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EG048-04
Title:
REPAIR MANUAL SUPPLEMENT:
LEV II EVAP SYSTEM CHECK -
DTC P0441, P0442, P0446, P0451,
P0452, P0453, P0455 & P0456
Models:
’03 -- ’04 4Runner & Tundra, ’04 Camry, Highlander,
Sienna & Solara
Technical Service
BULLETIN
November 12, 2004
This TSB provides detailed instructions for a new LEV II EVAP System Check function
using the Diagnostic Tester.
The LEV II System Check allows the Diagnostic Tester to display the fuel tank vapor
pressure as the EVAP VSV and the CCV are operated in a specific six--step pattern.
Problems with the EVAP system are quickly isolated by observing the change in vapor
pressure during each step.
Once the vehicle condition is corrected, the LEV II System Check can also be used to
confirm the repair before the vehicle is returned to the customer.
The inspection procedure using the LEV II System Check (LEV II SYS CHECK) is
described in this bulletin. This function is available using a Diagnostic Tester with version
11.0a software (or newer).
S2003 -- 2004 model year 4Runner vehicles equipped with 2UZ--FE and
1GR--FE engines.
S2003 -- 2004 model year Tundra vehicles equipped with 5VZ--FE and
2UZ--FE engines.
S2004 model year Camry vehicles equipped with 2AZ--FE, 1MZ--FE and
3MZ--FE engines.
S2004 model year Highlander and Sienna vehicles equipped with 3MZ--FE engine.
S2004 model year Solara vehicles equipped with 2AZ--FE and 3MZ--FE engines.
SECTION TITLE PAGE
ALEV II SYS CHECK Description 3
BDTC Check 4
CLEV II SYS CHECK (Diagnostic Tester System Test) 5
DAir Inlet Restriction Inspection 13
EEVAP VSV Stuck--Open Inspection 16
FLeak Check or No Vacuum Drawn on System Inspection 17
GCCV Diagnostics 22
HEVAP VSV Diagnostics 25
IEVAP System Description 30
JEVAP System DTC Descriptions 33
KEVAP Monitor Description 35
LOBD II EVAP Monitor Specifications 39
OP CODE DESCRIPTION TIME OFP T1 T2
N/A Not Applicable to Warranty – – – –
ENGINE
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