Page 302 - Foton Workshop Manual - Tunland (AT)

04-156 DIAGNOSTICS - ENGINE CONTROL SYSTEM

YES>To step 2.

NO>Intermittent trouble exists.

2 . Check coolant temperature 1 sensor
(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
04
(c) Disconnect the coolant temperature sensor connector E09.
(d) Check the resistance of the coolant temperature 1 sensor.
Standard resistance:180Ω～160KΩ

Is the inspection result normal?

YES>To step 3.
NO> Replace coolant temperature 1 sensor.

3 . Check coolant temperature 1 sensor harness

(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
(c) Disconnect the coolant temperature sensor connector E09.
(d) Disconnect connector E01 of ECM.

(e) Use a multimeter to measure the resistance
between the pin A, B of coolant temperature
1 sensor connector E09 and the pin 43, 46 of
ECM connector E01 respectively.
Standard resistance

Multimeter connection
Standard value
pin
E09（A）- E01（43） ＜10 Ω

E09（B）- E01（46） ＜10 Ω

Page 302