Page 645 - Workshop Manual - Tunland (2017)

DIAGNOSTICS - ASSEMBLY INSTRUMENT 04-507

• Ignition switch: ON, confirm whether there is enough fuel in the fuel tank (greater
than 1/4 fuel liquid level).
• When the fuel level of the fuel tank is lower than 27± 2.5 mm or fuel sensor
resistance value is greater than 189 ± 4 Ω, fuel alarm indicating lamp will be on.
• When the fuel level of the fuel tank is greater than 27± 2.5 mm or fuel sensor
resistance value is lower than 189 ± 4 Ω, fuel alarm indicating lamp will be off. 04

1 . Check the fuel sensor

(a) Ignition Switch: OFF.

(b) Disconnect the connector of the fuel sensor
B001.

(c) Use a multimeter to measure the resistance
between pin 2 and pin 3 of the connector of
the fuel sensor B001.
(d) Dismantle the fuel sensor, imitate the states
B001
of different positions under the fuel liquid
surface according to the form below.
1 2 3 4
Floater Alarm
Empty: 1/4 1/2 3/4 Full
position position

Resistance 283 ± 189 ± 137 ± 89 ± 62 ± 38 ±
（ Ω ） 6 4 4 3 2.5 1.5

ftwxd041308

Check whether the result is normal?
Yes> go to step 2
If no > Replace the fuel sensor..

2 . Check whether the signal circuits of the fuel sensor is of open circuit
(a) Ignition Switch: ON.