Corolla S Sedan L4-1.8L (1ZZ-FE) (2002)
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Tachometer: Testing and Inspection
INSPECT TACHOMETER ON-VEHICLE
a. Connect a turn-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.
b. Compare the tester and tachometer indications.
DC 13.5 V 25 °C at (77 °F)
