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)

Or, hide this message: temporarily or permanently

Component Tests and General Diagnostics

Vehicle Speed Sensor (VSS) On-Vehicle Inspection
1. Hoist vehicle.
2. Release parking brake lever, set transmission in neutral and transfer in 2H".
3. Remove ECM (PCM) cover.
4. Connector voltmeter between VSS terminal "C51-3-1" of ECM (PCM) connector and body ground.




5. Turn ignition switch ON and turn rear right tire slowly with rear left tire locked.

Voltmeter should indicate deflection between 0 - 1 V and 8 - 14 V a few times while tire (1) is turned one revolution.
If check result is not satisfactory, proceed to "DTC P0500: Vehicle Speed Sensor (VSS) Malfunction:".