GR_CM In DRIVE MODE: Notes
This OSC function is used to test the transmission shift functions.
The OSC functions for the GR_CM parameter allows the technician to choose the following options:
- 1 - PCM selects 1st gear.
- 2 - PCM selects 2nd gear.
- 3 - PCM selects 3rd gear.
- 4 - PCM selects 4th gear.
OSC "GR_CM" Mode operates ONLY when:
- the digital TR sensor is operational and no digital TR sensor DTCs are present.
- the vehicle speed sensor is operational and no VSS sensor DTCs are present.
- the engine is ON.
- the TCC is OFF.
- the transmission range selector lever is in O/D.
- the vehicle speed is greater than 3.2 km/h (2 mph).