Toyota Corolla Cross: Diagnostic Trouble Code Chart
Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Immobiliser System (w/o Smart Key System) / Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Immobiliser System (w/o Smart Key System)|
DTC No. | Detection Item |
Link |
|---|---|---|
| B2780 |
Push Switch / Key Unlock Warning Switch Malfunction |
|
|
B2784 | Antenna Coil Open / Short |
|
|
B2793 | Transponder Chip Malfunction |
|
|
B2794 | Unmatched Encryption Code |
|
|
B2795 | Unmatched Key Code |
|
|
B2796 | No Communication in Immobiliser System |
|
|
B2797 | Communication Malfunction No. 1 |
|
|
B2798 | Communication Malfunction No. 2 |
|
|
B279986 | Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid |
|
|
B279A12 | Engine Immobiliser System Circuit Short to Battery |
|
|
B279C95 | Engine Immobiliser System Incorrect Assembly |
|
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Push Switch / Key Unlock Warning Switch Malfunction (B2780)
DESCRIPTION This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is on even when the ignition switch is ON.
DTC No. Detection Item
Antenna Coil Open / Short (B2784)
DESCRIPTION When an open or short circuit is detected in the antenna coil built into the transponder key coil, the transponder key ECU assembly stores this DTC.
DTC No. Detection Item
DTC
Transponder Chip Malfunction (B2793,B2797)
DESCRIPTION
DTC B2793 is stored when a malfunction is found in the door control transmitter assembly during key ID code registration or a key ID code is not registered normally. Replace the door
SEE MORE:
Inspection
INSPECTION
PROCEDURE
1. INSPECT BRAKE CYLINDER AND PISTON
(a) Check the rear disc brake cylinder bore and rear disc brake piston
for rust and scoring. If necessary, replace the rear disc brake cylinder and rear
disc brake piston.
2. INSPECT PAD LINING THICKNESS
(a) Using a ruler,
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE THEFT DETERRENT SYSTEM
NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized.
Be sure to make a note of the current settings before customizing.
When troubleshooting a function, first make sure tha
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