СИСТЕМА ECD (для CCo) ТАБЛИЦА ПРИЗНАКОВ НЕИСПРАВНОСТЕЙ

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

ECD System
Symptom Suspected Area See page
Engine does not crank (does not start) Battery

Click here

Starter (for DENSO Made)

Click here

Starter (for VALEO Made)

Click here

Starter relay

Click here

Clutch pedal switch

Click here

Engine immobiliser system (w/ Entry and start system)

Click here

Engine immobiliser system (w/o Entry and start system)

Click here

Entry and start system

Click here

Difficult to start with cold engine Engine difficult to start or stalling

Click here

Starter signal circuit

Click here

Pre-heating control circuit

Click here

Fuel injector

Click here

Fuel filter

Click here

Compression

Click here

ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

EDU relay

Click here

Fuel with low cetane number used -
Fuel frozen -
Air mixed into fuel pipe -
Difficult to start with hot engine Engine difficult to start or stalling

Click here

Starter signal circuit

Click here

Fuel injector

Click here

Fuel filter

Click here

Compression

Click here

ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

EDU relay

Click here

Air mixed into fuel pipe -
Battery deteriorated -
Engine stalls soon after starting Engine difficult to start or stalling

Click here

Fuel injector

Click here

Fuel filter

Click here

ECM power source circuit

Click here

ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

Air mixed into fuel pipe -
Engine stalls (not including the condition listed above) Engine difficult to start or stalling

Click here

Abnormal initial idling (poor idling) Rough idling or excessive engine vibration

Click here

Fuel injector

Click here

Fuel filter

Click here

ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Mass air flow meter deteriorated -
Fuel with low cetane number used -
A/C signal circuit to ECM open and generator signal circuit open -
High engine idling speed Rough idling or excessive engine vibration

Click here

A/C signal circuit -
Fuel injector

Click here

Starter signal circuit

Click here

ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Speed sensor circuit open

Click here

Accelerator pedal

Click here

Low engine idling speed (poor idling) Rough idling or excessive engine vibration

Click here

A/C signal circuit -
Fuel injector

Click here

EGR system

Click here

Compression

Click here

Fuel line (air bleeding) -
ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

Mass air flow meter deteriorated -
Rough idling (poor idling) Rough idling or excessive vibration

Click here

Hunting with hot engine (poor idling) Fuel injector

Click here

ECM power source circuit

Click here

Compression

Click here

Fuel line (air bleeding) -
ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

Hunting with cold engine (poor idling) Fuel injector

Click here

ECM power source circuit

Click here

Compression

Click here

Fuel line (air bleeding) -
ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

Fuel with low cetane number used -
Hesitation/poor acceleration (poor driveability) Lack of power or hesitation

Click here

Fuel injector

Click here

Fuel filter

Click here

EGR system

Click here

Compression

Click here

ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

Accelerator pedal

Click here

Turbocharger system

Click here

Mass air flow meter deteriorated -
Intake system blockage -
Exhaust system blockage -
Brake override system

Click here

Knocking (poor driveability) Engine knocking or rattling

Click here

Black smoke emitted (poor driveability) Black smoke emitted

Click here

EGR system

Click here

Fuel injector

Click here

Exhaust system blockage -
White smoke emitted (poor driveability) EGR system

Click here

Fuel injector

Click here

Fuel filter

Click here

ECM

Click here

Suction control valve

Click here

Fuel pressure sensor

Click here

Diesel throttle body

Click here

Pre-heating control circuit

Click here

Low quality fuel -
Surging/hunting (poor driveability) Fuel injector

Click here

ECM

Click here

Mass air flow meter deteriorated -
Suction control valve

Click here

Fuel pressure sensor

Click here

Turbocharger system

Click here