Foot Pedal - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

Foot pedal

Related DTC
P1125/1
P1126/0
DTC
P1225/1
P1226/0
Work flow
*For details of the work, see after-mentioned "<Work Description>."For the operation of the
diagnosis tool, see "Diagnosis tool Operation Manual" separately.
Initial diagnosis with the diagnosis tool
A. Check the current
failure display
Current failure
exists.
B. Check the detected
value to estimate the
cause of failure.
Failure diagnosis flow
1. Continuity check
(foot pedal only)
OK
2. Continuity check
(foot pedal + harness)
OK
4. Movement check
(use diagnosis tool)
1-144
Method and Procedure of Failure Diagnosis
Accelerator Sensor Error (foot pedal-close position)
Accelerator Sensor Error (foot pedal-open position)
Spare Accelerator Sensor Error (foot pedal-close position)
Spare Accelerator Sensor Error (foot pedal-open position)
DTC in the failure history indication
[Check items]:
"Foot pedal SW-NO" "Foot pedal SW-NC"
• Pedal full-closed : SW-NO=OFF, SW-NC=ON=
• Pedal full-opened : SW-NO=ON, SW-NC=OFF=
• Other than above=
NG
NG
3. Continuity check
(harness)
NG
OK
Check the failure
conditions.
>
Error
Foot pedal replacement
NG
Harness
replacement
OK
Replacement of E-ECU
foot pedal
Replacement of E-ECU
TNV DI Service Manual
>
Normal
>
Normal
or
019477-00E