Manufacturer Codes: 62

Fault, DTC's 55, 62 Test Point 8

Speed signal front right/left Signal implausible

Possible causes, elimination, notes

Fault effect:
No manual program.

Upshifting is not prevented during braking. No downshifting during braking. Substitute value for transverse acceleration.

NOTE: The wheel speeds can be checked with Porsche System Tester 2 (Actual values/Speed signal FR/FL). To do this, raise the vehicle and spin the right or left front wheel by hand.

1. Check wheel speed with the tester.
2. Read out fault memory of the ABS/TC control module and remedy the fault according to the ABS test plan.
3. Check wiring from the Tiptronic control module connector pin 38 (or 39) to the ABS/TC control module connector pin 25 (or 26) for open circuit, short to ground and short to B+.