SECURITY LIGHT: 13, DTC: B1600/P1260/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND START SYSTEM)]

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SECURITY LIGHT: 13

The key ID number data cannot be read

DTC: B1600/P1260/P1260:00

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

•  Keyless control module 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/P1260:00 displayed?

Yes

Perform the DTC inspection for “SECURITY LIGHT: 13, M-MDS: B2431/P1260/P1260:00”.

(See SECURITY LIGHT: 13, DTC: B1600/P1260/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND START SYSTEM)].)

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 M-MDS, register an additional key.
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)

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

•  Verify the DTC using the M-MDS.

•  Is B1600/P1260/P1260:00 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 [ADVANCED KEYLESS ENTRY AND START SYSTEM].)

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 M-MDS.

•  Is B1600/P1260/P1260:00 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 [ADVANCED KEYLESS ENTRY AND START SYSTEM].)

6

INSPECT KEYLESS CONTROL MODULE

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

•  Is B1600/P1260/P1260:00 displayed again?

Yes

Replace the keyless control module and perform the resetting procedure for the immobilizer system when replacing the keyless control module.

(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND START SYSTEM].)

(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)

No

DTC troubleshooting completed.

SECURITY LIGHT: 13	The key ID number data cannot be read
DTC: B1600/P1260/P1260:00	The key ID number data cannot be read
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 • Keyless control module 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
POSSIBLE CAUSE

STEP	INSPECTION		ACTION
1	VERIFY DTC • Is B1600/P1260 displayed?	Yes	Go to Step 3.
1	VERIFY DTC • Is B1600/P1260 displayed?	No	Go to the next step.
2	VERIFY DTC • Is B2431/P1260/P1260:00 displayed?	Yes	Perform the DTC inspection for “SECURITY LIGHT: 13, M-MDS: B2431/P1260/P1260:00”. (See SECURITY LIGHT: 13, DTC: B1600/P1260/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND START SYSTEM)].)
2	VERIFY DTC • Is B2431/P1260/P1260:00 displayed?	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.
3		No	Go to the next step.
4	VERIFY WHETHER MALFUNCTION IS IN KEY OR COIL ANTENNA • Using the M-MDS, register an additional key. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].) • Using the registered key, turn the ignition switch to the ON position. • Verify the DTC using the M-MDS. • Is B1600/P1260/P1260:00 displayed again?	Yes	Replace the coil antenna, then go to Step 6. (See COIL ANTENNA REMOVAL/INSTALLATION.)
4		No	Dispose of the malfunctioning key. Register a new key if necessary. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
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 M-MDS. • Is B1600/P1260/P1260:00 displayed again?	Yes	Replace the coil antenna, then go to the next step. (See COIL ANTENNA REMOVAL/INSTALLATION.)
5		No	Dispose of the malfunctioning key. Register a new key if necessary. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
6	INSPECT KEYLESS CONTROL MODULE • Using the registered key, turn the ignition switch to the ON position. • Is B1600/P1260/P1260:00 displayed again?	Yes	Replace the keyless control module and perform the resetting procedure for the immobilizer system when replacing the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND START SYSTEM].) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
6		No	DTC troubleshooting completed.