Toyota Celica 2005 Repair Manual page 406

WIRING DIAGRAM
V6
Vapor Pressure Sensor
Engine Room J/B
EFI
EFI
Relay
3
NO. 2
5
1
2
EFI
INSPECTION PROCEDURE
HINT:
If DTC P0441 (Purge Flow), P0446 (CCV or pressure switching valve), P0451, P0452 or P0453 (See
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page DI−247) is output with DTC P0442 or P0456 (See page DI−225), first troubleshoot DTC P0441,
P0446, P0451, P0452 or P0453. If no malfunction is detected, troubleshoot DTC P0442 or P0456 next.
Read freeze frame data using the hand−held tester or the OBD II scan tool. Freeze frame data records
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the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can
help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air−fuel
ratio was lean or rich, as well as other data from the time when a malfunction occurred.
When the ENGINE RUN TIME in the freeze frame data is less than 200 seconds, carefully check the
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vapor pressure sensor.
2005 CELICA (RM1131U)
DIAGNOSTICS
8
3
II2
R
12
2
II2
L−B
4
1
II2
BR
Instrument Panel J/B
5
2F
IB
B−W
19
16
2C
15
2C
12
2F
7
2H
1
2A
B−R
FL MAIN
− ENGINE (1ZZ−FE)
11
EA1
R
7
EA1
BR
V7 VSV
(Pressure
Switching Valve)
19
1
IN
B−W
V4 VSV
(Canister Closed Valve)
B−W
1
V5 VSV
(EVAP)
2
B−W
L−B
W−B
Battery
405
2
E4
R
4
E2
L−B
18
E4
BR
23
10
2
E3
II2
G−O
G−O
17
E5
2 V−W
4
E4
1
G−O
21
E3
EB
DI−207
ECM
VC
PTNK
E2
TBP
CCV
EVP1
MREL
A09128