Testing the T100 SR5 Extra Cab Pickup 2WD V6-34L (5VZ-FE) Tachometer
Tachometer: Testing and Inspection
INSPECT TACHOMETER ON-VEHICLE
1. Connect a tune-up test tachometer, and start the engine.
NOTE:
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Reversing the connection of the tachometer will damage the transistors and diodes inside.
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When removing or installing the tachometer, be careful not to drop or subject it to heavy shocks.
2. Compare the tester and tachometer indications. DC 13.5 V 20° C at (68 ° F)
If error is excessive, replace the tachometer.
Standard indication (rpm)
Allowable range (rpm)
700
610 - 750
3,000
2,850 - 3,150
5,000
4,850 - 5,150
7,000
6,790 - 7,210