OBD Guide
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P1D97

Incorrect Gear Ratio Clutch 'A' Or 'D' Defective

P1D97 is an OBD-II diagnostic trouble code meaning: Incorrect Gear Ratio Clutch 'A' Or 'D' Defective. Common causes: clutch wear, low transmission fluid level. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–556 (est.)

Symptoms

  • Jerks when shifting gears
  • Clutch slipping
  • Switching delays
  • Increased noise from the gearbox
  • Power Loss

Causes

  • Clutch wear
  • Low transmission fluid level
  • Malfunction of the hydraulic clutch unit
  • Problems with shaft rotation sensors
  • Malfunction of the transmission control unit

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose the condition of the clutch and shift mechanisms
  3. Check the operation of the hydraulic clutch unit
  4. Test the input and output shaft speed sensors
  5. Update transmission control unit software

Related codes

P1D98P1D99P1D96

FAQ

What does the P1D97 code mean?

P1D97 is an OBD-II diagnostic trouble code that indicates: Incorrect Gear Ratio Clutch 'A' Or 'D' Defective

What causes a P1D97 error code?

The most common causes of P1D97 include: Clutch wear; Low transmission fluid level; Malfunction of the hydraulic clutch unit; Problems with shaft rotation sensors.

How do I fix a P1D97 diagnostic trouble code?

To fix P1D97: Check the level and condition of the transmission fluid. Diagnose the condition of the clutch and shift mechanisms. Check the operation of the hydraulic clutch unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D97?

Do not drive — repair immediately

How much does it cost to fix P1D97?

The estimated repair cost for P1D97 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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