Toyota Corolla (E120): Circuit description

Hint:

Hint

: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    Engine rear oil seal
    Replacement 1. Remove manual transaxle assy (m/t transaxle) 2. Remove automatic transaxle assy (a/t transaxle) 3. Remove clutch cover assy (m/t transaxle)  remove the 6 bolts and clutch cover. 4. Remove clutch disc assy (m/t transaxle) 5. Remove flywheel sub–assy (m/t transaxle ...

    Inspection
    1. Inspect sliding roof limit switch Inspect the sliding roof limit switch continuity. Standard: If the continuity is not as specified, replace the switch. 2. Inspect sliding roof drive gear sub–assy Connect the positive (+) lead from the battery to terminal 2 and the ne ...

    Terminals of ecu
    Oscilloscope wave (*1) Hint: terminal: od – gnd gauge set: 5 v / div, 50 ms / div condition: during cruise control driving o/d switch on. ...