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.
2012 Mazda 5 L4-2.5LFACTORY OEM SERVICE PROCEDURE
Transmission Position Sensor/Switch: Adjustments
TRANSAXLE RANGE (TR) SWITCH ADJUSTMENT [FS5A-EL]
CAUTION:
- Do not allow foreign material or water to penetrate the connector. Otherwise, it could cause poor contact and corrosion.
1. Apply the parking brake firmly and set the wheel blocks for both the front and rear wheels.
2. Shift the selector lever to the N position.
3. Disconnect the TR switch connector.
a. Remove the battery cover. Removal and Replacement
b. Disconnect the negative battery cable.
c. Remove the air cleaner component. Service and Repair
d. Disconnect the TR switch connector.
4. Loosen the TR switch.
a. Remove the clip and disconnect the selector cable from the manual shaft lever.
b. Loosen the TR switch installation bolts.
5. Adjust the TR switch.
a. Verify that the manual shaft is in the N position.
b. Adjust the resistance between TR switch terminals B and C to 713-787 ohms.
c. Tighten the TR switch installation bolts.
Tightening torque
- 8-11 Nm {82-112 kgf-cm, 71-97 in-lbf}
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:
- 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.
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