FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Checking the Sensor's Power Supply




Checking The Sensor's Power Supply







Turn the ignition switch to the ON position.












Take a voltage reading.

7 - Throttle body
9 - Throttle body


The reading should be 4.9 V - 5.1 V

Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - III

YES - Continue with Checking The Sensor's Power Supply.












Take a voltage reading.

2 - Throttle body
9 - Throttle body


The reading should be 4.9 V - 5.1 V

Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - IV

YES - Checking Control Module Sensor Input 1