Page 391 - Foton Workshop Manual - Tunland (AT)
P. 391
DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-245
(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
04
of ECM connector E01 respectively.
Standard resistance
Multimeter connection Standard value
pin
E07（1）- E01（86） ＜10 Ω
E07（3）- E01（40） ＜10 Ω
E07（4）- E01（22） ＜10 Ω
(f) Use a multimeter to measure the resistance
between the pin 1, 3, 4 of intake mass flow
sensor connector E07 and the ground
respectively.
Standard resistance
Multimeter connection
Standard value
pin
E07（1）- ground ＞ 10 MΩ
E07（3）- ground ＞ 10 MΩ
E02（4）- ground ＞ 10 MΩ
Is the inspection result normal?
YES>To step 6.
No > Maintain or replace the harness.
6 . Replace the intake mass flow sensor
(a) Replace the intake mass flow 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 the intake mass flow sensor.
NO >To step 7.
7 . Check the power circuit of the turbocharger actuator
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