OBD Guide

P0799

Pressure Control Solenoid C Intermittent

P0799 is an OBD-II diagnostic trouble code meaning: Pressure Control Solenoid C Intermittent. Common causes: solenoid circuit problems, worn pressure control solenoid. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect gear shifting
  • Slipping when switching
  • Hard gear shifts
  • Check Engine light comes on
  • Reduced transmission efficiency

Causes

  • Solenoid circuit problems
  • Worn pressure control solenoid
  • Poor contact in solenoid connector
  • Transmission fluid contamination
  • Transmission Control Module (TCM) Problems

How to Fix

  1. Check the condition of the transmission fluid
  2. Diagnose the electrical circuit of the solenoid
  3. Check connectors and wiring harness
  4. Replace pressure control solenoid C if necessary
  5. Clear errors and take a test drive

Related codes

Error P0799 by Vehicle Brand

FAQ

What does the P0799 code mean?

P0799 is an OBD-II diagnostic trouble code that indicates: Pressure Control Solenoid C Intermittent

What causes a P0799 error code?

The most common causes of P0799 include: Solenoid circuit problems; Worn pressure control solenoid; Poor contact in solenoid connector; Transmission fluid contamination.

How do I fix a P0799 diagnostic trouble code?

To fix P0799: Check the condition of the transmission fluid. Diagnose the electrical circuit of the solenoid. Check connectors and wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0799?

Limited driving only, diagnose soon

How much does it cost to fix P0799?

The estimated repair cost for P0799 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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