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.
Transmission Position Sensor/Switch: Service and Repair
2010 Honda Civic L4-1.8L CNGSECTION Service and Repair
Transmission Range Switch Replacement
1. Raise the vehicle on a lift, or apply the parking brake, block the rear wheels, and raise the front of the vehicle. Make sure it is securely supported.
2. Move the shift lever to N.
3. Remove the transmission range switch cover.
4. Remove the transmission range switch.
5. Make sure the selector control shaft is in the N position. If necessary, move the shift lever to N from P.
NOTE: Do not use the selector control shaft to adjust the shift position. If the selector control shaft tips are squeezed together it will cause a faulty signal or position due to play between the selector control shaft and switch.
6. Align the cutouts (A) on the rotary-frame with the neutral positioning cutouts (B) on the transmission range switch (C), then put a 2.0 mm (0.08 in) feeler gauge blade (D) in the cutouts to hold the switch in the N position.
NOTE: Be sure to use a 2.0 mm (0.08 in) blade or equivalent to hold the switch in the N position.
7. Install the transmission range switch (A) gently on the selector control shaft (B) while holding it in the N position with the 2.0 mm (0.08 in) blade (C).
8. Tighten the bolts on the transmission range switch while you continue holding the N position. Do not move the transmission range switch when tightening the bolts. Remove the feeler gauge.
9. Check the connectors for rust, dirt, or oil, and clean or repair if necessary, then connect the connector securely.
10. Turn the ignition switch to ON (II). Move the shift lever through all positions, and verify the transmission range switch matches with the A/T gear position indicator.
11. Check that the engine will start in P and N, and will not start in any other shift lever position.
12. Check that the back-up lights come on when the shift lever is in R.
13. Allow the front wheels to rotate freely, then start the engine, and check the shift lever operation.
14. Install the transmission range switch cover.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.