Legacy Sedan 4WD F4-2.2L SOHC (1992)
Throttle Position Sensor: Testing and Inspection
TPS Circuit
A faulty throttle sensor will set code 31 in the on-board diagnostic system. Refer to the schematic diagram and test the sensor with the diagnostic chart.
Wire color code identification:
L:
Blue
B:
Black
Y:
Yellow
G:
Green
R:
Red
W: White
Br: Brown
Lg: Light green
Gr: Gray
Throttle Sensor Diagnostic Chart
THROTTLE SENSOR DIAGNOSTIC CHART
CHECK ECU VOLTAGE
With ignition "ON," measure voltage between ECU connector terminals and ground as follows:
