ST–36
2GR-FE STARTING – SMART KEY SYSTEM
ST
DESCRIPTION
This DTC is output when there is a problem in the IG1D output circuit, which is from the inside of the main
body ECU to the IG1 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).
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester to the DLC3.
DTC B2272 Ignition 1 Monitor Malfunction
DTC No. DTC Detection Condition Trouble Area
B2272
IG1 relay actuation circuit inside main body ECU or
other related circuit is malfunctioning
• Main body ECU
•IG1 relay
• Wire harness or connector
1
READ VALUE OF INTELLIGENT TESTER
Main Body ECU
IG1D
39
1
1
3
10
IF
5
2
E7
IA
From Battery
II
IG1 Relay
Instrument Panel J/B
To Each System
GAUGE No. 1
ECU IG No. 1
ECU IG No. 2
A/C No. 2
WIP
WASH
S-HTR
B137972E01
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