GEAR In DRIVE MODE

This OSC function is used to test the transaxle shift functions.

NOTE: When the technician commands 1st gear during OSC mode, engine braking is automatically activated for 1st gear. Be aware that normal transaxle operation does not use engine braking in 1st gear.

The OSC function for the GEAR parameter allows the technician to choose the following options:

1 - PCM selects first gear.
2 - PCM selects second gear.
3 - PCM selects third gear.
4 - PCM selects fourth gear.

OSC "GEAR" Mode operates ONLY when:

VSS and TR sensor are operational.
No VSS and TR sensor DTCs.
Engine "ON."
Transaxle range selector lever in O/D.
Vehicle speed is greater than 3 km/h (2 mph).
Gear selected is equal to or below maximum gear available (PID "GEARTOP").
Maximum vehicle speed for downshift into first gear is 40 km/h (25 mph).
Maximum vehicle speed for downshift into second gear is 97 km/h (60 mph).
Maximum vehicle speed for downshift into third gear is 204 km/h (127 mph).
Minimum vehicle speed for an upshift to fourth gear is 32 km/h (20 mph).

OSC Command Values:

1 - PCM selects first gear.
2 - PCM selects second gear.
3 - PCM selects third gear.
4 - PCM selects fourth gear.
XXX - cancels OSC sent value.
SEND - sends the values to PCM.