Gear Signal

Warm engine to normal operating temperature. On Celica models, place pattern select switch in NORMAL (released position). Pattern select switch is located near shift lever.
On all models, depress OD switch, mounted on shift lever, to the ON position. Locate check connector in engine compartment. See Figure-2. Connect voltmeter between terminals TT and E1 of check connector. See Figure and Figure .
Road test the vehicle with the shift lever in the "D" position and with vehicle speed greater than 6 MPH. Voltage should increase as specified in accordance with transmission gear position. See the GEAR SIGNAL VOLTAGES table.
If voltages are as specified, electronic control system is operating correctly. If voltages are not as specified, system must be checked.

GEAR SIGNAL VOLTAGES