Toyota 2GR-FE Manual page 493

INSPECTION PROCEDURE
HINT:
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data
can be helpful in determining whether the vehicle was running or stopped, whether the engine was
warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of
a malfunction (See page ES-45).
1
CHECK FUSE (ETCS FUSE)
ETCS
OK
2
INSPECT ECM (+BM VOLTAGE)
Wire Harness Side:
A55
ECM Connector
+BM
NG
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Remove the ETCS fuse from the engine room R/B.
(b) Measure the resistance of the ETCS fuse.
Engine Room
Standard resistance:
Relay Block
(c) Reinstall the ETCS fuse.
NG
A135037E01
(a) Disconnect the A55 ECM connector.
(b) Measure the voltage according to the value(s) in the
table below.
Standard voltage
(c) Reconnect the ECM connector.
OK
A115671E46
Below 1 Ω
REPLACE ETCS FUSE
Tester Connection
+BM (A55-3) - Body ground
CHECK FOR INTERMITTENT PROBLEMS
ES–337
ES
Specified Condition
9 to 14 V