OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P2749

Intermediate Shaft Speed Sensor C Circuit

The third intermediate shaft speed sensor returns no usable signal. Used on transmissions with multiple intermediate planetary stages.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 49

Possible causes

  • Open sensor element or broken signal wire high
  • Corroded sensor connector medium

Inspection / repair

  • Difficulty: medium
  • DIY: shop recommended
  • Estimated cost: 180–1200 €
  • Estimated time: 1–4 h
  • Component: intermediate shaft speed sensor c
  • Component: wiring harness
  • MIL / check engine light

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication