P2858 – ‘B’ Clutch Pressure Clutch Performance

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P2858 Possible Causes

  • High clutch and rear brake solenoid valve
  • Control valve assembly

How to Fix Code P2858

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P2858 Meaning

The clutch pressure control solenoid is controlled by signals from switches and sensors. Thus, the clutch pressure is adjusted to be appropriate for the engine load condition and the vehicle’s driving state. It becomes possible to finely control the clutch hydraulic pressure with high precision, achieving a smoother shifting characteristic.

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