Borrego 4WD V6-3.8L (2009)
Tachometer: Testing and Inspection
Inspection
Tachometer
1. Connect the scan tool to the diagnostic link connector or install a tachometer.
2. With the engine started, compare the readings of the tester with that of the tachometer. Replace the tachometer if the tolerance is exceeded.
CAUTION:
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Reversing the connections of the tachometer will damage the transistor and diodes inside.
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When removing or installing the tachometer, be careful not to drop it or subject it to severe shock.