Page 619 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-473

ENGINE OIL TEMPERATURE IS HIGHER THAN THE TECHNICAL

SPECIFICATION VALUE

Fault phenomenon Diagnosis logic Possible reasons

• Engine oil leakage
• Engine oil
• Oil condenser fault 04
Engine oil temperature is • Oil condenser • Engine temperature is too
higher than the technical • Engine temperature high
specification value • Lubrication system
• Lubrication system 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 engine oil
(a) Check quality of engine oil is accord with standard.

Is the inspection result normal?
YES>To step 3.
NO>Replace engine oil.

3 . Check oil maintenance period
(a) Check whether engine oil maintenance period is accord with the standard.
(b) Check whether there is engine oil leakage.
Is the inspection result normal?

YES>To step 4.
NO>Replace engine oil.

4 . Check oil condenser
(a) Check whether oil condenser has phenomenon of damage, leakage, block and so on.
Is the inspection result normal?

YES>To step 5.
NO >Replace oil condenser.

5 . Check lubrication system

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