Page 65 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 11

How to perform fault analysis IN
Caution

Diagnose the vehicle with a fault diagnostic unit. DI
1. Deliver the vehicle to the repair factory.

Yes>go to Step 2. EG
2. Collect and analyze the fault symptoms described by the client.
TR
Yes>go to Step 3.
3. Connect the fault diagnostic unit to DLC.

AX
Yes>go to Step 4.
4. Check DTC and freeze frame data.
FR
Yes>go to Step 5.
5. Remove DTC and freeze frame data.
ST
Yes>go to Step 6.
6. Perform visual check.

BR
Yes>go to Step 7.
7. Confirm failures
BW
Test results (if the engine fails to start, first perform “check if DTC exists” and basic check)

Result Go to
EL
No failure Go to Step 8

Failure appears Go to Step 12

8. Simulation of fault symptoms

Result Go to

No failure Go to Step 9

Failure appears Go to Step 12

9. Check if DTC exists.

Check the result
Result Go to

The fault code appears. Go to Step 10

No fault code Go to Step 11

10. Refer to the list of DTC.

Yes>go to Step 13.

DI-011