Toyota Celica 2005 Repair Manual page 2225

BE−50
Standard indication
20
40
60
80
100
120
A
D
1
2005 CELICA (RM1131U)
BODY ELECTRICAL
INSPECTION
1.
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)
Allowable range Standard indication
2.
Measure the resistance between terminals with fixing pointer to
C
the stopper.
B
If resistance value is not as specified, replace the meter.
I11724
3.
(a)
3
(b)
2
(c)
(d)
HINT:
Z11368
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.
(a)
NOTICE:
Reversing the connection of the tachometer will damage
the transistors and the diodes inside.
(b)
− COMBINATION METER
INSPECT SPEEDOMETER ON−VEHICLE
19− 22 20
39 − 42.5 40
59.5 − 63.5 60
80 − 85 80
100 − 105.5 100
120 − 125.5 120
140
160
INSPECT SPEEDOMETER RESISTANCE
Tester connection
A − B
C − D
INSPECT VEHICLE SPEED SENSOR OPERATION
Connect the battery positive (+) lead to terminal 1 and the
battery negative (−) lead to terminal 2.
Connect the tester positive (+) lead to terminal 3 and the
tester negative (−) lead to terminal 2.
Rotate the shaft.
Check that there is voltage change from approx. 0 V to 11
V between terminals 2 and 3.
INSPECT TACHOMETER ON−VEHICLE
Connect a tune−up test tachometer, and start the engine.
Compare the tester indications with the tachometer in-
dications.
2224
CANADA (km/h)
Allowable range
Resistance (Ω)
250
250
BE1D4−04
18 − 23
40 − 44
60 − 64.5
80 − 85
100 − 105
120 − 125.5
140 − 146
160 − 167