Panel/combination instrument--combination instrument
2. Inspect output signal of vehicle speed.
(1) When vehicle run at 10km/h, inspect voltage between ter-
minal10 and terminal A1 of combination instrument assembly.
Standards: the voltage pulsates repeatedly between
0V to 5V for thirteen times.
Notes: Inspect the ignition switch “on” connects the
joint
3. Inspect speed gauge
(1) Connect a test tachometer. then startup the engine.
Notes:
zTachometer terminals polarity connects oppositely will damage interior transistors and
LEDs.
zWhen move or disassemble tachometer. do not drop on the ground or knock the surface.
(2) Compare indicted value test tachometer and combination instrument tachometer.
Standard indicted value (rmp) permitted values (rpm)
700 630-770
1,000 (900-1,100)
2,000 (1,850-2,250)
3,000 2,850-3,150
4,000 (3,800-4,200)
5,000 4,750-5,250
6,000 (5,700-6,300)
7,000 6,650-7,350
DC 13.5V, 25°C
(1) Disassemble the joint of fuel meter
(2) Turn ignition switch to ON, inspect indictor position of fuel guage.
Indictor position: F
(3) Connect short terminal1 and terminal2 of wiring harness sides. Turn ignition switch to ON, inspect
indictor position of fuel guage.
Indictor position: F
5. Inspect low fuel level indictor 4. Inspect fuel gauge
The fuel gauge has the function of sensor detection (that is
failure treatment of oil level tachometer)that is when fuel gauge
indictor is at E position, if low oil level warning light doesn”t
light, first should judge whether there have open-loop trouble of
fuel sensor or wiring harness. When sensor fails, fuel indictor
should stop at current position. But if failing time is over 20
seconds, the indictor will return to E position quickly, the in-
strument will at wire break detection. If the normal situation of
detection panel is over 20 seconds, indicator will return to normal.
A1A20
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Panel/combination instrument--combination instrument
(1) Disassemble fuel meter joints or break wire, when indictor is at E, fuel indictor does not light.
(2) Jumper a 300-330
resistor from the corner of terminal1 and termianl2, turn ignition switch to ON,
indictor is at E line, the indictor light lights.
6. Inspect generator water thermometer .
(1) Disassemble joint of generator water thermometer
(2) Turn ignition switch to ON, inspect indictor position of gen-
erator water thermometer.
Indictor position: COOL
(3) Earth 2 terminal of the wiring harness side joint to inspect
indictor position of generator water thermometer.
Indictor position: HOT
1 2 3
7. Inspect untied indictor light of driver seat belt.
(1) Turn ignition switch to ON, Inspect untied indictor light of driver seat belt lights.
(2) Tie the seat belt, inspect untied indictor light seat belt lights off.
(3) Disassemble the joint of safe belt button switch, earth the terminals of wiring harness
(4) Turn ignition switch to ON, inspect untied indictor light seat belt lights on.
8. Inspect low oil pressure indictor
(1) Disassemble the joint of oil pressure switch.
(2) Turn ignition switch to ON.
(3) Earth terminals of wiring harness sides, inspect low oil pressure indictor.
Low oil pressure indictor: light
9. Inspect oil pressure switch
(1) disassemble joints of oil pressure switch,
(2) Inspect the conduction of oil pressure switch terminals and earth.
Generator extinguishes: conduction
Generator works: not conduction
10. Inspect light warning buzzer
(a) Inspect the function of light warning buzzer
Clues on: light warning buzzer works together, only key
reminding buzzer works.
(1) Front combination light switch switches to ON, extract the
key, open driver seat door, inspect light warning buzzer.
Audio buzzer: Audio for 10 seconds in the night to cut
lamp power, in the day cut the lamp instantly.
(2) When buzzer works, do any one of the followings, inspect whether buzzer stop buzzing.
z z z z
zTurn front combination switch to OFF.
z z z z
zClose driver seat door.
z z z z
zInsert the key.
Buzzer Light switch
Key warning
switch
Pull out the key
Open driver door
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