DTC B1127

Keyless antenna (interior, trunk)

DETECTION CONDITION

Keyless antenna dose not operated.

POSSIBLE CAUSE

• Keyless antenna (interior, trunk) malfunction

• Open or short circuit in wiring harness between keyless control module and keyless antenna

• Keyless control module malfunction

STEP

INSPECTION

ACTION

1

• Disconnect keyless control module connector and keyless antenna (interior, trunk) connector.

• Inspect the continuity between the following connector terminals.

• keyless control module: 2G—keyless antenna: A

• keyless control module: 2H—keyless antenna: B

• Is there continuity?

Yes

• Replace keyless antenna (interior, trunk).

  (See KEYLESS ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS SYSTEM].)

• Go to next step.

No

• Repair the wiring harness between the keyless antenna (interior, trunk) and keyless control module.

• Go to next step.

2

• Turn the ignition switch to the ON position.

• Is the DTC displayed?

• M-MDS: B1127

Yes

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

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

(See CARD KEY ID CODE REGISTRATION [ADVANCED KEYLESS SYSTEM].)

(See STEERING LOCK UNIT ID CODE REGISTRATION [ADVANCED KEYLESS SYSTEM].)

(See KEYLESS CONTROL MODULE CONFIGURATION [ADVANCED KEYLESS SYSTEM].)

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

(See SECURITY ACCESS PROCEDURE [ADVANCED KEYLESS SYSTEM].)

No

DTC troubleshooting completed.