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Toyota Forklifts · C4-1
Accelerator potentiometer abnormality (1)

What this code means

Accelerator potentiometer abnormality (1). Vehicle effect per manual: traveling disabled.

Applies to: 7FBEF15-20 electric forklift (AC drive).

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (C4-1), machine model and serial number — we quote genuine and OEM replacement parts for export.

Source: Toyota 7FBEF15-20 Service Manual (2003), Diagnosis Code List. Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.