Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 31
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–79
ES
(e) Switch the ECM from normal mode to check mode using
the tester (See page
).
(f)
Drive the vehicle for more than 10 minutes.
(g) Read DTCs using the tester.
OK:
No DTC output.
OK
NG
(a) Remove the cylinder head cover (See page
or
).
(b) Turn the crankshaft pulley, and align its groove with the
timing mark "0" of the timing chain cover.
(c) Check that the timing marks of the camshaft timing gears
are aligned with the timing marks of the bearing cap as
shown in the illustration.
If not, turn the crankshaft 1 revolution (360
°), then align
the marks as above.
OK:
Timing marks on camshaft timing gears are aligned
as shown in the illustration.
(d) Reinstall the cylinder head cover (See page
).
NG
OK
(a) Remove the OCV.
(b) Measure the resistance between the terminals of the
OCV.
Standard Resistance
(c) Apply the positive battery voltage to terminal 1 and
negative battery voltage to terminal 2. Check the valve
operation.
OK:
Valve moves quickly.
(d) Reinstall the OCV.
END
4
CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN)
RH Bank
Timing Marks
Timing Marks
Timing Marks
LH Bank
G036290E05
ADJUST VALVE TIMING
5
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV)
Valve Moves
A097066E06
Tester Connections
Specified Conditions
1 - 2
6.9 to 7.9
Ω at 20°C (68°F)
ES–80
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
NG
OK
OK:
Filter is not clogged.
NG
OK
NEXT
(a) Connect an intelligent tester to the DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Clear DTCs (See page
(d) Start the engine and warm it up.
(e) Switch the ECM from normal mode to check mode using
the tester (See page
).
(f)
Drive the vehicle for more than 10 minutes.
(g) Confirm that no DTC is set using the tester.
OK:
No DTC output.
HINT:
DTC P0011, P0012, P0021 or P0022 is output when
foreign objects in engine oil are caught in some parts of
the system. These codes will stay registered even if the
system returns to normal after a short time. These
foreign objects are then captured by the oil filter, thus
eliminating the source of the problem.
OK
NG
REPLACE CAMSHAFT TIMING OIL
CONTROL VALVE ASSEMBLY (See page
)
6
INSPECT OIL CONTROL VALVE FILTER
CLEAN OIL CONTROL VALVE FILTER
7
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY
8
CHECK WHETHER DTC OUTPUT RECURS
SYSTEM OK
REPLACE ECM (See page
)
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–81
ES
DESCRIPTION
Refer to DTC P0335 (See page
MONITOR DESCRIPTION
The ECM optimizes the valve timing by using the VVT (Variable Valve Timing) system to control the intake
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 regulates the oil
pressure supplied to the VVT controller. The VVT controller can advance or retard the intake camshaft.
The ECM calibrates the intake valve timing by setting the intake camshaft to the most retarded angle while
the engine is idling. The ECM closes the OCV to retard the cam. The ECM stores this value as the VVT
learning value. When the difference between the target and actual intake valve timings is 5
°CA
(Crankshaft Angle) or less, the ECM stores it.
If the VVT learning value matches the following conditions, the ECM determines the existence of a
malfunction in the VVT system, and sets the DTC.
•
VVT learning value: Less than 22.5
°CA, or more than 45.2°CA.
•
Above condition continues for 18 seconds or more.
This DTC indicates that the intake camshaft has been installed toward the crankshaft at an incorrect
angle, caused by factors such as the timing chain having jumped a tooth.
This monitor begins to run after the engine has idled for 5 minutes.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
DTC
P0016
Crankshaft Position - Camshaft Position Corre-
lation (Bank 1 Sensor A)
DTC
P0018
Crankshaft Position - Camshaft Position Corre-
lation (Bank 2 Sensor A)
DTC No.
DTC Detection Conditions
Trouble Areas
P0016
Deviations in crankshaft and camshaft position sensor 1
signals (2 trip detection logic)
•
Mechanical system (Timing chain has jumped tooth or
chain stretched)
•
ECM
P0018
Deviations in crankshaft and camshaft position sensor 2
signals (2 trip detection logic)
Related DTCs
P0016: Camshaft Timing Misalignment at idling
Required Sensors/Components (Main)
VVT actuator
Required Sensors/Components (Related)
Camshaft position sensor, Crankshaft position sensor
Frequency of Operation
Once per driving cycle
Duration
Less than 1 minute
MIL Operation
2 driving cycles
Sequence of Operation
None
Monitor runs whenever following DTCs not present
P0011 (VVT system 1 - advance)
P0012 (VVT system 1 - retard)
P0021 (VVT system 2 - advance)
P0022 (VVT system 2 - retard)
P0115 - P0118 (ECT sensor)
Engine RPM
500 to 1,000 rpm
ES–82
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
TYPICAL MALFUNCTION THRESHOLDS
WIRING DIAGRAM
Refer to DTC P0335 (See page
).
Refer to DTC P0340 (See page
).
INSPECTION PROCEDURE
HINT:
Read freeze frame data using an intelligent tester. 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.
NG
OK
One of following conditions is met
-
VVT learning value at maximum retarded valve timing (Bank 1)
Less than 22.5
°CA (crankshaft angle)
VVT learning value at maximum retarded valve timing (Bank 2)
Less than 22.5
°CA (crankshaft angle)
VVT learning value at maximum retarded valve timing (Bank 1)
More than 45.2
°CA (crankshaft angle)
VVT learning value at maximum retarded valve timing (Bank 2)
More than 45.2
°CA (crankshaft angle)
1
CHECK VALVE TIMING (CHECK FOR LOOSE AND A JUMPED TOOTH OF TIMING CHAIN)
(See page
ADJUST VALVE TIMING (REPAIR OR
REPLACE TIMING CHAIN)
REPLACE ECM (See page
)
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