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Transmission Safety Fault:
Fault codes 17090, P0706, and 001798 indicate the Multitronic gearbox cannot correctly identify the gear selector position. This often results in PRNDS flashing, limp mode, or no drive.
What Do Fault Codes 17090 / P0706 / 001798 Mean?
On Audi CVT Multitronic transmissions, these fault codes relate to the Transmission Range / Gear Selector Sensor. The gearbox control unit detects an implausible or incorrect signal from the selector mechanism and disables normal operation to protect the transmission.
Common Causes
- Failed or misaligned gear selector range sensor
- Worn selector mechanism inside the Multitronic unit
- Internal wiring or signal plausibility faults
- Transmission Control Unit (TCU) adaptation errors
- Moisture ingress or connector corrosion
Typical Symptoms
- PRNDS flashing continuously
- Car will not select drive or reverse
- Gear position not matching shifter position
- Limp mode or restricted operation
- 17090 / P0706 / 001798 stored in fault memory
Our Audi Multitronic Solution
These faults are frequently misdiagnosed as full gearbox failure. We carry out selector calibration checks, live-range data testing, wiring integrity inspection, and TCU diagnostics. In many cases, the issue can be resolved through repair and recalibration rather than replacing the gearbox.
PRNDS Flashing or Gear Selection Issues?
Speak directly to an Audi Multitronic specialist.
📞 Call 07779 836677