Manufacturer Codes: 36

Fault, DTC 36 Test Point 13

Speed sensor
Signal implausible

Possible causes, elimination, notes

Fault effect:
Reduced driving program.

NOTE: The ratio of transmission output speed/engine speed is monitored.

1. Check sensor for the transmission speed on Tiptronic control module connector pins 14 and 42 with an ohmmeter.

Nominal value: 0.80... 1.2 kOhms.

2. Check wiring from the control module connector pin 42 (or 14) to the 16-pole transmission connector pin 10 (or 1) for open circuit, short circuit to ground and short to B+.
3. Check shield on control module connector pin 15.
4. Test sensor on transmission socket pins 10 and 1 with an ohmmeter.

Nominal value: 0.80... 1.2 kOhms.

NOTE: The ATF pan must be removed before the sensor can be replaced.

5. If items 1... 4 are OK and no other faults are stored, there is a mechanical/hydraulic fault in the transmission (e.g. ATF level not OK, defective converter, slipping clutches or brakes).