Page 577 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-431

THE ENGINE CAN NOT BE MOTOR JIGGER - (ELECTRIC

STARTER MOTOR)

Fault phenomenon Diagnosis logic Possible reasons

• Battery • Battery fault
• Starter or starter circuit • Starter or starter circuit fault 04
• Crankshaft • Crankshaft fault
The engine can not be motor • Camshaft • Camshaft fault
jigger - (electric starter motor)
• Timing mechanism • Timing mechanism fault
• Injection timing • Injection timing fault
• ECM • ECM fault

Diagnosis Procedure

1 . Check the engine data

(a) Ignition switch: OFF.
(b) Connect the diagnosis tool with the fault diagnosis connector (16 pins) on the lower
left of the dashboard.
(c) Ignition switch: ON, and start the diagnostic tool.
(d) Read the motor data shown on the diagnostic tool.

Check whether the data flow is normal or not.
YES>To step 2.

No >Maintenance related faults.

2 . Check battery
(a) Check whether the battery is in normal status.

Is the inspection result normal?
YES>To step 3.
No >Maintenance related faults.

3 . Check starter and starter circuit
(a) Check whether the starer is damaged.
(b) Check whether the starter circuit is normal.
Is the inspection result normal?

YES>To step 4.
No >Maintenance related faults.

4 . heck the motor machinery
(a) Use an endoscope to observe the in-cylinder condition.
(b) Check engine internal parts, such as crankshaft, camshaft, timing mechanism and so
on.

Is the inspection result normal?

YES>To step 5.

Page 577