Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GV7Z |
Model Year Start: 2020 |
Model: GR Corolla |
Prod Date Range: [01/2019 - 09/2022] |
Title: THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): B2796,B2798; No Communication in Immobiliser System; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022] |
DTC
|
B2796
|
No Communication in Immobiliser System
|
DTC
|
B2798
|
Communication Malfunction No. 2
|
DESCRIPTION
This DTC is stored when a door control transmitter assembly is inserted into the ignition key cylinder but no communication occurs between the door control transmitter assembly and transponder key ECU assembly.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Note
|
B2796
|
No Communication in Immobiliser System
|
The key ID code cannot be transmitted to the transponder key ECU assembly (1 trip detection logic*).
|
-
Door control transmitter assembly
-
Wire harness or connector
|
DTC Output Confirmation Operation:
-
Insert the door control transmitter assembly into the ignition key cylinder.
|
B2798
|
Communication Malfunction No. 2
|
Key ID code identification cannot be completed within the specified time (1 trip detection logic*).
|
-
Door control transmitter assembly
-
Wire harness or connector
|
DTC Output Confirmation Operation:
-
Insert the door control transmitter assembly into the ignition key cylinder.
|
-
*: Only output while a malfunction is present.
Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected
|
Fail-safe Operation when Malfunction Detected
|
Engine cannot be started
|
-
|
Related Data List and Active Test
DTC No.
|
Data List and Active Test
|
B2796
|
-
|
B2798
|
-
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
1.
|
CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - TRANSPONDER KEY COIL)
|
(a) Disconnect the I67 transponder key ECU assembly connector.
(b) Disconnect the I64 transponder key coil connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I67-2 (ANT1) - I64-1 (ANT1)
|
Always
|
Below 1 Ω
|
I67-3 (ANT2) - I64-5 (ANT2)
|
Always
|
Below 1 Ω
|
I67-2 (ANT1) or I64-1 (ANT1) - Other terminals and body ground
|
Always
|
10 kΩ or higher
|
I67-3 (ANT2) or I64-5 (ANT2) - Other terminals and body ground
|
Always
|
10 kΩ or higher
|
OK |
|
REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|