Page 1065 - Workshop Manual - Tunland (2017)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-379

Is the inspection result normal? 04

YES>To step 5.
No >Maintenance related faults.

5 . Check PTO or remote PTO switch
(a) Check whether the PTO or remote PTO switch is damaged.
(b) Check whether the PTO or remote PTO switch circuit is normal.

Is the inspection result normal?
YES>To step 6.

No >Maintenance related faults.

6 . Check accelerator pedal position sensor
(a) Check whether accelerator pedal position sensor is damaged.
(b) Check whether accelerator pedal position sensor circuit is normal.

Is the inspection result normal?
YES>To step 7.

No >Maintenance related faults.

7 . Check vehicle speed sensor
(a) Check whether the vehicle speed sensor is damaged.
(b) Check whether the vehicle speed sensor circuit is normal or not.

Is the inspection result normal?
YES>To step 8.
No >Maintenance related faults.

8 . Check gearshift mechanism
(a) Check whether the gearshift mechanism is in neutral position.

Is the inspection result normal?
YES>To step 9.
No >Maintenance related faults.

9 . Check postprocessing DPF.
(a) Check whether postprocessing DPF can work normally.

Is the inspection result normal?
YES>To step 10.
No >Maintenance related faults.

10 . Replace ECM
(a) Replace ECM. (Refer to "Chapter 11 Engine control system, Engine control module")
(b) Check the data flow of the engine, and make sure the engine phenomenon does not
exist, the system is normal.