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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Vehicle Speed Sensor (VSS)





1. Remove the vehicle speed sensor and connect as shown in the illustration, using a 3-10 K Ohms resistance.
2. Use a voltmeter to check for voltage at terminals (2) and (3) when the pulse generator shaft is tuning (One revolution is four pulses.)
3. It within the standard value, the vehicle speed sensor is OK.
If not within the standard value, replace the vehicle speed sensor.