Help

Aug 14, 2017
73
2
8
50
#1
Does any know what these codes mean. U1262. J1850 Bus. Also the ECM gets hot like you can't hold your hand on it. Is that normal. It's a 99 mustang GT.
 
  • Sponsors (?)

wmburns

SN Certified Technician
Aug 14, 2009
4,470
263
154
Houston Texas
#3
If this were my car I would first rule out all devices connected to the PCM. For example:
  • shorted ignition coil
  • shorted injector
  • shorted sensor
With a problem in the ignition circuit being top of the list.

>>From the Ford service manual
U1262 SCP Communication Bus Fault - Perform Network Communications Test Go to Workshop Manual Section 418-00, Module Communications Network
<<

The Ford workshop manual has a whole series of pinpoint tests to verify the Module Communication Network. If interested in getting a full set of Ford service manuals and wiring diagrams for your car I maybe able to help. PM if interested.

Hint. Often problems in the MCP are wiring and ground related. Think back about any recent work done. How about any evidence of water or rodent damage?
 

rlauzon

Active User
Sep 20, 2017
12
4
13
33
#7
If this were my car I would first rule out all devices connected to the PCM. For example:
  • shorted ignition coil
  • shorted injector
  • shorted sensor
With a problem in the ignition circuit being top of the list.

>>From the Ford service manual
U1262 SCP Communication Bus Fault - Perform Network Communications Test Go to Workshop Manual Section 418-00, Module Communications Network
<<

The Ford workshop manual has a whole series of pinpoint tests to verify the Module Communication Network. If interested in getting a full set of Ford service manuals and wiring diagrams for your car I maybe able to help. PM if interested.

Hint. Often problems in the MCP are wiring and ground related. Think back about any recent work done. How about any evidence of water or rodent damage?



Hey man sorry new here not sure how to PM i would love to get my hands on the service manual for my 2000 GT as i sure bought a basket case the more i dig into this thing
 

imp

Mustang Master
Jul 13, 2017
531
104
83
67
#8
Hey man sorry new here not sure how to PM i would love to get my hands on the service manual for my 2000 GT as i sure bought a basket case the more i dig into this thing
To me, a basket case would be a engine with rod thrown through the side of the block. Any thing less, not a basket case. imp
 

rlauzon

Active User
Sep 20, 2017
12
4
13
33
#9
car was hit hard outside looked good all body lines were good got looking into it she got hit and HARD the rear end was almost torn out as i found out when i went to go do the springs.
 

Neuron

Mustang Master
Nov 6, 2016
589
122
83
68
#10
In the field of automobile restoration, the term “basket case” means different things to different people. In general, it refers to a car that, no matter how amazing it once was, may be past the point of saving
In my day it usually meant a car that has been taken apart by someone unable or unwilling to reassemble it,also assemblies like the carburetor(had a lot of Qudrajet's brought into the shop in pieces)that OP try to rebuild and have to give up.
May mean different things to different people but they are all not good!
 

Similar threads