Toyota 2GR-FE Manual page 907

DTC B2274
DESCRIPTION
This DTC is output when there is a problem in the ACCD output circuit, which is from the inside of the
main body ECU to the ACC 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.
ACC relay actuation circuit inside main body ECU or
B2274
other related circuit is malfunctioning
WIRING DIAGRAM
Instrument Panel J/B
10
IF
To Each System
INSPECTION PROCEDURE
1
READ VALUE OF INTELLIGENT TESTER
2GR-FE STARTING – SMART KEY SYSTEM
ACC Monitor Malfunction
DTC Detection Condition
ACC Relay
1
PWR OUTLET
3
ECU-ACC
RADIO No. 2
(a) Connect the intelligent tester to the DLC3.
Trouble Area
• Main body ECU
• ACC relay
• Wire harness or connector
3
2
II
1
5
IA
From Battery
ST–45
Main Body ECU
22
E7 ACCD
B137974E01
ST