P1D99
Incorrect Gear Ratio Clutch 'B' Or 'E' Defective
P1D99 is an OBD-II diagnostic trouble code meaning: Incorrect Gear Ratio Clutch 'B' Or 'E' Defective. Common causes: worn or damaged clutch b/e clutches, low or contaminated transmission fluid. Estimated repair cost: $56–278.
Symptoms
- Shifting gears with jerks or jerks
- Delay when shifting gears
- Transition to emergency mode of operation of the gearbox
- Check Engine light comes on
- Reduced acceleration dynamics
Causes
- Worn or damaged clutch B/E clutches
- Low or contaminated transmission fluid
- Malfunction of clutch control solenoids
- Problems with the hydraulic clutch system
- Errors in the transmission control unit (TCM)
How to Fix
- Check the level and condition of the transmission fluid
- Scan the transmission for additional trouble codes
- Check the functionality of the clutch control solenoids
- Conduct diagnostics of the hydraulic clutch system
- If necessary, replace worn clutch discs
Related codes
FAQ
What does the P1D99 code mean?
P1D99 is an OBD-II diagnostic trouble code that indicates: Incorrect Gear Ratio Clutch 'B' Or 'E' Defective
What causes a P1D99 error code?
The most common causes of P1D99 include: Worn or damaged clutch B/E clutches; Low or contaminated transmission fluid; Malfunction of clutch control solenoids; Problems with the hydraulic clutch system.
How do I fix a P1D99 diagnostic trouble code?
To fix P1D99: Check the level and condition of the transmission fluid. Scan the transmission for additional trouble codes. Check the functionality of the clutch control solenoids. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1D99?
Limited driving only, diagnose soon
How much does it cost to fix P1D99?
The estimated repair cost for P1D99 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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