Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 104
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–371
ES
(a) Check the EVAP pressure in step 4/5.
Result
*
: These DTCs are already present in the ECM when the
vehicle arrives and are confirmed in step 1.
B
C
A
9
PERFORM EVAP SYSTEM CHECK (STEP 4/5)
Purge VSV
Vent Valve
Leak Detection
Pump
EVAP Pressure
Positive
Negative
First Reference
Pressure
Steps
Purge VSV Stuck Closed
ON
ON
ON
Time
(Reference)
OK
4/5
10
seconds
ON: Open
ON: Closed
OFF: Closed
OFF: Vent
A106741E05
DTCs
*
Test Results
Suspected Trouble Areas
Proceed To
-
EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-
g) or more within 10 seconds of proceeding from
step 3/5 to step 4/5
Not yet determined
A
P0441
EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-
g) or more within 10 seconds of proceeding from
step 3/5 to step 4/5
Problems in EVAP hose between
purge VSV and intake manifold
B
P0441
Variation in EVAP pressure less than 0.3 kPa-g (2.25
mmHg-g) for 10 seconds, after proceeding from
step 3/5 to step 4/5
Purge VSV stuck closed
C
Go to step 15
Go to step 12
ES–372
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Check the EVAP pressure in step 5/5.
(b) Compare the EVAP pressure in step 3/5 and the second
reference pressure (step 5/5).
Result
*
: These DTCs are already present in the ECM when the
vehicle arrives and are confirmed in step 1.
A
B
10
PERFORM EVAP SYSTEM CHECK (STEP 5/5)
Purge VSV
Vent Valve
Leak Detection
Pump
EVAP Pressure
Positive
Negative
First Reference
Pressure
Steps
Time
(Reference)
Gross Leak
Small Leak
No Leak
60
seconds
[Second
Reference
Pressure] x 0.2
5/5
ON
ON
ON
ON: Open
OFF: Closed
ON: Closed
OFF: Vent
[Second
Reference
Pressure]
A106735E09
DTCs
*
Test Results
Suspected Trouble Areas
Proceed To
-
EVAP pressure (step 3/5) lower than
second reference pressure (step 5/5)
Not yet determined (no leakage from
EVAP system)
A
P0441 and P0455
EVAP pressure (step 3/5) higher than
[second reference pressure (step 5/5)
x 0.2]
•
Purge VSV stuck open
•
EVAP gross leak
B
P0456
EVAP pressure (step 3/5) higher than
second reference pressure (step 5/5)
EVAP small leak
B
Go to step 36
Go to step 12
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–373
ES
(a) Check the EVAP pressure in step 3/5.
Result
*
: These DTCs are already present in the ECM when the
vehicle arrives and are confirmed in step 1.
HINT:
The first reference pressure is the value determined in
step 2/5.
A
B
11
PERFORM EVAP SYSTEM CHECK (STEP 3/5)
ON
ON
ON
Leak Detection Pump
Stuck OFF
Reference Orifice
High-flow
Within 15 minutes
3/5
2/5
Purge VSV
Vent Valve
Leak Detection
Pump
EVAP Pressure
Positive
Negative
First Reference
Pressure
Steps
Time
(Reference)
ON: Open
ON: Closed
OFF: Closed
OFF: Vent
A106742E04
DTCs
*
Test Results
Suspected Trouble Areas
Proceed To
P043F
EVAP pressure less than [reference pressure]
measured at 2/5
Reference orifice high-flow
A
P2401
EVAP pressure almost same as [reference
pressure] measured at 2/5
Leak detection pump stuck OFF
B
Go to step 30
Go to step 23
ES–374
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(a) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II/ ACTIVE TEST / EVAP VSV.
(b) Disconnect the hose (connected to the canister) from the
purge VSV.
(c) Start the engine.
(d) Using the tester, turn off the purge VSV (EVAP VSV:
OFF).
(e) Use your finger to confirm that the purge VSV has no
suction.
(f)
Using the tester, turn on the purge VSV (EVAP VSV:
ON).
(g) Use your finger to confirm that the purge VSV has
suction.
Result
(h) Reconnect the hose.
B
C
A
(a) Check that the fuel cap is correctly installed and confirm
the fuel cap meets OEM specifications.
(b) Confirm that the fuel cap is tightened until a few click
sounds are heard.
HINT:
If an EVAP tester is available, check the fuel cap using
the tester.
(1) Remove the fuel cap and install it onto a fuel cap
adaptor.
(2) Connect an EVAP tester pump hose to the adaptor,
and pressurize the cap to 3.2 to 3.7 kPa (24 to 28
mmHg) using an EVAP tester pump.
(3) Seal the adaptor and wait for 2 minutes.
(4) Check the pressure. If the pressure is 2 kPa (15
mmHg) or more, the fuel cap is normal.
Result
12
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (PURGE VSV)
Hose
Purge VSV
G035659E02
Test Results
Suspected Trouble Areas
Proceed To
No suction when purge VSV turned OFF, and
suction applied when turned ON
Purge VSV normal
A
Suction applied when purge VSV turned OFF
Purge VSV stuck open
B
No suction when purge VSV turned ON
•
Purge VSV stuck closed
•
Problems with EVAP hose between purge VSV
and intake air surge tank
C
Go to step 14
Go to step 15
13
CHECK FUEL CAP ASSEMBLY
Test Results
Suspected Trouble Areas
Proceed To
Fuel cap correctly installed
-
A
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