Toyota Corolla (E120): Diagnosis circuit

Wiring diagram

Circuit description

Other materials:

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 ...

Radio broadcast cannot be received (bad reception)
Inspection procedure 1 Check if radio auto–search functions properly Check if the radio auto–search functions properly.  Perform the auto–search of the radio and check that it functions normally. Standard: the radio auto–search functions properly. 2 Check optional ...

Replacement
Hint: components: 1. Place front wheels facing straight ahead 2. Remove front wheels 3. Remove engine under cover lh 4. Remove engine under cover rh 5. Remove exhaust pipe 6. Drain transaxle oil 7. Remove hood sub–assy 8. Remove cylinder head cover no.2 9. Remove air cleaner assy 10. R ...