Toyota Tundra (2015 year). Manual — part 1225
A
(b) Turn the ignition switch ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were
present when the DTC was stored
.
Result
FREEZE FRAME DATA ITEM FOR
DTC P1605
RESULT
SUSPECTED
AREA
PROCEED
TO
EVAP (Purge) VSV
Purge VSV
A
B
HINT:
If the purge VSV is stuck closed, air-fuel ratio compensation by the purge VSV is incorrectly adjusted, and
then the air-fuel ratio becomes lean and the engine may stall.
B
GO TO STEP 33
25.
PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP
CONTROL)
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch ON.
(d) Start the engine.
(e) Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap
Control.
(f) Operate the purge VSV and check the airflow.
OK:
ACTIVATE THE VSV FOR EVAP CONTROL
SPECIFIED CONDITION
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
A
OK
ACTIVATE THE VSV FOR EVAP CONTROL
SPECIFIED CONDITION
ON
Air flows
OFF
Air does not flow
Result
RESULT
PROCEED TO
NG
A
OK
B
HINT:
B
GO TO STEP 33
26.
INSPECT PURGE VSV
(a) Inspect the purge VSV
.
NG
REPLACE PURGE VSV
27.
CHECK TERMINAL VOLTAGE (PURGE VSV POWER SOURCE)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
(a) Disconnect the purge VSV connector.
(b) Turn the ignition switch ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
D29-1 - Body ground
ignition switch ON
11 to 14 V
Text in Illustration
*a
HINT:
REPAIR OR REPLACE HARNESS OR CONNECTOR
(PURGE VSV - INTEGRATION RELAY)
28.
CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)
(a) Check harness and connector, referring to EVAP System inspection procedure
.
HINT:
OK
NEXT
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
29.
CLEAR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch ON.
(c) Turn the Techstream on.
(d) Clear the DTCs
.
30.
READ VALUE USING TECHSTREAM (EVAP (Purge) VSV)
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature stabilizes.
HINT:
The A/C switch and all accessory switches should be off.
(c) Idle the engine for 15 minutes or more.
DATA LIST
SPECIFIED CONDITION
EVAP (Purge) VSV
Value other than 0% is displayed
Result
RESULT
PROCEED TO
Abnormal
A
Normal
B
B
CHECK FOR INTERMITTENT PROBLEMS
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
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