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Toyota T100 SR5 Extra Cab Pickup 2WD V6-34L Service Manuals

Temperature Gauge > < Speedometer Head|Testing and Inspection
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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

Temperature Gauge > < Speedometer Head|Testing and Inspection