Toyota Corolla (E120): Proportioning valve assy

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Interior
SRS airbags Floor mats Front seats Head restraints Seat belts Console box Inside lock buttons Cup holders Rear seats Rear seat heater switches* *: If equipped ■Ceiling Inside rear view mirror Sun visors Vanity mirrors Vanity lights* Interior lights/personal lights Moon roof sw ...

How to proceed with troubleshooting
1 Vehicle brought to workshop 2 Customer problem analysis 3 Problem symptom confirmation 4 Circuit inspection 5 Repair or replace 6 Confirmation test 7 End Customer problem analysis check ...

Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. If the malfunction indicator lamp comes on The OBD system determines that a problem exists somewhere in the emission cont ...