Page 963 - Workshop Manual - Tunland (2017)
P. 963
DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-277
04
Fault phenomenon Possible reasons Refer to
4. Fuel system
1. ECM
2. Intake system
Chapter 04 Diagnosis-the
The engine turns off when it 3. Electronic throttle valve
motor control system, the
cold idles
4. Coolant temperature motor will turn off when idling
sensor
5. Exhaust system
1. ECM
2. Intake system Chapter 04 Diagnosis-the
The motor will turn off when
3. Electronic throttle valve motor control system, the
starts
4. Fuel system motor will turn off when starts
5. Injector
1. Intake system
2. Fuel system
3. Electronic throttle valve
Chapter 04 Diagnosis-the
Slow, dull and imbalanced of 4. Electronic accelerator motor control system, slow,
the accelerating reaction pedal stagnancy and imbalanced of
the accelerating reaction
5. Turbocharger
6. Exhaust system
7. ECM
1. Intake system
2. Fuel system
3. Electronic throttle valve
4. Electronic accelerator Chapter 04 Diagnosis- the
Bad acceleration, poor pedal motor control system, bad
performance acceleration, poor
5. Turbocharger performance
6. Injector
7. Exhaust system
8. ECM
1. Vehicle Speed Sensor
2. Clutch switch Chapter 04 Diagnosis- the
PTO or cruise control can't motor control system, PTO or
work 3. Brake switch
cruise control can't work
4. Cruise control /PTO
selector switch
