2003 - 2011 9-3 TCM Fault Code P1743-64 or P1743 Diagnostic Information via WIS

[FONT=Verdana]P1743 64
[/FONT]
[FONT=Verdana]Lock-up. Mechanical Fault.[/FONT]
[FONT=Verdana]Fault symptom[/FONT]
[FONT=Verdana]Message appears in display.[/FONT]
[FONT=Verdana]On-board diagnosis[/FONT]
[FONT=Verdana]Type of diagnosis:[/FONT]

Continuous

[FONT=Verdana]Enable criteria:[/FONT]

Engine running and not in limp home mode.

The following diagnostic trouble codes may not be generated:

Gearbox Input RPM

Output speed.

Gear selector position sensor

Gearbox Fluid Temperature Sensor

Battery Voltage. Too High.

Solenoid SLT

Engine RPM

Wheel speed fault

Pedal Position Sensor

Engine Torque

Solenoid S1

Solenoid S2

Solenoid S3

Solenoid S4

Solenoid S5

[FONT=Verdana]Fault criteria:[/FONT]

TCM registers rapid speed changes on the output shaft or TCM registers a difference greater than 100 rpm between input shaft speed and engine rpm.

[FONT=Verdana]System reaction to a fault:[/FONT]

Excluded Lock-Up function.

Poor shifting quality. Procedure to DIAG: Check: Oil level Oil grade Check that the sensors for input shaft speed and output shaft speed are correctly mounted on the gearbox Remove component: Speed sensor, input shaft, gearbox Speed sensor, output shaft, gearbox Check that the sensors for incoming rpm and outgoing rpm are free from dirt and are undamaged. IF all check out OK then you will be needing a Transmission.