Panel/combination instrument--combination instrument
Panel / combination instrument
combination instrument
Trouble table
Lightening:
Phenomenon
All lights fail
Only one light failsPossible parts of trouble
1. combination instrument assembly
2. joint or harness
1. combination instrument assemblyReference pages
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Indicator light:
Phenomenon
Trouble light fails
Charge light fails
Brake system light fails
ABS light fails
SRS lights fails
Door light fails
low fuel level light fails
low Oil pressure light failsPossible parts of trouble
1. harness or joint
2. engine ECU
3. combination instrument assembly
1. harness or joint
2. engine ECU
3. combination instrument assembly
1. harness or joint
2. ABS ECU
3. combination instrument assembly
1. harness or joint
2. ABS ECU
3. combination instrument assembly
1. harness or joint
2. airbag sensor assembly
3. combination instrument assembly
1. harness or joint
2. door control switch
3. combination instrument assembly
1. harness or joint
2. fuel level light switch
3. combination instrument assembly
1. combination instrument assembly
2. oil pressure light switch
3. harness or jointReference pages
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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.
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Panel/combination instrument--combination instrument
(b) Inspect light warning buzzer function
(1) Disassemble combination instrument.
(2) Connect battery positive wire to terminal A5 and nega-
tive to terminal A1 and A2.
(3) Connect battery positive wire to terminal A18 and nega-
tive to terminalA17,inspect buzzer.
Audio buzzer: long buzzes
(4) When buzzer works, connect battery positive wire to ter-
minal A4,inspect whether buzzer stop working.
11. Inspect key buzzer
(a) Inspect when key buzzer and light warning buzzer works
together, only key buzzer works.
(1) Insert the key, when driver seat door opens, turn ignition
switch to OFF (LOCK or ACC). inspect key buzzer works
1HZ discontinuously.
(b) inspect key buzzer function
(1) Disassemble combination instrument.
(2) Connect battery positive wire to terminal A5 and nega-
tive to terminal A1 and A2.
(3) Connect battery negative wire to terminal A17 and B8,
inspect buzzer which should work discontinuously.
(4) When buzzer works, connect battery positive wire to ter-
minal A4,inspect whether buzzer stop working.
12. Inspect brake system indictor
(a) Inspect parking brake system indictor
Key warning
switch
Key switch
1G gear
Pull out the key
Open driver door
Buzzer
B8
B1
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(1) Disassemble the joint of parking brake switch, and earth terminals of wiring harness side joints.
(2) Turn ignition switch to ON, inspect brake system indictor light lights.
(b) Inspect brake oil level indicator light
(1) Disassemble the joint of brake oil level indicator light, connect terminal of wiring harness side
joints.
(2) Turn ignition switch to ON, inspect brake system indicator light lights.
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