Highlander 2WD V6-3.0L (1MZ-FE) (2003)
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Tachometer: Testing and Inspection
INSPECT TACHOMETER
a. Check the operation
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 test and tachometer indications.
