Toyota Corolla (E120): Circuit description

The sensor check circuit detects abnormalities in the speed sensor signal which cannot be detected with the dtc check.

Connecting terminals ts and cg of the dlc3 starts the check.

Wiring diagram

Inspection procedure

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    Follow the correction procedures. (vehicles with a smart key system and with a drive monitor display)
    After taking the specified steps to correct the suspected problem, check that the warning light turns off. ■SRS warning light This warning light system monitors the airbag sensor assembly, front impact sensors, side impact sensors (front door), side impact sensors (front), side impac ...

    Inspection procedure
    1 Inspect dlc3 terminal voltage Turn the ignition switch to on.  measure voltage between terminals 13 (tc) and 4 (cg) of dlc3. Ok: voltage: 10 – 16 v 2 Check harness and connector(between cruise control ecu assy and dlc3) Check for open and short circuit in harness ...

    Check mode procedure
    Hint: hand–held tester only: compared to the normal mode, the check mode has more sensing ability to detect malfunctions. Furthermore, the same diagnostic items which are detected in the normal mode can also be detected in the check mode. 1. Check mode procedure(using the hand–held tester) ...