Toyota Celica 2005 Repair Manual page 753

DI−554
WIRING DIAGRAM
Combination Meter
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand−held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine 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.
1 Check operation of speedometer.
CHECK:
Drive the vehicle and check if the operation of the speedmeter in the combination meter is normal.
HINT:
The vehicle speed sensor is operating normally if the speedometer display is normal.
OK
2005 CELICA (RM1131U)
DIAGNOSTICS
Instrument Panel J/B
9 5
C12 IM
W−R
− ENGINE (2ZZ−GE)
4
IB
NG Check speedometer circuit. See combination
meter troubleshooting (See page BE−2).
752
17
E8 SPD
W−R
ECM
A09122