SECURITY LIGHT: 13, DTC B1600/P1260

BHE090201077W08

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
• Is B1600/P1260 displayed?
Yes
Go to Step 3.
No
Go to the next step.
2
VERIFY DTC USING WDS
• Is B2431/P1260 displayed?
Yes
SECURITY LIGHT: 13, WDS: 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, register an additional key.
• Using the registered key, turn the ignition switch to the ON position.
• Verify the DTC using the WDS.
– Is B1600/P1260 displayed again?
Yes
Replace the coil, then go to Step 6.
No
• Dispose of the malfunctioning key.
• Register a new key if necessary.
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.
– Is B1600/P1260 displayed again?
Yes
Replace the coil, then go to the next step.
No
• Dispose of the malfunctioning key.
• Register a new key if necessary.
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.
No
DTC troubleshooting completed.