Page 325 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-179

(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
(c) Pry out main fan relay R5, R16 and auxiliary fan relay R4
(d) Check whether main fan relay R5, R16 and auxiliary fan relay R4 are good.
Is the inspection result normal?
04
YES>To step 4.
NO> Replace main fan relay R5, R16 and auxiliary fan relay R4

4 . Check fan control circuit fuse power supply circuit.
(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.
(c) Pry out main fan relay R5, R16 and auxiliary fan relay R4
(d) Connect the battery negative cable.

(e) Use a multimeter to measure the voltage
between the pin 30 of main fan relay R5 and
the ground.

Standard voltage
Multimeter connection
Standard value
pin

R5（30）- ground Battery voltage

(f) Use a multimeter to measure the voltage
between the pin 30 of main fan relay R16 and
the ground.
Standard voltage

Multimeter connection
Standard value
pin

R16（30）- ground Battery voltage

Page 325