Toyota Corolla Repair Manual: Circuit description
Refer to dtc p0010
|
Dtc no. |
Dtc detection condition |
Trouble area |
| P0011 | Condition (a) or (b) continues after engine is warmed up and
engine speed at 550 to 4,000 rpm (problem of the advanced
ocv):
|
|
| P0012 | Condition (a) or (b) continues after engine is warmed up and
engine speed at 550 to 4,000 rpm (problem of the retarded
ocv):
|
Monitor description
The ecm optimizes the valve timing using the variable valve timing (vvt) system to control the intake valve camshaft. The 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. The vvt controller can advance or retard the intake valve camshaft.
Example: when a difference between the targeted and actual valve timing is more than 5 camshaft angle ”ca” and this condition continues for more than 4.5 Sec, and if the ocv is forcibly activated 63 times or more.
Advanced cam dtcs are subject to ”1 trip” detection logic.
Retarded cam dtcs are subject to ”2 trip” detection logic.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Wiring diagram
Refer to dtc p0010
Camshaft position ”a” –timing over
Dtc p0011 camshaft position ”a” –timing over–
advanced or system performance
(bank 1)
Dtc p0012 camshaft position ”a” –timing over–
retarded (bank 1) ...
Inspection procedure
Hint
Advanced timing over
(valve timing is out of specified range)
P0011
Retarded timing over
(valve timing is out of specified range)
P0012
If dtc p0011 or p0012 ...
Other materials:
Favorites list setting
Up to 15 contacts (maximum of 4 numbers per contact) can be registered in the
favorites list.
■ Registering the contacts in the favorites list
1 Select “Add Favorite”.
2 Select the desired contact to add to the favorites list.
Dimmed contacts are already stored as a favorite.
3 Check th ...
Warning lights
Warning lights inform the driver of malfunctions in the indicated vehicle’s systems.
*1: Vehicles without a smart key system:
These lights turn on when the engine switch is turned to the “ON” position to indicate
that a system check is being performed. They will turn off after the engine is ...
Circuit description
Refer to dtc p0130
Dtc no.
Dtc detecting condition
Trouble area
P0134
After engine is warmed up, heated oxygen sensor (bank 1
sensor 1) output does not indicate rich (greater than 0.45 V)
even once when conditions (a), (b), (c), (d) and (e) continue for
...