Page 149 - Foton Workshop Manual - Auman EST-M
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Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 95
Yes>go to next Step 3 IN
NO> check and repair relevant failure.
3. Check the injector and circuit DI
a. Check the injector (refer to Chapter DI diagnosis- engine electronic control fault diagnosis–injector circuit
failure) EG
Check if the result is ok?
Yes>go to Step 4. TR
NO>replace the injector or relevant harness.
4. Check the crankshaft/cam shaft position sensor and relevant circuit AX
a. Check the crankshaft position sensor (refer to Chapter DI diagnosis- engine electronic control fault
diagnosis–crank position sensor failure)
FR
b. Check the camshaft position sensor (refer to Chapter DI diagnosis- engine electronic control fault
diagnosis–camshaft position sensor failure)
ST
Check if the result is ok?
Yes>go to Step 5.
BR
NO>replace the failed sensor or harness.
5. Check the coolant temperature sensor and circuit
BW
a. Check the coolant temperature sensor. (refer to Chapter DI diagnosis- engine electronic control fault
diagnosis–coolant manifold temperature sensor failure)
EL
Check if the result is ok?
Yes>go to Step 6.
NO>replace relevant sensors or harness.
6. Check the accelerator pedal sensor and circuit
a. Check the accelerator pedal(refer to “Chapter DI Diagnosis-Diagnosis of Engine Electric Control
Fault-Fault of Accelerator Pedal”)
Check if the result is ok?
Yes>go to Step 7.
NO>replace relevant sensors or harness.
7. Replace and check ECM
a. Replace ECM.
b. Check if the failure is eliminated.
DI-095
