Toyota Celica 2005, Руководство по ремонту

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BE1D4 − 04
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A
B
C
D
Z11368
1
2
3
BE − 50
− BODY ELECTRICAL COMBINATION METER
2005 CELICA (RM1131U)
INSPECTION
1. INSPECT SPEEDOMETER ON − VEHICLE
Using a speedometer tester, inspect the speedometer and
check the operation of the odometer.
HINT:
Tire wear and tire over or under inflation will increase the indica-
tion error.
If error is excessive, replace the speedometer.
USA (mph) CANADA (km/h)
Standard indication Allowable range Standard indication Allowable range
20 19 − 22 20 18 − 23
40 39 − 42.5 40 40 − 44
60 59.5 − 63.5 60 60 − 64.5
80 80 − 85 80 80 − 85
100 100 − 105.5 100 100 − 105
120 120 − 125.5 120 120 − 125.5
140 140 − 146
160 160 − 167
2. INSPECT SPEEDOMETER RESISTANCE
Measure the resistance between terminals with fixing pointer to
the stopper.
Tester connection Resistance ( Ω )
A − B 250
C − D 250
If resistance value is not as specified, replace the meter.
3. INSPECT VEHICLE SPEED SENSOR OPERATION
(a) Connect the battery positive (+) lead to terminal 1 and the
battery negative (
− ) lead to terminal 2.
(b) Connect the tester positive (+) lead to terminal 3 and the
tester negative (
− ) lead to terminal 2.
(c) Rotate the shaft.
(d) Check that there is voltage change from approx. 0 V to 11
V between terminals 2 and 3.
HINT:
The voltage change should be 4 times for every revolution of
the speed sensor shaft.
If operation is not as specified, replace the sensor.
4. INSPECT TACHOMETER ON − VEHICLE
(a) Connect a tune − up test tachometer, and start the engine.
NOTICE:
Reversing the connection of the tachometer will damage
the transistors and the diodes inside.
(b) Compare the tester indications with the tachometer in-
dications.
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