XT 4WD F4-1781cc 1.8L SOHC (1990)
Throttle Position Sensor: Testing and Inspection
Throttle Sensor Schematic
A faulty throttle sensor will set code 31 in the on-board diagnostic system. Refer to the schematic diagrams and test the sensor and switch with the
diagnostic charts.
Wire color code identification:
L:
Blue
B:
Black
Y:
Yellow
G:
Green
R:
Red
W: White
Br: Brown
Lg: Light green
Gr: Gray