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DTC B112A [ADVANCED KEYLESS SYSTEM]

id0902e2390200

DTC B1129 | Keyless antenna (interior, front)
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DETECTION CONDITION | Keyless antenna dose not operated.
POSSIBLE CAUSE | • Keyless antenna (interior, front) malfunction • Open or short circuit in wiring harness between keyless control module and keyless antenna • Keyless control module malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY • Disconnect keyless control module connector and keyless antenna (interior, front) 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, front). (See KEYLESS ANTENNA REMOVAL/INSTALLATION) • Go to next step.
No | • Repair the wiring harness between the keyless antenna (interior, front) 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: B112A | 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 [WITH ADVANCED KEYLESS SYSTEM].) (See CARD KEY ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM]) (See STEERING LOCK UNIT ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM]) (See KEYLESS CONTROL MODULE CONFIGURATION [WITH ADVANCED KEYLESS SYSTEM]) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [WITH ADVANCED KEYLESS SYSTEM]) (See SECURITY ACCESS PROCEDURE)
No | DTC troubleshooting completed.