OBD Guide

P2873

Clutch B Pressure Engagement Too High

P2873 is an OBD-II diagnostic trouble code meaning: Clutch B Pressure Engagement Too High. Common causes: clutch pressure control solenoid malfunction, contamination or blockage of hydraulic passages. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Hard gear shifting
  • Delays when shifting gears
  • Car jerking when shifting
  • Check Engine Light Illuminates
  • Switching to emergency mode of the gearbox

Causes

  • Clutch pressure control solenoid malfunction
  • Contamination or blockage of hydraulic passages
  • Mechanical damage to clutch B
  • Hydraulic pump problems
  • Errors in TCM software

How to Fix

  1. Diagnostics of the hydraulic system of the gearbox
  2. Checking and replacing pressure control solenoids
  3. Flushing the hydraulic system
  4. Checking the mechanical condition of clutch B
  5. Updating TCM software if necessary

Related codes

Error P2873 by Vehicle Brand

FAQ

What does the P2873 code mean?

P2873 is an OBD-II diagnostic trouble code that indicates: Clutch B Pressure Engagement Too High

What causes a P2873 error code?

The most common causes of P2873 include: Clutch pressure control solenoid malfunction; Contamination or blockage of hydraulic passages; Mechanical damage to clutch B; Hydraulic pump problems.

How do I fix a P2873 diagnostic trouble code?

To fix P2873: Diagnostics of the hydraulic system of the gearbox. Checking and replacing pressure control solenoids. Flushing the hydraulic system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2873?

Limited driving only, diagnose soon

How much does it cost to fix P2873?

The estimated repair cost for P2873 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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