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P0843 Honda Code - Transmission Fluid Pressure Switch 'A' 2nd Clutch Circuit High

- Code Popularity: 63,179 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0843 Honda?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty 2nd Clutch Transmission Fluid Pressure Switch
  • 2nd Clutch Transmission Fluid Pressure Switch harness or connectors
  • T2nd Clutch Transmission Fluid Pressure Switch circuit is open or shorted
  • Transmission internal mechanical problem
⚠ Does your Honda have Safety Recalls? → Check here

How to Fix the DTC P0843 Honda?

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

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0843 Honda code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0843 Honda Description

Transmission fluid pressure switch A (2nd clutch) is installed in the hydraulic pressure circuit to the 2nd clutch. When hydraulic pressure is supplied to the 2nd clutch, the switch is turned ON. When hydraulic pressure is not supplied to the 2nd clutch, the switch is turned OFF. The signal from transmission fluid pressure switch A (2nd clutch) is input to the Powertrain Control Module (PCM). The PCM detects the hydraulic pressure supply conditions at the gear change to 2nd gear (1st to 2nd, 3rd to 2nd) to reduce the shock that occurs at the gear change. If transmission fluid pressure switch A (2nd clutch) is OFF while driving the vehicle with the rotation speed ratio of the input/output pulses is that of 2nd gear, the PCM detects a transmission fluid pressure switch A (2nd clutch) failure and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0843 Honda - Transmission Fluid Pressure Switch 'A' 2nd Clutch Circuit High - AutoCodes.com
P0843 Honda Code - Transmission Fluid Pressure Switch 'A' 2nd Clutch Circuit High

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Code P0843 Honda comments

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