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SECURITY LIGHT: DTC 11 (WDS OR EQUIVALENT: DTC -/B1681)

id0902i8914200

DTC 11 (-/B1681) | Communication error between the keyless control module and the PCM.
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POSSIBLE CAUSE | • Defective keyless control module • Defective PCM • Defective wiring harness

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY • Disconnect keyless control module and PCM connectors. • Is there continuity between the following terminals? L8, LF, L3 Engine - 3A-1E - 3C-1F MZR-CD (RF Turbo) Engine - 3A-89 - 3C-112 | Yes | Replace keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [WITH ADVANCED KEYLESS SYSTEM])
No | Repair the wiring harness between the keyless control module and PCM, then go to the next step.
2 | INSPECT KEYLESS CONTROL MODULE • Turn the ignition switch to the ON position. • Is the DTC displayed? - Security light: 11 - WDS or equivalent: -/B1681 | Yes | Replace PCM and reprogram immobilizer system.
No | DTC troubleshooting completed.