Mitsubishi FGC25N:
Code T 04 and f 04

Hi there I have code t 04 and f 04 flashing, the truck will not start can anyone tell me what these codes mean thank you
Make: Mitsubishi
Model: FGC25N
Ser: AF83F00287
  • Posted 24 May 2014 00:27
  • Discussion started by bert_m
  • Ontario, Canada
Showing items 1 - 3 of 3 results.
thanks this gives me lots to work with
  • Posted 27 May 2014 01:26
  • Reply by bert_m
  • Ontario, Canada
Here are some troubleshooting tips i found from one of their online conference sessions for this code:

- Can Line test Connect between 86 and 94 reading should be 61 ohms (Higher means you have a
open resistor)
- Check for corrosion in both data connectors under the cup holder on Tier 3 trucks
- Check black fuse holder under the main injector.
- Check for blown F9,F10,F11 fuse
- Check EGI relays and Main C relay in the blue relay box.
- Check ignition relay. Black box in left side step plate
- Wiggle wires. Look for chaffed, pinched, cut wires along right or left step plate area.
- Codes E04 and F04 Hour meter comes on with the key switch on and not running. Still cannot
access the ECM
through the VCM and diagnostic program. Dealers in some cases replaced the chassis harness.
- Diagnostics will not communicate either. MP panel is also having communication problems as
well.
- We have sometimes just cleaned the pin connectors at the ECM or VCM.
- Washing the truck will also cause this code if water gets into the VCM connector.
- Failed VCM
- Injection driver failed blowing QGS fuse.
  • Posted 24 May 2014 23:00
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
F 04 CAN no comunication for 2seconds from the ECM
T 04 is not in my code list.
F 04 Bad comunication from de ECM.
I hope this help.
  • Posted 24 May 2014 08:46
  • Reply by pastrana_j
  • Puebla, Mexico

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