P0847 fault code: what it means

P0847: Honda automatic: short in the 3rd clutch fluid pressure switch circuit, or the switch is stuck on. The gearbox may hold one gear in failsafe.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

1. faulty 3rd clutch pressure switch
2. water in switch wiring or connector
3. low or dirty ATF

P0847 by make

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Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.