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TCM EDC16 / P0731 6F

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

  P0731 6F


Gear 1, Faulty Gear Ratio in Overrun.

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Engine running and not in limp home mode.
Exceptions:

Oil temperature < 20 º C
Driver not driving in 1st gear.
Normal exceptions for shifting error DTC:

Selector lever not in position D.
During shifting.
Battery voltage < 10.5 Volt.
Malfunction in one of the following systems:

Input speed.
Output speed.
Gear selector position sensor
Gearbox Fluid Temperature Sensor
Engine speed.
ABS vehicle speed.
Accelerator pedal position.

Fault criteria:

Gear ratio measured by the control module varies more than 20 % from the expected value.
During engine braking.

System reaction to a fault:

Limp home

Diagnostic help

Diagnosis regards:

Locating a mechanical fault.