Toyota Celica 2005 Repair Manual page 791

DI−592
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 ETCS fuse.
Engine Room R/B No.1
OK
2 Check voltage between terminal +BM of ECM connector and body ground.
A19521
NG
2005 CELICA (RM1131U)
DIAGNOSTICS
ETCS
A19257
+BM
A19629
− ENGINE (2ZZ−GE)
PREPARATION:
Remove the ETCS fuse from the engine room R/B No.1.
CHECK:
Check the continuity of the ETCS fuse.
OK:
Continuity
NG Check for short in all harness and components
connected to ETCS fuse.
PREPARATION:
Remove the glove compartment door (See page SF−78).
CHECK:
Measure the voltage between terminal +BM of the ECM con-
nector and body ground.
OK:
Voltage: 9 to 14 V
OK Check for intermittent problems
(See page DI−295).
790