OBD Guide

P17EB

Ratio Monitoring Shift 6-5

P17EB is an OBD-II diagnostic trouble code meaning: Ratio Monitoring Shift 6-5. Common causes: low transmission fluid level, atf contamination or degradation. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Hard shifts between 6th and 5th gear
  • Jerks when shifting gears
  • Extended switching interval
  • Transmission fluid overheating
  • Vibration appears when switching

Causes

  • Low transmission fluid level
  • ATF contamination or degradation
  • Problems with shift solenoids
  • Friction disc wear
  • Transmission control module malfunctions

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Carry out diagnostics of switching solenoids
  3. Perform gearbox adaptation
  4. Check the hydraulic pressure in the system
  5. Diagnose the transmission control module

Related codes

FAQ

What does the P17EB code mean?

P17EB is an OBD-II diagnostic trouble code that indicates: Ratio Monitoring Shift 6-5

What causes a P17EB error code?

The most common causes of P17EB include: Low transmission fluid level; ATF contamination or degradation; Problems with shift solenoids; Friction disc wear.

How do I fix a P17EB diagnostic trouble code?

To fix P17EB: Check the level and condition of the transmission fluid. Carry out diagnostics of switching solenoids. Perform gearbox adaptation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P17EB?

Do not drive — repair immediately

How much does it cost to fix P17EB?

The estimated repair cost for P17EB is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat