Toyota 2GR-FE Manual page 291

WIRING DIAGRAM
EFI No. 3
Battery
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
READ VALUE OF MASS AIR FLOW METER (MAF)
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
+B
3
EFI Relay
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Turn the tester on.
(d) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DATA LIST / PRIMARY / MAF.
(e) Read the values displayed on the tester.
C2 MAF Meter
VG
5
E2G
4
EFI MAIN
FL MAIN
ES–135
ECM
72
VG
C55
73
C55 E2G
44
A55 MREL
ES
A117876E02