Wire Harness Or Connector - Toyota 2GR-FE Manual

DTC B2273
DESCRIPTION
This DTC is output when there is a problem in the IG2D output circuit, which is from the inside of the main
body ECU to the IG2 relay.
HINT:
When the main body ECU is replaced with a new one and the negative (-) battery terminal is connected,
the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the
power source mode that was selected when the battery was removed is restored.
After the main body ECU is replaced, perform the registration procedures for the engine immobiliser
system (See page EI-8).
DTC No.
IG2 relay actuation circuit inside main body ECU or
B2273
other related circuit is malfunctioning
WIRING DIAGRAM
Instrument Panel J/B
INSPECTION PROCEDURE
1
READ VALUE OF INTELLIGENT TESTER
2GR-FE STARTING – SMART KEY SYSTEM
Ignition 2 Monitor Malfunction
DTC Detection Condition
Engine Room R/B
IG2 Relay
2 1
1
3 5
1
GAUGE No. 2
7
I1
IGN
INJ
(a) Connect the intelligent tester to the DLC3.
• Main body ECU
• IG2 relay
•

Wire harness or connector

1
From Battery
1
To Each System
ST–41
Trouble Area
Main Body ECU
11
E6 IG2D
B137973E01
ST