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DTC › ZF4 ZF4 / FF0053

AU2_SHORT_GND; Output shaft speed sensor supply voltage; Short circuit to ground

â–¶ How to fix

Switch off ignition; Disconnect electronics; Connect transmission test cable; Measure resistance of the supply line against ground / housing. (Pin 21 against KL31 /housing) Nominal value: > 10 Mohm; Check cable TCU -> transmission; If you find deviations from the nominal value, check wiring and component;

What you'll see

No driver-visible symptom recorded.

System reaction

No system-reaction text recorded.

Diagnostic depth

Detection

The AU2 voltage is lower than 4 V; Normal mode

Possible cause

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