Subaru Impreza 2003 Service Manual page 3078

AMBIENT SENSOR
INSTRUMENTATION/DRIVER INFO
8. Ambient Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Disconnect the ambient sensor connector.
3) Remove the ambient sensor (A) from radiator
lower panel.
(A)
IDI00078
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
Measure the ambient sensor resistance.
2 1
IDI-00009
Terminal Resistance
1 and 2 2.2 kΩ/25°C (77°F)
If NG, replace the ambient sensor.
IDI-22