Page 1112 - Foton Workshop Manual - Tunland (AT)

04-966 DIAGNOSTICS - ASSEMBLY INSTRUMENT

Diagnostic step

• 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.

04 • 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.

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.

B001 (d) Dismantle the fuel sensor, imitate the states
of different positions under the fuel liquid
surface according to the form below.
1 2 3 4

ftwxd041308

Floater Alarm
Empty: 1/4 1/2 3/4 Full
position position

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

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

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