Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION (DIAGNOSIS 1)

Malfunction Criteria	Threshold Value
Throttle minimum stop position	2.22 V or more

JUDGMENT VALUE SPECIFICATION (DIAGNOSIS 2)

Malfunction Criteria	Threshold Value
Accelerator pedal position learning value in backup RAM area 1	Not equal to accelerator pedal position learning value in backup RAM area 2

JUDGMENT VALUE SPECIFICATION (DIAGNOSIS 3)

Malfunction Criteria	Threshold Value
Total of backup RAM (ECM shutdown)	Not equal to total of backup RAM (ECM startup)

JUDGMENT VALUE SPECIFICATION (DIAGNOSIS 4)

Malfunction Criteria	Threshold Value
Communication status between CPU and power supply IC	Malfunction

JUDGMENT VALUE SPECIFICATION (DIAGNOSIS 5)

Malfunction Criteria	Threshold Value
Throttle control calculation data by CPU	Not equal to throttle control calculation data by power supply IC

JUDGMENT VALUE SPECIFICATION (DIAGNOSIS 6)

Malfunction Criteria	Threshold Value
Calculation data by CPU	Not equal to calculation data by Lock-step

JUDGMENT VALUE SPECIFICATION (DIAGNOSIS 7)

Malfunction Criteria	Threshold Value
Actual engine output - Target engine output	More than 20 kw (27 PS)

Time needed for diagnosis:

Diagnosis 1: Less than 1 s

Diagnosis 2: Less than 1 s

Diagnosis 3: Less than 1 s

Diagnosis 4: Less than 1 s

Diagnosis 5: Less than 1 s

Diagnosis 6: Less than 1 s

Diagnosis 7: 500 ms

Malfunction indicator light illumination: Illuminates as soon as a malfunction occurs.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Diagnostic Method