Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Vehicle Speed Sensor: Testing and Inspection





A/T Speed Pulser Test

CAUTION:
- Set the parking brake securely and block the rear wheels.
- Make sure jacks and safety stands are placed properly
.

1. Jack up the front of the car and support with safety stands.

2. Disconnect the A/T speed pulser 2P connector.

3. Rotate the front wheels and be sure that continuity and no continuity appear alternately between the two terminals.