Discussion:
2003-12 code

So have no forward and reverse. went through the full trouble tree everything in the canbus tests good. pulled the TCM out and nothing on the LCD screen have power at 2 wires going in and 2 grounds. tested the tranzorb and that also tests good. what am i missing here


***update**
So back probed the three power wires 2 are always on an one is key on. with the controller hooked up all of them drop to like 4-5 volts swapped out PDM with known good one and no change. am i starting to look at a VSM here ?? thanks

Thanks
  • Posted 18 Aug 2022 03:31
  • Modified 19 Aug 2022 03:33 by poster
  • By Nwrecchian
  • joined 18 Aug'22 - 19 messages
  • Maine, United States
Showing items 1 - 1 of 1 results.
DTC 2003-12 is "CANbus Error With TCU" so if you've verified that the TCU is good, I'd check and make sure your wires aren't damaged and the connectors are good (sometimes the wires break out of the connectors) and check for corrosion.
  • Posted 27 Aug 2022 08:09
  • By Adam_Thrasher
  • joined 27 Aug'22 - 10 messages
  • Oregon, United States
A. Thrasher

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Fact of the week
Brussels Airport in Belgium, Europe is the world's largest sales point for chocolate, with over 800 tonnes of chocolate sold annually. This averages out to about 1.5 kilograms sold every minute.

PREMIUM business

Combilift Ltd
Manufactures world class 4-way Handling Solutions
Global Industry News
edition #1252 - 16 October 2025
In this week’s Forkliftaction News , we report on the GEP Global Supply Chain Volatility Index which shows Asian supply chains are at their busiest since June 2022 while the US and Europe’s supply chains remain under-utilised. One of the report authors describes the situation as being “as stable as it’s going to get”... Continue reading
Movers & Shakers
Jim Tompkins Jim Tompkins
Chairman of the board, Tompkins Solutions
Director of government affairs, Associated Equipment Distributors
National dealer development manager, Castle Equipment Company
Sales operations, Heli