Page 335 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-189

(e) Use a multimeter to measure the resistance
between the pin 1, 2 of engine fuel pump
booster assembly connector E11 and the pin
32, 31 of ECM connector E01 respectively.

Standard resistance

Multimeter connection 04
Standard value
pin
E11（1）- E01（32） ＜10 Ω

E11（2）- E01（31） ＜10 Ω

(f) Use a multimeter to measure the resistance
between the pin 1, 2 of engine fuel pump
booster assembly connector E11 and the
ground respectively.
标准电阻

Multimeter connection
Standard value
pin

E11（1）- ground ＞ 10 MΩ

E11（2）- ground ＞ 10 MΩ

Is the inspection result normal?
YES>To step 3.

No > Maintain or replace the harness.

3 . Replace fuel pump booster assembly
(a) Replace fuel pump booster assembly.
(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>To step 4.

NO> Replace fuel pump booster assembly.

4 . Replace ECM
(a) Replace ECM.
(b) Use a diagnostic apparatus to perform DTC verification procedures.
(c) Implement the steps to read sensor data stream.

Page 335