Wave profile Inspection: Notes

WARNING: This page is about a different variant/trim than selected.

Remove the TCM. (See TCM REMOVAL/INSTALLATION ).
Connect WDS or equivalent to DLC connector.
Connect oscilloscope test leads to the following TCM connector terminals.
- (+) lead: TCM terminal 2P
- (-) lead: TCM terminal 1P
Start the engine.
Monitor VSS PID.
Inspect wave profile.
- TCM terminal: 2P (+) - 1P (-)
- Oscilloscope setting: 1 V/DIV (Y), 2.5 ms/DIV (X), DC range
- Vehicle condition: drive the vehicle with 32 km/h{20 mph}
  - If wave profile or voltage are out of specifications, carry out the "Open Circuit Inspection" or "Short Circuit Inspection"
    
    Fig 1: Oscilloscope Waveform Graph
    Courtesy of MAZDA MOTORS CORP.