Page 418 - Foton Workshop Manual - Tunland (AT)

04-272 DIAGNOSTICS - ENGINE CONTROL SYSTEM

3 . Check DPF temperature sensor circuit
(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
(c) Disconnect DPF temperature sensor connector Q01.
(d) Connect the battery negative cable.
04
(e) Ignition switch: ON.
(f) Use a multimeter to measure the resistance
between the pin 4 of DPF temperature sensor
connector Q01 and the ground.
Standard voltage

Multimeter connection
Standard value
pin
Q01（4）- ground Battery voltage

Is the inspection result normal?
YES>To step 4.
No > Maintain or replace the harness.

4 . Check DPF temperature sensor harness
(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
(c) Disconnect DPF temperature sensor connector Q01.
(d) Disconnect connector E01 of ECM.

(e) Use a multimeter to measure the resistance
between the pin1 of DPF temperature sensor
connector Q01 and the ground.
Standard resistance

Multimeter connection Standard value
pin

Q01（1）- ground ＜10 Ω

Page 418