Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2011 Mazda RX8 2RTR-1.3LFACTORY OEM SERVICE PROCEDURE
Control Module: Testing and Inspection
TCM INSPECTION [SJ6A-EL]
Terminal Voltage Table (Reference)
NOTE:
- Use the ground of terminal 1P and 1X of the TCM when measuring terminal voltage, as an error may occur when connecting the negative circuit tester to ground.
Inspection Using An Oscilloscope (Reference)
Turbine sensor (+)
- TCM terminal: 2A
- Oscilloscope setting: 2 V/DIV (Y) 2 ms/DIV (X)
- Measuring condition: Vehicle speed at 30 km/h {19 mph} (D range 1GR)
Vehicle speed (+)
- TCM terminal: 2D
- Oscilloscope setting: 2.5 V/DIV (Y) 1 ms/DIV (X)
- Measuring condition: Vehicle speed at 30 km/h {19 mph} (D range 1GR)
Shift solenoid F control (+)
- TCM terminal: 1Z
- Oscilloscope setting: 2.5 V/DIV (Y) 1 ms/DIV (X)
- Measuring condition: M range 5GR
Shift solenoid F control (-)
- TCM terminal: 1O
- Oscilloscope setting: 100 mV/DIV (Y) 1 ms/DIV (X)
- Measuring condition: M range 5GR
Shift solenoid G control (+)
- TCM terminal: 1Y
- Oscilloscope setting: 2.5 V/DIV (Y) 1 ms/DIV (X)
- Measuring condition: M range 1GR
Shift solenoid G control (-)
- TCM terminal: 1L
- Oscilloscope setting: 50 mV/DIV (Y) 1ms/DIV (X)
- Measuring condition: M range 1GR
TCC control solenoid control (+)
- TCM terminal: 1Q
- Oscilloscope setting: 2.5 V/DIV (Y) 1 ms/DIV (X)
- Measuring condition: P, N position, Idle
TCC control solenoid control (-)
- TCM terminal: 1D
- Oscilloscope setting: 50 mV/DIV (Y) 1 ms/DIV (X)
- Measuring condition: P, N position, Idle
Line pressure control solenoid control (+)
- TCM terminal: 1R
- Oscilloscope setting: 2.5 V/DIV (Y) 1 ms/DIV (X)
- Measuring condition: P, N position, Idle
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
