Page 479 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-333

(f) Use a multimeter to measure the voltage
between the pin1, 2 of DPF pressure sensor
connector Q02 and the ground respectively.
Standard resistance

Multimeter connection
Standard value
pin 04
Q02（1）- ground ＞ 10 MΩ

Q02（2）- ground ＞ 10 MΩ

Is the inspection result normal?
YES>To step 5.
No > Maintain or replace the harness.

5 . Replace DPF pressure sensor
(a) Replace DPF pressure sensor.
(b) Use a diagnostic apparatus to perform DTC verification procedures.
(c) Implement the steps to read sensor data stream.
(d) Check whether DTC exists.
Is the inspection result normal?

YES>Replace DPF pressure sensor.
NO >To step 6.

6 . Replace ECM

(a) Replace ECM.
(b) Use a diagnostic apparatus to perform DTC verification procedures.
(c) Implement the steps to read sensor data stream.
(d) Verify that no DTC exists and the data are normal.

Page 479