Page 344 - Foton Workshop Manual - Tunland (AT)
P. 344
04-198 DIAGNOSTICS - ENGINE CONTROL SYSTEM
(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
(c) Disconnect intake mass flow sensor connector E07.
(d) Connect the battery negative cable.
(e) Ignition switch: ON.
04
(f) Use a multimeter to measure the voltage
between the pin 2 of intake mass flow sensor
connector E07 and ground.
Standard voltage
Multimeter connection
Standard value
pin
E07（2）- ground Battery voltage
Is the inspection result normal?
YES>To step 4.
No > Maintain or replace the harness.
4 . Check intake mass flow sensor harness
(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
(c) Disconnect intake mass flow sensor connector E07.
(d) Disconnect connector E01 of ECM.
(e) Use a multimeter to measure the resistance
between the pin 1, 3, 4 of intake mass flow
sensor connector E07 and the pin 80, 40, 22
of ECM connector E01 respectively.
Standard resistance：
Multimeter connection
Standard value
pin
E07（1）- E01（80） ＜10 Ω
E07（3）- E01（40） ＜10 Ω
E07（4）- E01（22） ＜10 Ω
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