Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Idle signal circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Inspect terminal voltage(idl)
- Remove the cruise control ecu assy with connector still connected.
- disconnect the ecm connector.
- turn the ignition switch to on.
- measure voltage between terminal 13 (idl) of cruise control
ecu assy connector and body ground when the
throttle valve is fully closed and fully opened.
Ok:
2 Check harness and connector(between cruise control ecu assy and ecm)
- Check for open and short circuit in harness and connector between cruise control ecu assy and ecm
Check and replace cruise control ecu assy
Other materials:
Using the rear view monitor system
■ Screen description
1 Vehicle width guide lines
The line indicates a guide path when the vehicle is being backed straight up.
The displayed width is wider than the actual vehicle width.
2 Vehicle center guide lines
These lines indicate the estimated vehicle center on the ground.
3 Dis ...
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 ...
Circuit description
The variable valve timing (vvt) system includes the ecm, the oil control
valve (ocv) and the vvt controller.
The ecm sends a target ”duty–cycle” control signal to the ocv. This control
signal, applied to the ocv,
regulates the oil pressure supplied to the vvt controller. Camshaft timin ...