Page 1092 - Foton Workshop Manual - Tunland (AT)

04-946 DIAGNOSTICS - ASSEMBLY INSTRUMENT

WATER TEMPERATURE ALARM LAMP FAILS TO GO

ON/NORMALLY ON
Circuit diagram

Battery
04
A
Engine Coolant
F2 compartment temperature
60A fuse box sensor
A020 E09
B

R-G Ignition switch 43 46
ON/START Loop Signal
Engine ECU module
C105
4 A306
15 16
R-G
2
C65

F7 F26 Interior
7.5A 10A fuse box
C037

P-B O-R
R-W L-Y
3 1 16 15
Battery Power Ignition CANH CANL
power supply Combination
nstrument
C013
Ground
2
B

C22

ftwxd041291
Diagnostic steps

• When water temperature is too low or resistance of engine coolant temperature
sensor is ≥ 5KΩ, the water temperature alarm lamp fails to go on.

• When engine coolant temperature sensor does not work or Engine Coolant
Temperature Sensor is open-circuited, the water temperature alarm lamp fails
to go on.
• When coolant level is lower than the standard lowest graduation, the water
temperature alarm lamp will be constantly on.
• When water temperature is too high (water temperature is ≥ 102 ℃ ), water
temperature alarm lamp will flicker.
• When the Engine Coolant Temperature Sensor is short-circuited, the water
temperature alarm lamp will flicker.
• When ignition switch is set to ON, water temperature alarm lamp will go on for
about 3 seconds and then normally on.
• Verify that the coolant level is within the standard graduation.

Page 1092