Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000028K9U |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [11/2022 -
] |
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): B228B00; Battery Circuit or Ground Circuit Energization Malfunction; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 - ] |
DTC
|
B228B00
|
Battery Circuit or Ground Circuit Energization Malfunction
|
DESCRIPTION
This DTC is stored when there is a malfunction in the certification ECU (smart key ECU assembly) auxiliary battery power supply circuit or ground circuit.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Note
|
B228B00
|
Battery Circuit or Ground Circuit Energization Malfunction
|
A malfunction is detected in the certification ECU (smart key ECU assembly) auxiliary battery power supply circuit or ground circuit. (1-trip detection logic*)
|
-
AM2 fuse
-
Wire harness or connector
|
DTC Output Confirmation Operation:
|
-
*: Only detected while a malfunction is present.
Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected
|
Fail-safe Function when Malfunction Detected
|
The engine stopped while driving.
|
-
|
Related Data List and Active Test Items
DTC No.
|
Data List and Active Test
|
B228B00
|
-
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
1.
|
CHECK HARNESS AND CONNECTOR (POWER SOURCE)
|
Pre-procedure1
(a) Disconnect the I167 certification ECU (smart key ECU assembly) connector.
Procedure1
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
I167-6 (+B) - Body ground
|
Always
|
11 to 14 V
|
Post-procedure1
(c) None
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE
|
OK
|
|
|
2.
|
CHECK HARNESS AND CONNECTOR (GROUND)
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I167-29 (E) - Body ground
|
Always
|
Below 1 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE
|
|