Page 123 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 69

c. Disconnect the NO x sensor connector F057 and ECM connector F099. IN

d. Measure the resistance between Pin 2, 3 of NO x sensor
connector F057 and Pin 62, 84 of ECM connector F099. DI
Standard resistance:

Multimeter connection Standard value EG

F057(2)-F099(62) About 0Ω
TR
F057(3)-F099(84) About 0Ω

AX
Check if the result is ok?
Yes > go to Step 5.
FR
No > Check, repair or replace the CAN signal circuit.
5. Replace and check the nitrogen oxide sensor. ST

a. Replace the nitrogen oxide sensor.
b. Use the diagnosis instrument to perform DTC confirmation procedure. BR
c. Perform the procedure of reading the sensor data stream Confirm if the inspection result is ok.
Check if the result is ok? BW

Yes> Replace the nitrogen oxide sensor.
NO>go to Step 6. EL
6. Replace ECM

a. Replace ECM.
b. Use the diagnosis instrument to perform DTC confirmation procedure.

c. Perform the procedure of reading the sensor data stream.
d. Confirm there is no DTC and the data is normal.

DI-069