Operation CHARM: Car repair manuals for everyone.
Home >> Honda >> 2009 >> Civic L4-1.8L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Transmission Speed Sensor >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Transmission Speed Sensor: Service and Repair




A/T Input Shaft (Mainshaft) Speed Sensor Replacement

1. Remove the air cleaner assembly Service and Repair and the intake air duct.

2. Remove the harness clamp (A) from its bracket, and remove the air cleaner housing bracket (B).






3. Disconnect the input shaft (mainshaft) speed sensor connector, and remove the input shaft (mainshaft) speed sensor (A).

4. Install a new O-ring (B) on a new input shaft (mainshaft) speed sensor, then install the input shaft (mainshaft) speed sensor in the transmission housing.

5. Check the connector for rust, dirt, or oil, then connect the connector securely.

6. Install the air cleaner housing bracket, and install the harness clamp on its bracket.

7. Install the intake air duct and the air cleaner assembly. Service and Repair





pro multis · About Operation CHARM