P0843 HONDA - Transmission Fluid Pressure Switch 'A' 2nd Clutch Circuit High
P0843 HONDA Possible 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
How is the P0843 HONDA code repair?Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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What is the cost to diagnose the P0843 HONDA code
Labor: 1.0The cost to diagnose the P0843 HONDA code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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- Engine Light ON (or Service Engine Soon Warning Light)
P0843 HONDA MeaningTransmission 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).
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