Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / ABS with EBD system / Open circuit in stop light switch
circuit / Circuit description
Toyota Corolla (E120): Circuit description
Wiring diagram
Other materials:
Front suspension arm sub–assy lower no.1 Lh
Replacement
Hint: components:
1. Remove front wheel
2. Disconnect front stabilizer link assy lh (lh (a/t) position)
3. Disconnect front stabilizer link assy rh (lh (a/t) position)
Hint:
remove the rh side by the same procedures as the lh side.
4. Separate front suspension arm sub–assy lowe ...
Circuit description
Refer to dtc p0120
Dtc no.
Dtc detection condition
Trouble area
P0121
The following condition is met 4 times. After the vehicle speed
has exceeded 19 mph (30 km/h) once, the throttle position
sensor output value is out of normal range when the throttle
...
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 ...