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2008 - MX-5 - Body and Accessories

DTC B2170 [ADVANCED KEYLESS SYSTEM]



DTC B2170

Push switch.

DETECTION CONDITION

  • Detect the push switch OFF signal when ignition switch is ON position.

POSSIBLE CAUSE

  • Steering lock unit malfunction

  • Open or short circuit in wiring harness between keyless control module and steering lock unit

  • Keyless control module malfunction


Diagnostic procedure

STEP

INSPECTION

ACTION

1

INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY
  • Disconnect keyless control module connector and steering lock unit connector.

  • Is there continuity between keyless control module terminal 3N and steering lock unit terminal A?

Yes

Replace the steering lock unit and perform the resetting procedure for the steering lock unit.

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

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

No

Repair the wiring harness between the steering lock unit and keyless control module.

2

INSPECT KEYLESS CONTROL MODULE
  • Turn the ignition switch to the ON position.

  • Is the DTC displayed?

    • M-MDS: B2170

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 [KEYLESS ENTRY SYSTEM])

(See SECURITY ACCESS PROCEDURE [ADVANCED KEYLESS SYSTEM])

No

DTC troubleshooting completed.




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