AutoCodes – Honda – P0847 Honda

P0847 Honda Code - 3rd Clutch Transmission Fluid Pressure Switch Circuit Short or Stuck ON

Quick Answer

The 3rd clutch transmission fluid pressure switch is installed in the hydraulic pressure circuit to the 3rd clutch. Common causes include Faulty 3rd Clutch Transmission Fluid Pressure Switch, 3rd Clutch Transmission Fluid Pressure Switch harness is open or shorted, 3rd Clutch Transmission Fluid Pressure Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0847 Honda indicates 3rd Clutch Transmission Fluid Pressure Switch Circuit Short or Stuck ON.
Common causes: Common causes include Faulty 3rd Clutch Transmission Fluid Pressure Switch, 3rd Clutch Transmission Fluid Pressure Switch harness is open or shorted, 3rd Clutch Transmission Fluid Pressure Switch circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 48,590

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 03, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
Comments
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Code P0847 Honda Description

The 3rd clutch transmission fluid pressure switch is installed in the hydraulic pressure circuit to the 3rd clutch. When hydraulic pressure is supplied to the 3rd clutch, the switch is turned ON. When hydraulic pressure is not supplied to the 3rd clutch, the switch is turned OFF. The signal from the 3rd clutch transmission fluid pressure switch is input to the Powertrain Control Module (PCM). The PCM detects the hydraulic pressure supply conditions at the gear change to 3rd gear (2nd → 3rd, 4th → 3rd) to reduce the shock that occurs at the gear change. If the 3rd clutch transmission fluid pressure switch is ON while driving, and the speed ratio of the countershaft to the mainshaft is other than the 3rd ratio (the ratio is Neutral or 4th), the PCM detects a 3rd clutch transmission fluid pressure switch failure, and a DTC is stored.

OBDII Code P0847 Honda - 3rd Clutch Transmission Fluid Pressure Switch Circuit Short or Stuck ON - AutoCodes.com — P0847 Honda Code - 3rd Clutch Transmission Fluid Pressure Switch Circuit Short or Stuck ON

What does this mean?

What are the Possible Causes of the DTC P0847 Honda?

Faulty 3rd Clutch Transmission Fluid Pressure Switch
3rd Clutch Transmission Fluid Pressure Switch harness is open or shorted
3rd Clutch Transmission Fluid Pressure Switch circuit poor electrical connection

How to Fix the DTC P0847 Honda?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0847 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.