Toyota FJ Cruiser (GSJ 10, 15 series). Manual — part 29
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–71
ES
P2420
Evaporative Emission System
Switching Valve Control Circuit
High
- Canister pump module (Reference orifice, leak
detection pump, vent valve)
- Connector/wire harness (Canister pump
module - ECM)
- ECM
Comes on
DTC stored
P2610
ECM / PCM Internal Engine Off
Timer Performance
- ECM
Comes on
DTC stored
P2A00
A/F Sensor Circuit Slow
Response (Bank 1 Sensor 1)
- Open or short in A/F sensor (bank 1 sensor 1)
circuit
- A/F sensor
- A/F sensor heater
- ECM
Comes on
DTC stored
P2A03
A/F Sensor Circuit Slow
Response (Bank 2 Sensor 1)
- Open or short in A/F sensor (bank 2 sensor 1)
circuit
- A/F sensor
- A/F sensor heater
- ECM
Comes on
DTC stored
DTC No.
Detection Item
Trouble Areas
MIL
Memory
See page
ES–72
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
HINT:
This DTC relates to the Oil Control Valve (OCV).
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.
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.
DTC
P0010
Camshaft Position "A" Actuator Circuit (Bank
1)
DTC
P0020
Camshaft Position "A" Actuator Circuit (Bank
2)
DTC No.
DTC Detection Conditions
Trouble Areas
P0010
Open or short in OCV (bank 1) circuit
(1 trip detection logic)
•
OCV (bank 1) circuit
•
OCV (bank 1)
•
ECM
P0020
Open or short in OCV (bank 2) circuit
(1 trip detection logic)
•
OCV (bank 2) circuit
•
OCV (bank 2)
•
ECM
Crankshaft Position Sensor
Mass Air Flow Meter
Throttle Position Sensor
Engine Coolant
Temperature Sensor
Vehicle Speed Signal
Camshaft Position Sensor
ECM
Target Valve Timing
Correction
Actual Valve Timing
Duty-cycle
Camshaft Timing
Oil Control Valve
(OCV)
Feedback
A117755E02
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–73
ES
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
Related DTCs
P0010: VVT OCV (bank 1) open/short
P0020: VVT OCV (bank 2) open/short
Required Sensors/Components (Main)
VVT OCV (Variable Valve Timing Oil Control Valve)
Required Sensors/Components (Related)
-
Frequency of Operation
Continuous
Duration
1 second
MIL Operation
Immediate
Sequence of Operation
None
Monitor runs whenever following DTCs not present
-
Engine
Running
OCV duty-cycle
3% or less
100%
OCV duty-cycle
4 to 100 % when engine running
ES–74
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
WIRING DIAGRAM
INSPECTION PROCEDURE
(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
OK
1
CHECK FOR DTC
B12
OCV (Bank 1)
B26
OCV (Bank 2)
ECM
OC1+
OC1-
OC2+
OC2-
1
2
1
2
B3
B3
17
16
B3
B3
14
15
A133454E01
CHECK FOR INTERMITTENT PROBLEMS
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