Isuzu 2000 Trooper Workshop Manual page 142

Chart 2: Ambient Sensor
Step
1 Disconnect ambient sensor connector. (No.C–86)
Is performance of the ambient sensor normal? (Refer
to the later section on "Individual inspection")
2 Connect the ambient sensor connector.
Is resistance between the harness side connector
No.I33–2 and No.I33–11 normal?
3 Repair an open circuit between terminal No.I33–2 and
No.C86–1 or No.I33–11 and No.C86–2.
Is the action complete?
4 Replace the auto air conditioner control unit.
Is the action complete?
HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–113
Action Value(s) Yes
— Go to Step 2
Refer to the
later section
on "Individual
inspection" Go to Step 4
— Verify repair
— Verify repair
D08RY00140
No
Replace the
ambient
sensor
Go to Step 3
—
—