Symptom Chart

Symptom Chart 1 (Malfunction is Indicated in Diagnosis Mode)

SYMPTOM CHART 1 (MALFUNCTION IS INDICATED IN DIAGNOSIS MODE)

Symptom	Possible causes	Repair order
Odo/trip meter indicate(s) malfunction in Diagnosis mode.	Unified meter control unit	Replace unified meter control unit.
Multiple meter/gauge indicate malfunction in Diagnosis mode.	Unified meter control unit	Replace unified meter control unit.
One of speedometer/tachometer/fuel gauge/water temp. gauge indicates malfunction in Diagnosis mode.	Meter/Gauge Unified meter control unit	Check resistance of meter/gauge indicating malfunction. If the resistance is NG, replace the meter/gauge. Refer to "METER/GAUGE RESISTANCE CHECK", Electrical Components Inspection . If the resistance of meter/gauge is OK, replace unified meter control unit.

Symptom Chart 2 (No Malfunction is Indicated in Diagnosis Mode)

SYMPTOM CHART 2 (NO MALFUNCTION IS INDICATED IN DIAGNOSIS MODE)

Symptom	Possible causes	Repair order
One of speedometer/tachometer/fuel gauge/water temp. gauge is malfunctioning.	Sensor signal Vehicle speed signal Engine revolution signal Fuel gauge Water temp. gauge Unified meter control unit	Check the sensor for malfunctioning meter/gauge. INSPECTION/VEHICLE SPEED SIGNAL (Refer to INSPECTION/VEHICLE SPEED SIGNAL .) INSPECTION/ENGINE REVOLUTION SIGNAL (Refer to INSPECTION/ENGINE REVOLUTION SIGNAL .) INSPECTION/FUEL LEVEL SENSOR UNIT (Refer to INSPECTION/FUEL LEVEL SENSOR UNIT .) INSPECTION/THERMAL TRANSMITTER (Refer to INSPECTION/THERMAL TRANSMITTER .) Replace unified meter control unit.
Multiple meter/gauge are malfunctioning. (except odo/trip meter)

Before starting trouble diagnoses below, perform PRELIMINARY CHECK, Trouble Diagnoses .