FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Throttle Body: Testing and Inspection

Throttle Body

INSPECTION

1. THROTTLE SENSOR INSPECTION (METHOD WITH CIRCUIT TESTER)
1. Remove the glove box lid assembly.
2. Turn the ignition switch to ON. (engine OFF)
3. Check the voltage between ECM connector terminals.










2. THROTTLE SENSOR INSPECTION (METHOD WITH SUBARU SELECT MONITOR)
1. Turn the ignition switch to ON. (engine OFF)
2. Read the throttle opening angle signal and voltage of throttle sensor using Subaru Select Monitor. Subaru Select Monitor






3. OTHER INSPECTIONS
1. Check that the throttle body has no deformation, cracks or other damages.
2. Check that the preheater hose has no cracks, damage or loose part.