Trouble Symptom; Electrical Check; Instrument Cluster Doesn’t Work; Speedometer Fault - Lifan 620 Maintenance Manual

IV. Trouble Symptom
Symptom
1 1 Faulty fuse
Instrument cluster 2 Faulty wiring and connector
does not work 3 Faulty instrument cluster
1 Faulty engine or ECM
3
2 Faulty wiring and connector
Tachometer fault
3 Faulty instrument cluster
5 1 Faulty coolant temperature sensor
Water thermometer 2 Faulty wiring and connector
fault 3 Faulty instrument cluster
1 Faulty door lamp switch of four
7
doors
Seat belt reminder
2 Faulty air bag ECU
buzzer does not
3 Faulty wiring and connector
work properly
4 Faulty instrument cluster
V. Electrical check
1. Instrument cluster doesn't work
(1) Check steps
1) Check the power (60A) fuse of driver's cabin (located on the distribution box inside the engine
room). If it is in a normal condition, go to step 2), if not, change the fuse of instrument.
2) Check the live (10A) fuse of instrument cluster (located on the fuse box of instrument desk). If it
is in a normal condition, go to step 3), if not, change the fuse of instrument.
3) Check the ignition (5A) fuse of instrument cluster (located on the fuse box of instrument desk). If
it is in a normal condition, go to step 4), if not, change the fuse of instrument.
4) Check the instrument cluster.
Remove the instrument cluster,
①
connector terminals A18, A19 and A20 of instrument cluster and the body, normally around 10～
14V.
Check the resistance between connector terminal A9 and the body, normally less than 1Ω. If it
②
is in a normal condition, replace the instrument cluster, if not, repair or change the wire and
connector.
(2) Check the circuit as shown in Fig. 4-20.

2. Speedometer fault

(1) Check steps
1) Check the power input end of speed sensor.
Ignition switch ON-position, check the voltage between 1-T2 and the body, normally around 10～
14V.
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Table 4-3
Table 4-3
Cause
ignition switch on-position, check the voltage between
201
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Symptom
2 1 Faulty speed sensor
Speedometer 2 Faulty wiring and connector
fault 3 Faulty instrument cluster
1 Faulty fuel level sensor
4 Fuel gauge
2 Faulty wiring and connector
fault
3 Faulty instrument cluster
1 Faulty instrument cluster
6 Reverse 2 Faulty BCM controller
radar alarm 3 Faulty reverse radar probe
buzzer does 4 Faulty reversing switch
not work 5 Faulty key unlocking alarm
properly switch
6 Faulty wiring and connector
8 Door ajar 1 Faulty door lamp switch of
buzzer does four doors
not work 2 Faulty wiring and connector
properly 3 Faulty instrument cluster
Cause