#
IMMOBILIZER SYSTEM DESCRIPTION [WITHOUT ADVANCED KEYLESS SYSTEM]

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## Verification Method Between Key (Transponder) and PCM

## On-Board Diagnostic Function

### Self-malfunction diagnosis system

  • If the immobilizer system has a malfunction, the security light starts flashing and indicates a fault code when the ignition switch is turned to the ON position. In this case, check the DTC using the SST (WDS) to verify the malfunction.

DTC table

DTC | Description
--- | ---
Security light | Security light flashing pattern | WDS
11 |  | B1681 | coil antenna signal is not received.
12 |  | B2103 | coil antenna failure.
13 |  | B1600 | ID number signal is not received.
B2431 | Transponder programming failure.
14 |  | B1602 | PCM received invalid format of ID number from transponder.
15 |  | B1601 | PCM received incorrect ID number from key (transponder).
21 |  | B1213 | Number of valid keys is below minimum.
Not illuminated | - | B1342 | PCM is defective.

### PID/data monitor and record

  • The PID/data monitoring item for the immobilizer system is shown in the table below.

PID/data monitor table

PID name (Description) | Unit | Specification | PCM terminal
--- | --- | --- | ---
NUMKEYS (Number of key stored in module) | - | Number of registered keys: 0-8 | -