What causes P1739 on a Honda?

Failed 3rd clutch pressure switch stuck open or closed Open or short in the pressure switch signal wire to the PCM Low 3rd clutch hydraulic pressure from internal wear Blocked pressure switch feed passage in the valve body

How do I fix P1739 on a Honda?

Monitor 3rd clutch pressure switch state on an HDS scan tool during the 2-3 shift Bench test the switch for correct open and closed states under pressure Inspect wiring between the switch and PCM for damage or poor terminals Replace the 3rd clutch pressure switch if it fails to change state Clear the DTC and verify the 2-3 shift on a road test

P1739 Problem in 3rd Clutch Pressure Switch Circuit

Q: What does P1739 mean on a Honda?

P1739 — Problem in 3rd Clutch Pressure Switch Circuit. Applies to Accord, Odyssey, Civic with automatic transmission.

Category: Powertrain - Transmission
Severity: Check Engine Light
Applies to: Accord, Odyssey, Civic with automatic transmission

What does P1739 mean on a Honda?

P1739 — Problem in 3rd Clutch Pressure Switch Circuit. This Honda-enhanced code applies to Accord, Odyssey, Civic with automatic transmission.

Common causes of P1739

Failed 3rd clutch pressure switch stuck open or closed
Open or short in the pressure switch signal wire to the PCM
Low 3rd clutch hydraulic pressure from internal wear
Blocked pressure switch feed passage in the valve body

How to fix P1739

Monitor 3rd clutch pressure switch state on an HDS scan tool during the 2-3 shift
Bench test the switch for correct open and closed states under pressure
Inspect wiring between the switch and PCM for damage or poor terminals
Replace the 3rd clutch pressure switch if it fails to change state
Clear the DTC and verify the 2-3 shift on a road test