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.
2009 Mazda RX8 2RTR-1.3LFACTORY OEM SERVICE PROCEDURE
Programming and Relearning
PCM CONFIGURATION [13B-MSP]
CAUTION:
- If the wheel and tire sizes are changed, the set value for the tire rotation diameter will be different, causing a discrepancy whereby the speedometer needle exceeds the allowable range. If the wheel and tire sizes are changed, perform a PCM configuration to change the tire size setting.
Newly Replacing PCM
- Connect the M-MDS to the DLC-2.
- After the vehicle is identified, select the following items from the initial screen of the M-MDS.
- When using the IDS (laptop PC)
1 Select the "Module Programming".
- When using the PDS (Pocket PC)
1 Select the "Programming".
2 Select the "Module Programming".
- Then, select items from the screen menu in the following order.
- Select "Programmable Module installation".
- Select "PCM".
- Perform the configuration according to the directions on the screen.
- Retrieve DTCs by the M-MDS, then verify that there is no DTC present.
- If a DTC(s) is detected, perform the applicable DTC inspection. DTC Table [Engine]
Wheel And Tire Size Change
- Connect the M-MDS to the DLC-2.
- After the vehicle is identified, select the following items from the initial screen of the M-MDS.
- When using the IDS (laptop PC)
- Select the "Module Programming".
- When using the PDS (Pocket PC)
- Select the "Programming".
- Select the "Module Programming".
- Then, select items from the screen menu in the following order.
- Select "Programmable Parameters".
- Select "Tire Size / Axle Ratio".
- Select an item name, and then select option.
Items
- Tire Size ("225/40R19"/"225/45R18"/"225/50R17")
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.