Toyota Celica 2005 Repair Manual page 705

DI−506
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
S
page DI−545) is output with DTC P0442 or P0456 (See page DI−524), 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
S
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
S
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 (2ZZ−GE)
11
EA1
R−B
7
EA1
BR
V7 VSV
(Pressure
Switching Valve)
19
1
IN
B−W
V4 VSV
(Canister Closed Valve)
1
B−W
V5 VSV
(EVAP)
2
B−W
GR
W−B
Battery
704
18
E10
R−B
21
E9
L−B
28
E10
BR
10
2
E9
II2
G−O
G−O
12
E12
2
V−W
11
E12
1
G−Y
8
E9
EB
ECM
VC
PTNK
E2
4
TBP
CCV
EVP
MREL
A09128