SECURITY LIGHT 13, DTC B1600/P1260

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SECURITY LIGHT 13, DTC B1600/P1260

B3E090201077W08

SECURITY LIGHT: 13 | The key ID number data cannot be read.
DTC: B1600/P1260
DETECTION CONDITION | • The key ID number data cannot be read.

POSSIBLE CAUSE

• No transponder in the key
• Transponder malfunction (Key ID number is not output)
• Coil antenna malfunction
• Instrument cluster malfunction
• Any of the following items are touching or near the key head.

  - Spare keys
  - Keys for other vehicles equipped with an immobilizer system
  - Any metallic object
  - Any electronic device, or any credit or other cards with magnetic strips

## Diagnostic Procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY DTC • Is B1600/P1260 displayed? | Yes | Go to Step 3.
No | Go to the next step.
2 | VERIFY DTC • Is B2431/P1260 displayed? | Yes | Perform the DTC inspection for "SECURITY LIGHT: 13, WDS or equivalent: B2431/P1260". (See SECURITY LIGHT 13, DTC B2431/P1260.)
No | Go to the next step.
3 | VERIFY WHETHER KEY IS VALID OR NOT • Are there any keys with which the engine can be started, other than the key that is a cause of the displayed DTC? | Yes | Go to Step 5.
No | Go to the next step.

4

VERIFY WHETHER MALFUNCTION IS IN KEY OR COIL ANTENNA
• Using the WDS or equivalent, register an additional key.
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)
• Using the registered key, turn the ignition switch to the ON position.
• Verify the DTC using the WDS or equivalent.

  - Is B1600/P1260 displayed again?

Yes

Replace the coil antenna, then go to Step 6.
(See COIL ANTENNA REMOVAL/INSTALLATION.)

No | • Dispose of the malfunctioning key. • Register a new key if necessary. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

5

VERIFY WHETHER MALFUNCTION IS IN KEY OR COIL ANTENNA
• Using another valid key, turn the ignition switch to the ON position.
• Verify the DTC Using the WDS or equivalent.

  - Is B1600/P1260 displayed again?

Yes

Replace the coil antenna, then go to the next step.
(See COIL ANTENNA REMOVAL/INSTALLATION.)

No | • Dispose of the malfunctioning key. • Register a new key if necessary. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

6

INSPECT INSTRUMENT CLUSTER
• Using the registered key, turn the ignition switch to the ON position.

  - Is B1600/P1260 displayed again?

Yes

Replace the instrument cluster and perform the resetting procedure for the immobilizer system when replacing the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

No | DTC troubleshooting completed.