Page 349 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-203

Multimeter connection pin Standard value
A19（1）- A024（46） ＜2 Ω

A19（2）- A024（21） ＜2 Ω

(l) Use a multimeter to measure the resistance between the pin 1, 2 of intake heater relay
04
A19 and the ground respectively.
Standard resistance

Multimeter connection pin Standard value
A19（1）- ground ＞ 10 MΩ

A19（2）- ground ＞ 10 MΩ

Is the inspection result normal?

YES>To step 5.
No > Maintain or replace the harness.

5 . Replace the intake heater

(a) Replace the intake heater.
(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 heater.
NO >To step 6.

6 . Replace ECM
(a) Replace ECM.
(b) Use a diagnostic apparatus to perform DTC verification procedures.
(c) Implement the steps to read sensor data stream.
(d) Verify that no DTC exists and the data are normal.

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