Page 889 - Workshop Manual - Tunland (2017)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-203

(a) Ignition switch: OFF. 04
(b) Disconnect the battery negative cable.
(c) Disconnect the EGR valve connector E18.
(d) Disconnect connector E01 of ECM.

(e) Use a multimeter to measure the resistance
between the pin 1, 3, 4 of EGR valve
connector E18 and the pin 29, 96, 66 of ECM
connector E01respectively.
Standard resistance

Multimeter connection
Standard value
pin

E18（1）- E01（29） ＜10 Ω

E18（3）- E01（96） ＜10 Ω
E18（4）- E01（66） ＜10 Ω

(f) Use a multimeter to measure the resistance
between the pin 1, 3, 4 of EGR valve
connector E18 and the ground respectively.
Standard resistance

Multimeter connection
Standard value
pin

E18（1）- ground ＞ 10 MΩ
E18（3）- ground ＞ 10 MΩ

E18（4）- ground ＞ 10 MΩ

Is the inspection result normal?
YES>To step 4.

No > Maintain or replace the harness.

4 . Replace EGR valve
(a) Replace EGR valve.
(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 EGR valve.
NO >To step 5.