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COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-32
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Speedometer does not work (the other meters work).
Speedometer Circuit
IGNITION
SWITCH (IG1)
VEHICLE
SPEED
SENSORDIAGNOSIS
CONNECTORCOMBINATION
METER
ENGINE-ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet CONTROL CIRCUIT
FRONT SIDE
NOTE
LH drive vehicles
RH drive vehicles
,

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-37
INSPECTION PROCEDURE 2: Speedometer does not work (the other meters work).
IGNITION
SWITCH (IG1)
A/T
CONTROL
RELAY
OUTPUT
SHAFT
SPEED
SENSOR
DIAGNOSIS
CONNECOTR
ENGINE-
A/T-ECUCOMBINATION METER
ENGINE-
A/T-ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
FRONT SIDE
NOTE
LH drive vehicles
RH drive vehicles
CONTROL CIRCUIT
Speedometer Circuit

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-44
INSPECTION PROCEDURE 3: Tachometer does not work (the other meters work).
TECHNICAL DESCRIPTION (COMMENT)
Ignition signal may not be received from the
engine-ECU, or the combination meter assembly, the
wiring harness, or the connector(s) may be defective.
TROUBLESHOOTING HINTS
•Malfunction of the combination meter assembly
•The wiring harness or connectors may have
loose, corroded, or damaged terminals, or
terminals pushed back in the connector.
ENGINE-ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet ENGINE-A/T-ECU
M/T
A/T
NOTELH drive vehicles
RH drive vehicles
COMBINATION
METER
CONTROL
CIRCUIT
Tachometer Circuit

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-48
INSPECTION PROCEDURE 4: Fuel gauge does not work (the other meters work).
TECHNICAL DESCRIPTION (COMMENT)
If only the fuel gauge does not operate, fuel gauge
unit the combination meter, wiring harness or
connector(s) may be defective.
TROUBLESHOOTING HINTS
•Malfunction of the fuel gauge unit.
•The wiring harness or connectors may have
loose, corroded, or damaged terminals, or
terminals pushed back in the connector.
•Malfunction of the combination meter.
COMBINATION
METER
CONTROL
CIRCUIT
FUEL
GAUGE
UNIT
LH drive vehicles SEDAN
LH drive vehicles WAGON NOTE
LH drive vehicles
RH drive vehicles
,,
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : VioletFuel Gauge Circuit

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-51
INSPECTION PROCEDURE 5: Engine Coolant Temperature Gauge does not Work (the other meters
work).
TECHNICAL DESCRIPTION (COMMENT)
If only the engine coolant temperature gauge does
not operate, the combination meter, the wiring
harness or its connector may be defective.
TROUBLESHOOTING HINTS
•Malfunction of the engine coolant temperature
gauge unit
•The wiring harness or connectors may have
loose, corroded, or damaged terminals, or
terminals pushed back in the connector.
•Malfunction of the combination meter.
DIAGNOSIS PROCEDURE
STEP 1. Check the engine coolant temperature
gauge unit.
Check to see that the engine coolant temperature
gauge unit operate normally. Refer to P.54A-61.
Q: Is the engine coolant temperature gauge unit
normal?
YES :
Go to Step 2.
NO : Replace the fuel gauge unit. Then go to step
4.
COMBINATION
METER
CONTROL
CIRCUIT
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet ENGINE COOLANT
TEMPERATURE
GAUGE UNIT
NOTELH drive vehicles
RH drive vehicles
Engine Coolant Temperature Gauge Circuit

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-54
INSPECTION PROCEDURE 6: Combination meter does not work. (the instruments do not work)
TECHNICAL DESCRIPTION (COMMENT)
The cause is thought to be malfunction of the power,
earth circuitry or combination meter.
TROUBLESHOOTING HINTS
•Malfunction of the combination meter
•Damaged wiring harness or connectors
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet IGNITION
SWITCH (IG1)
COMBINATION
METER
CONTROL CIRCUIT BATTERY
RELAY
BOX
NOTELH drive vehicles
RH drive vehicles
Combination Meter Power Source Circuit

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-6
INSPECTION PROCEDURE 2: Inside/Outside Air Selection is not possible.
COMMENTS ON TROUBLE SYMPTOM
If the inside/outside air selection damper motor does
not operate normally, the inside/outside air selection
damper motor system may be defective.
TROUBLESHOOTING HINTS
•Malfunction of the inside/outside air selection
damper motor
•Damaged the wiring harness or connectors
•Malfunction of the manual air conditioner control
panel (A/C-ECU)
IGNITION
SWITCH (IG2)
OUTSIDE/INSIDE
AIR SELECTION
DAMPER CONTROL MOTOR
A/C-ECU
HEATER CONTROL PANEL
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet

Outside/Inside Air Selection Damper Control Motor Circuit

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-11
INSPECTION PROCEDURE 3: When the A/C is Operating, Temperature Inside the Passenger
Compartment does not Decrease (Cool Air is not Emitted).
ENGINE-ECU
A/C-ECUDUAL
PRESSURE
SWITCH
RESISTOR ENGINE-A/T-ECU
HEATER CONTROL PANEL
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
AIR THERMO
SENSOR
NOTEM/T
A/T
A/C-ECU System Circuit