SECURITY LIGHT: 13, DTC B1600/P1260

id0902e4903300

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 malfunction

•  Keyless unit 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 USING WDS OR EQUIVALENT

•  Is B1600/P1260 displayed?

Yes

Go to Step 3.

No

Go to the next step.

2

VERIFY DTC USING WDS OR EQUIVALENT

•  Is B2431/P1260 displayed?

Yes

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

•  Using the WDS or equivalent, register an additional key.
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

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

•  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, then go to Step 6.

(See COIL REMOVAL/INSTALLATION.)

No

•  Dispose of the malfunctioning key.

•  Register a new key if necessary.
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

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

5

VERIFY WHETHER MALFUNCTION IS IN KEY OR COIL

•  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, then go to the next step.

(See COIL REMOVAL/INSTALLATION.)

No

•  Dispose of the malfunctioning key.

•  Register a new key if necessary.
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

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

6

INSPECT KEYLESS UNIT

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

―  Is B1600/P1260 displayed again?

Yes

Replace the keyless unit and perform procedures for when replacing the keyless unit only.

(See KEYLESS UNIT REMOVAL/INSTALLATION.)

(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

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

No

DTC troubleshooting completed.

SECURITY LIGHT: 13	The key ID number data cannot be read.
DTC: B1600/P1260	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 malfunction • Keyless unit 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 USING WDS OR EQUIVALENT • Is B1600/P1260 displayed?	Yes	Go to Step 3.
1		No	Go to the next step.
2	VERIFY DTC USING WDS OR EQUIVALENT • Is B2431/P1260 displayed?	Yes	SECURITY LIGHT: 13, WDS or equivalent: B2431/P1260. (See SECURITY LIGHT: 13, DTC B2431/P1260.)
2		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 • Using the WDS or equivalent, register an additional key. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM].) • 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, then go to Step 6. (See COIL REMOVAL/INSTALLATION.)
4		No	• Dispose of the malfunctioning key. • Register a new key if necessary. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM].)
5	VERIFY WHETHER MALFUNCTION IS IN KEY OR COIL • 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, then go to the next step. (See COIL REMOVAL/INSTALLATION.)
5		No	• Dispose of the malfunctioning key. • Register a new key if necessary. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM].)
6	INSPECT KEYLESS UNIT • Using the registered key, turn the ignition switch to the ON position. ― Is B1600/P1260 displayed again?	Yes	Replace the keyless unit and perform procedures for when replacing the keyless unit only. (See KEYLESS UNIT REMOVAL/INSTALLATION.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM].)
6		No	DTC troubleshooting completed.