

You mentioned start/no run condition, does that mean it can be started ?

The voltage of the CMP is less than 5 volt and with engine running, it should not vary more than 0.1 volt.

Crankshaft position sensor is Hall effect so it is 12 volts.

it cranks over only, sputters and coughs occasionally, but does not run. I have replaced the CMP and CKP. I am at a loss with it, can't figure it out and am very hesitant to get a new PCM. No codes to retrieve. Help!

Since it is sparking with compression and fuel getting to the cylinders, it should be running.

When sparks are available, it is not likely to be a problem with the PCM, cam or crank position sensor .

Are the sparks bright blue or orange? If it is dull orange, the sparks could be weak resulting in the non starting. Were the spark plugs checked? Are they clean or sooty?

I have replaced the plugs...then old ones did have carbon build up on them, but i figure that's part of the break in period for a rebuilt engine. The Coil pack primary side was around 700ohm, and the secondary side was around 13k ohms, which i think is just outside of spec. I have not actually looked at at the spark myself, so I dont know if its blue or orange.

in addition...the cam angle sensor(CMP) is seeing .6V under battery voltage, and the Crank Position Sensor(CKP) I cannot get a voltage reading either front or backprobing. These readings were taken key on engine off because of the no start condition