Discussion:
Fault Code A

Hi guys,

Don't know if anyone can help, we are looking at a CAT M35D which operates fine under most circumstances, however if accelerated hard from a standing start will cut out drive and display fault code A. Hydraulic's and other systems work fine.

Does anyone know what fault code A relates to or can point us down the right route.
  • Posted 3 Apr 2012 00:14
  • By Dez_A
  • joined 3 Jun'04 - 84 messages
  • Middlesex, United Kingdom
Service life of a forklift is proportional to how well it is maintained.
Showing items 1 - 3 of 3 results.
Jplayer spot on, one of the terminal was burnt out on the capacitor, have replaced capacitor and all working well. Thanks, top advise is always appreciated.
  • Posted 13 Apr 2012 22:43
  • By Dez_A
  • joined 3 Jun'04 - 84 messages
  • Middlesex, United Kingdom
Service life of a forklift is proportional to how well it is maintained.
Top man Jplayer, will investigate and report back.
  • Posted 3 Apr 2012 20:57
  • By Dez_A
  • joined 3 Jun'04 - 84 messages
  • Middlesex, United Kingdom
Service life of a forklift is proportional to how well it is maintained.
if an "A" is displayed on the dash this indicates a "Head Capacitor" Failure.
The Head Capacitor ensures that a steady voltage is maintained to the positive headsink and that large voltage spikes are filtered out. The logics monitors this at P2-2.
Performance of the truck will be reduced when this error is active.

Check the head capacitor for any abnormalities. swelling or bad connections or improper readings during testing.
Also make sure the battery is in good condition , a low battery can cause high amp draw and might cause strange problems.

There may be other things that might cause this issue but i'd start with these things first.
  • Posted 3 Apr 2012 20:26
  • By Jplayer
  • joined 12 Apr'07 - 407 messages
  • North Carolina, United States
John Player Jr
_________________
LiftOne, LLC
Charlotte, NC
Email: jplayer@liftone.net

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.

PREMIUM business

F. Uchiyama
Global exporter of used forklift and construction machinery, servicing over 80 countries.
Global Industry News
edition #1257 - 20 November 2025
In this week’s Forkliftaction News , Toyota Industries Corporation confirms it has settled a class-action lawsuit in the US which centred around its 2023 emissions cheating scandal. Find out how much the class-action cost it... Continue reading
Movers & Shakers
Steven Ballerini Steven Ballerini
Chief executive officer, Australian Supply Chain & Logistics Association (ASCLA)
Engineering policy lead, Logistics UK
Regional manager - Eastern Canada, Associated Equipment Distributors
Vice president - IT & EP OEM parts, Big Joe Forklifts
Fact of the week
In 1898, author Morgan Robertson wrote a novel called 'Futility', which described an "unsinkable" ship named the Titan that sank after hitting an iceberg. Fourteen years later, the Titanic sank in a strikingly similar fashion.
Airman ENCL045
Yokohama, Japan
Used - Sale
Elwell-Parker ESI500-36
Morgantown, Pennsylvania, United States
Used - Sale & Hire
Upcoming industry events …
December 9-11, 2025 - Aktau, Kazakhstan
May 20-21, 2026 - Nashville, United States
June 23–25, 2026 - Cairo, Egypt
Global Industry News
edition #1257 - 20 November 2025
In this week’s Forkliftaction News , Toyota Industries Corporation confirms it has settled a class-action lawsuit in the US which centred around its 2023 emissions cheating scandal. Find out how much the class-action cost it... Continue reading