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BA Fairmont ECU 5.4L 

 

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 Post subject: BA Fairmont ECU 5.4L
Posted: Fri Jul 02, 2021 1:34 pm 
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So my Monty s**t itself the other day, turns out to be the ECU and they seem to be non-existent to replace.

To repair, re-program and install I am looking at $1500 which is a bit compared to the value of the car.

I was under the impression that you could just grab an ECU from another V8 Monty and chuck it in but the bloke from the Eleco reckons thats not the case.

Anyone know much about how these thigs work and could shed some more light on that? (Not that I have had any luck even finding one anyway)

The car is my baby so I guess I'll do it, just somewhat annoying...

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Fri Jul 02, 2021 2:43 pm 
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Sipheren wrote:
So my Monty s**t itself the other day, turns out to be the ECU and they seem to be non-existent to replace.

To repair, re-program and install I am looking at $1500 which is a bit compared to the value of the car.

I was under the impression that you could just grab an ECU from another V8 Monty and chuck it in but the bloke from the Eleco reckons thats not the case.

Anyone know much about how these thigs work and could shed some more light on that? (Not that I have had any luck even finding one anyway)

The car is my baby so I guess I'll do it, just somewhat annoying...



wow! ..... reprograming/install is easy using Forscan & a license = free. if you checkout the numbers on the side of the PCM [ECU] that should give you a 'guide' on what PCM to use. also with the 'bolts' on the PCM, they are not that hard to remove & replace with 'normal' bolts as that is what i did with my BA 6 cylinder. also this lists some - http://www.fordmods.com/ecu-fuel-system-eec-f21/ecu-catch-codes-t30186.html on the 1st page to give an idea. not sure about the V8 PCM's but the PCM's from the 6 cylinder BA's are a two connector [unless turbo & then 3] on the PCM with BF 6 cylinder then going 3 connector.


good luck with it.
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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Thu Jul 22, 2021 12:23 am 
Getting Side Ways
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Sipheren wrote:
So my Monty s**t itself the other day, turns out to be the ECU and they seem to be non-existent to replace.

To repair, re-program and install I am looking at $1500 which is a bit compared to the value of the car.

I was under the impression that you could just grab an ECU from another V8 Monty and chuck it in but the bloke from the Eleco reckons thats not the case.

Anyone know much about how these thigs work and could shed some more light on that? (Not that I have had any luck even finding one anyway)

The car is my baby so I guess I'll do it, just somewhat annoying...



Hi Sipheren, how did you go with your " BA Fairmont PCM 5.4L " ?

Cheers

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Thu Jul 22, 2021 11:52 am 
Tyre Shredder
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FPV_GTp wrote:
Sipheren wrote:
So my Monty s**t itself the other day, turns out to be the ECU and they seem to be non-existent to replace.

To repair, re-program and install I am looking at $1500 which is a bit compared to the value of the car.

I was under the impression that you could just grab an ECU from another V8 Monty and chuck it in but the bloke from the Eleco reckons thats not the case.

Anyone know much about how these thigs work and could shed some more light on that? (Not that I have had any luck even finding one anyway)

The car is my baby so I guess I'll do it, just somewhat annoying...



Hi Sipheren, how did you go with your " BA Fairmont PCM 5.4L " ?

Cheers


Still in the shop, the ECU went to Brisbane for a week for testing, no faults at all. Car still being s**t so now turning the connectors, loom, etc.

Will update once the issue has been found.

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Thu Jul 22, 2021 7:09 pm 
Getting Side Ways
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Sipheren wrote:
FPV_GTp wrote:
Sipheren wrote:
So my Monty s**t itself the other day, turns out to be the ECU and they seem to be non-existent to replace.

To repair, re-program and install I am looking at $1500 which is a bit compared to the value of the car.

I was under the impression that you could just grab an ECU from another V8 Monty and chuck it in but the bloke from the Eleco reckons thats not the case.

Anyone know much about how these thigs work and could shed some more light on that? (Not that I have had any luck even finding one anyway)

The car is my baby so I guess I'll do it, just somewhat annoying...



Hi Sipheren, how did you go with your " BA Fairmont PCM 5.4L " ?

Cheers


Still in the shop, the ECU went to Brisbane for a week for testing, no faults at all. Car still being s**t so now turning the connectors, loom, etc.

Will update once the issue has been found.


Ok so your PCM is ok .... I have a BA GT PCM Auto spare at work - what is your catch code on your PCM. cheers

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Thu Jul 22, 2021 7:49 pm 
Tyre Shredder
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Age: 37

Posts: 376

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Ride: BA Ford Fairmont 5.4L

Location: Gold Coast
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FPV_GTp wrote:
Sipheren wrote:
FPV_GTp wrote:
Sipheren wrote:
So my Monty s**t itself the other day, turns out to be the ECU and they seem to be non-existent to replace.

To repair, re-program and install I am looking at $1500 which is a bit compared to the value of the car.

I was under the impression that you could just grab an ECU from another V8 Monty and chuck it in but the bloke from the Eleco reckons thats not the case.

Anyone know much about how these thigs work and could shed some more light on that? (Not that I have had any luck even finding one anyway)

The car is my baby so I guess I'll do it, just somewhat annoying...



Hi Sipheren, how did you go with your " BA Fairmont PCM 5.4L " ?

Cheers


Still in the shop, the ECU went to Brisbane for a week for testing, no faults at all. Car still being s**t so now turning the connectors, loom, etc.

Will update once the issue has been found.


Ok so your PCM is ok .... I have a BA GT PCM Auto spare at work - what is your catch code on your PCM. cheers


Seems super rare to get the 3v 5.4L V8 Fairmont one, 3R23-12A650-MB

Couldnt find one anywhere.

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Fri Jul 23, 2021 7:40 pm 
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Quote:
Ok so your PCM is ok .... I have a BA GT PCM Auto spare at work - what is your catch code on your PCM. cheers

Seems super rare to get the 3v 5.4L V8 Fairmont one, 3R23-12A650-MB

Couldnt find one anywhere


Ok the BA GT catch code is different so no good, once you replied i realised it's the 3V 5.4Lt V8.

If you PCM is 100% good and fault lie elsewhere , did you use a scantool before removing the PCM out of the car? see what codes may have been logged?

I know it's no help as you have said your PCM is good so far the people that are check it for you, by the way there is a PCM on ebay at the moment robbos auto parts and panels has one for sale.

Will be interesting to see what the fault turns out to be!

cheers

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Fri Jul 23, 2021 7:43 pm 
Tyre Shredder
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Age: 37

Posts: 376

Joined: 21st Nov 2004

Gallery: 12 images

Ride: BA Ford Fairmont 5.4L

Location: Gold Coast
QLD, Australia

FPV_GTp wrote:
Quote:
Ok so your PCM is ok .... I have a BA GT PCM Auto spare at work - what is your catch code on your PCM. cheers


Seems super rare to get the 3v 5.4L V8 Fairmont one, 3R23-12A650-MB

Couldnt find one anywhere.


Ok the BA GT catch code is different so no good, once you replied i realised it's the 3V 5.4Lt V8.

If you PCM is 100% good and fault lie elsewhere , did you use a scantool before removing the PCM out of the car? see what codes may have been logged?

I know it's no help as you have said your PCM is good so far the people that are check it for you, by the way there is a PCM on ebay at the moment robbos auto parts and panels has one for sale.

Will be interesting to see what the fault turns out to be!

cheers[/quote]


Yeah, the Auto Elec did a scan and it spat out pretty well every code which is what led us to think the PCM was fried, but turns out it's not so guessing it is an issue somewhere else.

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Fri Jul 15, 2022 5:32 pm 
Tyre Shredder
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Ride: BA Ford Fairmont 5.4L

Location: Gold Coast
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Update: This was the ECU, massive issues back and forth with the guys doing the repair and program in Brisbane. They found some bad solder joints which were fine on the bench but back in the car would screw up with movement.

Once that was fixed it has been good until today, died again and now when you go to start it, all electronics are on but no kick. Tried bypassing the starter relay and got it to kick but no fuel.

I think the ECU has some major issues, if anyone has a spare let me know, I think I need to just go with a freshy.

Cheers

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Sat Jul 16, 2022 9:50 am 
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Sipheren wrote:
Update: This was the ECU, massive issues back and forth with the guys doing the repair and program in Brisbane. They found some bad solder joints which were fine on the bench but back in the car would screw up with movement.

Once that was fixed it has been good until today, died again and now when you go to start it, all electronics are on but no kick. Tried bypassing the starter relay and got it to kick but no fuel.

I think the ECU has some major issues, if anyone has a spare let me know, I think I need to just go with a freshy.

Cheers



bugga!.

can the PCM software be uploaded to another PCM?. seems the BA PCM's were 'slightly' prone to failure from new ... no idea why tho. the PCM on mine comes up as a 2006 with the car a 2003 as is the rest of the electronics where as another BA has everything as 2003/2004? [that car is 2004]. i'm referring to the Barra 6 not the V8.
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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Wed Jul 20, 2022 8:35 pm 
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Age: 37

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Ride: BA Ford Fairmont 5.4L

Location: Gold Coast
QLD, Australia

So I managed to get FORscan and it gave me a bit of info, maybe thinking my cluster is s**t or the BCM. I do notice weird ticking sounds from behind the dash now and then, never sure what they were.

Code:
===PCM DTC P0230-63===
Code: P0230 - Fuel pump primary circuit malfunction

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

Fuel pump primary circuit malfunction.

This DTC may be caused by :

Open or grounded fuel pump primary circuit.

Relay

Improper connection

fuel pump relay short circuit to positive

Fuel pump open circuit

No live feed to the fuel pump relay

Open or grounded fuel pump primary circuit.

Faulty or damaged PCM.

===END PCM DTC P0230-63===

===PCM DTC P0753-63===
Code: P0753 - Shift Solenoid A Electrical

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

SSA or SSPCA Shift Solenoid Electrical Circuit Failure

This DTC may be caused by :

Open circuit.

Short circuit

Possible causes are:

SSA

Shift Solenoid Pressure Control A

Harness wiring

Control Module

Inspect connectors for signs of damage, water ingress, corrosion, etc.

===END PCM DTC P0753-63===

===PCM DTC P0758-63===
Code: P0758 - SSB Control Circuit Electrical Failure

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

SSB or SSPCB Shift Solenoid Electrical Circuit Failure

This DTC may be caused by :

Open circuit.

Short circuit

Possible causes are:

SSB

Shift Solenoid Pressure Control B

Harness wiring

Transmission Control Module

Inspect connectors for signs of damage, water ingress, corrosion, etc.

Improper connection

===END PCM DTC P0758-63===

===PCM DTC P0763-63===
Code: P0763 - Shift Solenoid C Electrical

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

SSC or SSPCC Shift Solenoid Electrical Circuit Failure

This DTC may be caused by :

Open circuit.

Short circuit

Possible causes are:

SSC

Shift Solenoid Pressure Control C

Harness wiring

Control Module

Inspect connectors for signs of damage, water ingress, corrosion, etc.

Improper connection

===END PCM DTC P0763-63===

===PCM DTC P0768-63===
Code: P0768 - Shift Solenoid D Electrical

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

SSD or SSPCD Shift Solenoid Electrical Circuit Failure

This DTC may be caused by :

Short circuit

Possible causes are:

SSD

Shift Solenoid Pressure Control D

Harness wiring

Control Module

Inspect connectors for signs of damage, water ingress, corrosion, etc.

===END PCM DTC P0768-63===

===PCM DTC P1465-63===
Code: P1465 - A/C relay system fault

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

A/C relay system fault

Open power feed to relay.

This DTC may be caused by :

Suspect relay.

ACR signal shorted to VPWR or ground.

===END PCM DTC P1465-63===

===PCM DTC P1474-63===
Code: P1474 - FCLOW primary circuit malfunction

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

FCLOW primary circuit malfunction

This code is set when a difference between the actual Low Fan Control output circuit state and the requested state is detected.

This DTC may be caused by :

Relay

Open FCLOW circuit.

FCLOW circuit shorted low.

===END PCM DTC P1474-63===

===PCM DTC P1748-63===
Code: P1748 - EPC circuit fault

Additional Fault Symptom:
- Signal is Above Maximum Threshold

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

EPC circuit fault

This DTC may be caused by :

Open circuit.

Short circuit

Possible causes are:

EPC

Harness wiring

Transmission Control Module

Inspect connectors for signs of damage, water ingress, corrosion, etc.

===END PCM DTC P1748-63===

===OBDII DTC None===
Successful DTC reading, no error codes found

Module: On Board Diagnostic II

===END OBDII DTC None===

===BEM DTC U1900-60===
Code: U1900 - CAN Communication Bus Fault - Receive Error

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Body Electronic Module

Diagnostic Trouble Code details

CAN Communication Bus Fault - Receive Error

Note:

DTCs that start with 'U' are faults which occur during module-to-module communication.

Modules should never be replaced based only on a 'U' code. These codes do not always indicate a problem, and can be caused by normal diagnostic functions, carried out on the vehicle.

===END BEM DTC U1900-60===

 

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 Post subject: Re: BA Fairmont ECU 5.4L
Posted: Thu Jul 21, 2022 7:59 am 
Fordmods Junkie
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Hi.

i think you need to ask questions on Ford Forums, not sure in which section but have put up a general link for the workshop - https://www.fordforums.com.au/forumdisplay.php?f=8 or the main page - https://www.fordforums.com.au/index.php?

there are more people there with more knowledge etc than what are here.


Cheers
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