Dtc
P0010 Camshaft position "a" actuator circuit (bank 1)
Description
The variable valve timing (vvt) system includes the ecm, ocv and vvt controller. The ecm sends a target duty-cycle control signal to the ocv. This control signal regulates the oil pressure supplied to the vvt controller. Camshaft timing control is performed according to engine operating conditions such as the intake air volume, throttle valve position and engine coolant temperature. The ecm controls the ocv, based on the signals transmitted by several sensors. The vvt controller regulates the intake camshaft angle using oil pressure through the ocv. As a result, the relative positions of the camshaft and crankshaft are optimized, the engine torque and fuel economy improve, and the exhaust emissions decrease under overall driving conditions. The ecm detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control. This is how the target intake valve timing is verified by the ecm.
Hint:
This dtc relates to the oil control valve (ocv).
Monitor description
The ecm optimizes the valve timing using the vvt system to control the intake camshaft. The vvt system includes the ecm, the ocv and the vvt controller. The ecm sends a target duty-cycle control signal to the ocv. This control signal regulates the oil pressure supplied to the vvt controller. The vvt controller can advance or retard the intake camshaft.
After the ecm sends the target duty-cycle control signal to the ocv, the ecm monitors the ocv current to establish an actual duty-cycle. The ecm determines the existence of a malfunction and sets the dtc when the actual duty-cycle ratio varies from the target duty-cycle ratio.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Component operating range
Wiring diagram
Inspection procedure
Hint:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
Ok
Standard resistance: 6.9 To 7.9 ٠at 20°c (68°f)
Standard resistance (check for open)
Standard resistance (check for short)
Control module communication bus off
Description
Inspection procedure
The skid control ecu inputs the signals from the ecm, steering angle sensor,
and yaw rate and
acceleration sensor via can communication system.
Check harness and connector (momentary interruption)
Using the data list of the intelligent test ...
Reassembly
Install cooler (solar sensor) thermistor
(for automatic air conditioning system)
Install automatic light control sensor
(for automatic light control system)
Install front passenger airbag assembly
(see page rs-351)
Install no. 2 Instrument panel register
assembly
Install no. 1 Ins ...
Tire pressure warning ecu
Components
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove glove compartment door
assembly (see page i ...