Toyota Corolla (E120): Circuit description

This relay supplies power to each abs solenoid. After the ignition switch is turned on, if the initial check is ok, the relay goes on

Wiring diagram

Wiring diagram

Inspection procedure

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    Replacement
    1. Remove console box sub–assy rear 2. Remove parking brake lever sub–assy Disconnect the parking brake switch connector from the parking brake switch.  remove the lock nut and adjusting nut from the parking brake cable assy no.1. Remove the 2 bolts. Usin ...

    Inspection procedure
    Hint: if dtc p0441 (purge flow), p0446 (vsv for ccv or vsv for pressure switching valve), p0451, p0452 or p0453  is output with dtc p0442 or p0456 , first troubleshoot dtc p0441, p0446, p0451, p0452 or p0453. If no malfunction is detected, troubleshoot dtc p0442 or p0456 next. ...

    Circuit description
    Refer to dtc p0130 Hint: the ecm provides a pulse width modulated control circuit to adjust current through the heater. The heated oxygen sensor heater circuit uses a relay on the b+ side of the circuit. Monitor description The ecm uses the heated oxygen sensor information to regulate t ...