Transmission Does Not Shift

Transmission does not shift

Input shaft (mainshaft) speed sensor defective

Output shaft (countershaft) speed sensor defective

Modulator valve defective

Engine output low

Notes

Check for a stored DTC, and check for loose connectors.

Notes

Inspect the sensor O-rings for wear and damage.

Notes

Check the line pressure A/T Pressure Test.

Notes

Check the modulator valve in the main valve body for free movement, and check the valve spring for wear and damage.

Notes

Check the fuel pressure Testing and Inspection.

Notes

Check for exhaust restriction.

Notes

Check for intake restriction.

Notes

Check the VTEC rocker arm.