Inspection of TCM and Its Circuits: Inspection: Notes

Remove TCM (1) from vehicle referring to REMOVAL .
Connect TCM connectors (2) to TCM.
Check voltage and/or pulse signal at each terminal of connectors connected using voltmeter (3) and oscilloscope (4).
NOTE:
- As each terminal voltage is affected by battery voltage, confirm that it is 11 V or more when ignition switch is ON.
- Voltage with asterisk (*) cannot be measured by voltmeter because it is pulse signal. Check it with oscilloscope if necessary.
Fig 1: Checking Voltage Connectors Terminal
Courtesy of SUZUKI OF AMERICA CORP.

Terminal arrangement of TCM coupler (Viewed from harness side)

Fig 2: Identifying TCM Connector Terminal
Courtesy of SUZUKI OF AMERICA CORP.