P0010

1GR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0010: Camshaft Position "A" Actuator Circuit (Bank 1)

DTC P0010 - Camshaft Position "A" Actuator Circuit (Bank 1)

DTC P0020 - Camshaft Position "A" Actuator Circuit (Bank 2)

CAUTION / NOTICE / HINT

DESCRIPTION
HINT: This DTC relates to the Oil Control Valve (OCV).

This DTC is designed to detect opens or shorts in the camshaft oil control valve (OCV) circuit. If the OCV's duty-cycle is excessively high or low while the engine running, the ECM will illuminate the MIL and set the DTC.
The VVT (variable valve timing) system adjusts the intake valve timing to improve the driveability. The engine oil pressure turns the camshaft actuator to adjust the valve timing. The OCV is a solenoid valve and switches the engine oil line. The valve moves when the ECM applies the 12 volts to the solenoid. The ECM changes the energizing time to the solenoid (duty-cycle) in accordance with the camshaft position, crankshaft position, throttle position etc.









MONITOR DESCRIPTION

This DTC is designed to detect opens or shorts in the camshaft oil control valve (OCV) circuit. If the OCV's duty-cycle is excessively high or low while the engine running, the ECM will illuminate the MIL and set the DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





WIRING DIAGRAM





INSPECTION PROCEDURE
HINT: Read freeze frame data using a Techstream. Freeze frame data record 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.

PROCEDURE

1. CHECK FOR DTC
(a) Clear the DTCs after recording the freeze frame data and DTCs.
(b) Allow the engine to idle and check for DTCs.
(c) Check whether P0010 or P0020 is present.
OK:
P0010 or P0020 is present.
NG -- CHECK FOR INTERMITTENT PROBLEMS
OK -- Continue to next step.
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY




(a) Disconnect the OCV connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





(c) Reconnect the OCV connector.
NG -- REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (OCV - ECM)




(a) Disconnect the B3 ECM connector.
(b) Disconnect the B12 or B26 OCV connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance for Bank 1:






Standard Resistance for Bank 2:





(d) Reconnect the ECM connector.
(e) Reconnect the OCV connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE ECM