Test Point 20

Fault, DTC 53 Test Point 20

Kick-down switch
Short to ground

Possible causes, elimination, notes

Fault effect:
No kick-down.

NOTE: The function of the kick-down switch can be tested with the Porsche System Tester 2 (Input signals/Kick-down).

1. Test function of the switch with the tester.

NOTE: As the accelerator pedal box must not be opened, the complete box must be replaced if the kick-down switch is defective.

2. Check wire from control module connector pin 18 to the kick-down switch for short to ground.

Nominal value:
Accelerator pedal in idle position (kick-down switch open) = Infinite Ohms.

Accelerator pedal to the stop (kick-down) = 0... 5 Ohms.