P0722

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK GEARBOX warning lamp on. TCM in Limp-Home mode.

P0722

Fault symptoms

CHECK GEARBOX warning lamp on.

TCM in Limp-Home mode.

Conditions

No signal from the output speed sensor when:

•	Car speed is higher than 4 km/h.

•	Gear selector position sensor in position D, 3, 2 or 1.

•	The transmission fluid temperature is above 20°C.

Diagnostic help

A reading of the output speed can be obtained with the diagnostic instrument.

-	Select " Data Display / Output Control (New)" and " Vehicle Speed (Output RPM)"

Compare the diagnostic instrument reading with the speedometer when driving the car.

Check the wiring

Jiggle the wiring harness at several points and in different directions to reveal intermittent breaks and short circuits in the various leads. Observe the multimeter, test lamp or diagnostic instrument while carrying out this check.