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2008 - MX-5 - Body and Accessories

DTC U0214 [ADVANCED KEYLESS SYSTEM]



DTC U0214

Keyless receiver.

DETECTION CONDITION

  • When the keyless receiver power supply voltage is less than 7.5 V.

POSSIBLE CAUSE

  • Keyless receiver malfunction

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

  • Keyless control module malfunction


Diagnostic procedure

STEP

INSPECTION

ACTION

1

INSPECT WIRING HARNESS BETWEEN KEYLESS RECEIVER AND GROUND
  • Disconnect keyless receiver connector.

  • Is there continuity between keyless receiver terminal E and ground?

Yes

Go to next step.

No

  • Repair the wiring harness between the keyless receiver and ground.

  • Go to next step.

2

INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY
  • Disconnect keyless control module connector and keyless receiver connector.

  • Inspect the continuity between the following connector terminals.

    • keyless control module: 3S—keyless receiver: A

    • keyless control module: 3U—keyless receiver: C

  • Is there continuity?

Yes

Go to next step.

No

  • Repair the wiring harness between the keyless receiver and keyless control module.

  • Go to next step.

3

INSPECT KEYLESS RECEIVER POWER SUPPLY CIRCUIT
  • Turn ignition switch to ON position.

  • Measure voltage at terminal 3S of keyless control module connector.

  • Is voltage more than 7.5 V?

Yes

Replace keyless receiver.

(See KEYLESS RECEIVER REMOVAL/INSTALLATION [ADVANCED KEYLESS SYSTEM])

No

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])




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