DTC B1127 [ADVANCED KEYLESS SYSTEM]


DTC B1127	Keyless antenna (interior, rear)
DETECTION CONDITION	Keyless antenna dose not operated.
POSSIBLE CAUSE	• Keyless antenna (interior, rear) malfunction • Open or short circuit in wiring harness between keyless control module and keyless antenna • Keyless control module malfunction


STEP	INSPECTION		ACTION
1	INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY • Disconnect keyless control module connector and keyless antenna (interior, rear) connector. • Inspect the continuity between the following connector terminals. - keyless control module: 1I-keyless antenna: A - keyless control module: 1J-keyless antenna: B • Is there continuity?	Yes	• Replace keyless antenna (interior, RR). (See KEYLESS ANTENNA REMOVAL/INSTALLATION) • Go to next step.
1		No	• Repair the wiring harness between the keyless antenna (interior, rear) and keyless control module. • Go to next step.
2	INSPECT KEYLESS CONTROL MODULE • Turn the ignition switch to the ON position. • Is the DTC displayed? - WDS or equivalent: 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)
2		No	DTC troubleshooting completed.