Toyota Celica 2005 Repair Manual page 678

WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
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.
READ VALUE OF HAND−HELD TESTER OR OBD II SCAN TOOL
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(a) Connect the hand−held tester or the OBD II scan tool to the DLC3.
(b) Start the engine and push the hand−held tester or the OBD II scan tool main switch ON.
(c) Select the menu "DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / ENGINE SPD."
The engine speed can be confirmed in DATA LIST using the hand−held tester or OBD II scan tool. If
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there are no NE signals from the crankshaft position sensor despite running the engine, the engine
speed will be indicated as zero. If the voltage output of the crankshaft position sensor is insufficient,
the engine speed will be indicated as lower RPM (than the actual RPM).
2005 CELICA (RM1131U)
DIAGNOSTICS
C4
Crankshaft Position Sensor
2
C1 Camshaft Position Sensor
A
BR A
A
ED
J1
J/C
− ENGINE (2ZZ−GE)
1
W
2
1
B−W
L
(Shielded)
677
ECM
27
O
NE+
E10
34
W
NE−
E10
(Shielded)
27
G22+
E12
DI−479
A18421