SB-18
SEAT BELT WARNING SYSTEM
Vehicle Speed Signal Inspection
EHS000GZ
1. COMBINATION METER CHECK
Check the speed meter in combination meter operates normally.
OK or NG
OK >> GO TO 2.
NG >> Check combination meter system. Refer to DI-12, "
SYMPTOM CHART" (LHD models) or DI-32,
"SYMPTOM CHART" (RHD models).
2. VEHICLE SPEED INPUT SIGNAL INSPECTION
Start the engine, and check the voltage between time control unit harness connector M31 terminal 36 (*).
NOTE:
*: Wire color is different depending on vehicle. Each wire color are as follows:
OK or NG
OK >> System is OK.
NG >> GO TO 3.
Terminal
Vo l ta g e
(+) (–)
36* Ground
Vehicle Wire color
A/T models L/W
M/T models with gasoline engine L/Y
Diesel engine models L/B
SHIA0321EELF1080D
DI-12
COMBINATION METERS (LHD MODELS)
SYMPTOM CHART
Symptom Possible cause Repair procedure
Fuel warning lamp is
malfunctioning.
1. Sensor Signal
–Engine revolution signal
–Fuel gauge
–Water temp gauge
2. Unified meter control unit 1. Check the sensor for malfunctioning meter/gauge.
–INSPECTION/ENGINE SPEED SIGNAL (Refer to DI-13, "Inspec-
tion/Engine Speed Signal" .)
–INSPECTION/FUEL LEVEL SENSOR UNIT (Refer to DI-17,
"Inspection/Fuel Level Sensor Unit" .)
–INSPECTION/THERMAL TRANSMITTER (Refer to DI-14,
"Inspection/Water Temperature Gauge /Gasoline Engine Models"
or DI-15, "Inspection/Water Temperature Gauge (Diesel Engine
Models)" .)
2. Replace combination meter One of tachometer/fuel
gauge/water temp. gauge is
malfunctioning.
Speedometer and odo/trip
meter is malfunctioning.1. Sensor Signal
–Vehicle speed signal
2. Unified meter control unit 1. Check the sensor for malfunctioning meter/gauge.–INSPECTION/VEHICLE SPEED SIGNAL (Refer to DI-13,
"Inspection/Engine Speed Signal" .)
2. Replace combination meter
Multiple meter/gauge are
malfunctioning.
●Unified meter control unit●Replace combination meter.
