Discussion:
Throttle position sensor 51-7 ?

Hey everyone,

I'm having trouble with my forklift.

Sometimes when I start it up, the throttle pedal doesn't react at all,
and the check engine light comes on, along with error 51-7.

When I turn the forklift off, and start it up again, the throttle pedal works normal.

When I check the diagnostics, I come up with these values:

Acceleraror pedal A 0.79 volts
Acceleraror pedal A 2.78 volts

Acceleraror pedal B 0.39 volts
Acceleraror pedal B 1.39 volts

Do you think the sensor is the problem,
is there a fix, or it needs replacing?
  • Posted 3 Jan 2018 01:51
  • Modified 3 Jan 2018 17:51 by poster
  • By Andrew_RS
  • joined 3 Jan'18 - 1 message
  • State, Serbia
Showing items 1 - 1 of 1 results.
There are no generic replacements. You will need to replace it.
  • Posted 3 Jan 2018 05:44
  • By BREWSKI
  • joined 10 Jan'12 - 1,699 messages
  • Nebraska, United States

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.

Global Industry News
edition #1259 - 4 December 2025
In this week’s Forkliftaction News , we look at the November Logistics Manager’s Index which has dropped to the lowest it has been since June 2024... Continue reading
Upcoming industry events …
February 24, 2026 - Panama City, Panama
April 8-10, 2026 - Jiangsu Province, China
June 10-11, 2026 - Cologne, Germany

PREMIUM business

RAEDER-VOGEL
Innovative high-quality wheels and castors for the forklift industry.
Latest job alerts …