Page 2561 - Foton Workshop Manual - Sauvana

DIAGNOSIS-ENGINE CONTROL SYSTEM 62-509
HOW TO PERFORM FAILURE ANALYSIS

△ PROMPT:
Diagnose the vehicle using a special diagnostic apparatus .
1. Vehicles are sent into the repair factory
YES>To step 2.
2. Collect and analyze the fault phenomenon mentioned by clients 62
YES>To step 3.
3. Connect the fault diagnostic apparatus to the DLC
YES>To step 4.
4. Check DTC and freeze data
YES>To step 5.
5. Delete DTC and freeze data
YES>To step 6.
6. Conduct visual check
YES>To step 7.
7. Confirm fault phenomenon
Check the results ( if the engine does not start, firstly it should conduct the following
"whether there is DTC in check" and perform basic checks )

Result Go to

Fault does not occur To step 8

Fault occurs To step 12
8. Fault phenomenon simulation

Result Go to

Fault does not occur To step 9
Fault occurs To step 12
9. Check whether there is DTC
Check results

Result Go to

Fault code appears To step 10
No fault code appears To step 11
10. Refer DTC table
YES>To step 13.
11. Conduct basic checks
Check results

Result Go to

Cannot confirm the fault component To step 12
Can confirm the fault component To step 16

Page 2561