TCM E39 / P0722 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

P0722 00

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage must be between 10.2 - 15.5 V.

Selector lever in position D.

Engine speed over 400 rpm.

TCM not in Limp Home

The following diagnostic trouble codes may not be generated:

P0974, P0973

P0966, P0967, P0778

P0970, P0971, P0798

P2716, P2720, P2721

P2727, P2729, P2730

P0962, P0963, P0748

P2761, P2763, P2764

P0657, P0715, P0720

Fault criteria:

Control module receives no value from output speed sensor but receives value from the input speed sensor.

System reaction to a fault:

If the DTC remains during several test cycles:

Limp home

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:

Vehicle Speed (Output RPM)

(See also description of readings/activations in diagnostic tool)