Home

< Previous   Next >

2008 - MX-5 - Body and Accessories

DTC B293E/B293D/B294C/B293F [POWER RETRACTABLE HARDTOP]



DTC

B293E

Roof motor circuit malfunction (RH)

B293D

Roof motor circuit malfunction (LH)

B294C

Deck panel motor circuit malfunction (RH)

B293F

Deck panel motor circuit malfunction (LH)

DETECTION CONDITION

  • Motor circuit malfunction

POSSIBLE CAUSE

  • RHT L 30 A fuse malfunction

  • RHT R 30 A fuse malfunction

  • Open or short circuit in wiring harness between roof/deck panel motor and power retractable hardtop control module

  • Roof/deck panel motor malfunction

  • Power retractable hardtop control module malfunction


Diagnostic procedure

STEP

INSPECTION

ACTION

1

INSPECT FUSE
  • Remove the RHT L 30 A and RHT R 30 A fuse.

  • Is the fuse normal?

Yes

Go to the next step.

No

Replace the fuse.

2

INSPECT THE WIRING HARNESS BETWEEN BATTERY AND POWER RETRACTABLE HARDTOP CONTROL MODULE
  • Turn the ignition switch to the ON position.

  • Refer to the power retractable hardtop control module inspection and measure the voltage between power retractable hardtop control module connector terminals 2A and 2B.

    (See POWER RETRACTABLE HARDTOP CONTROL MODULE INSPECTION.)

  • Are the terminal voltages normal?

Yes

Go to the next step.

No

Repair or replace the wiring harness.

3

INSPECT THE WIRING HARNESS BETWEEN POWER RETRACTABLE HARDTOP CONTROL MODULE AND GROUND
  • Turn the ignition switch to the LOCK position.

  • Disconnect the negative battery cable.

  • Disconnect the power retractable hardtop control module connector.

  • Inspect for continuity between power retractable hardtop control module terminal 2E and body ground, and terminal 2F and body ground.

  • Is there continuity?

Yes

Go to the next step.

No

Repair or replace the wiring harness.

4

INSPECT THE ROOF/DECK PANEL MOTOR

Yes

Go to the next step.

No

Replace the roof/deck panel motor.

(See ROOF MOTOR REMOVAL/INSTALLATION.)

(See DECK PANEL MOTOR REMOVAL/INSTALLATION.)

5

INSPECT THE WIRING HARNESS BETWEEN ROOF/DECK PANEL MOTOR AND POWER RETRACTABLE HARDTOP CONTROL MODULE
  • Disconnect the roof/deck panel motor connector.

  • Disconnect the power retractable hardtop control module connector.

  • Inspect the following wiring harnesses for an open or short circuit.

    • Between power retractable hardtop control module connector terminal 3L and roof motor connector (LH) terminal E, and between power retractable hardtop control module connector terminal 3D and roof motor connector (LH) terminal A

    • Between power retractable hardtop control module connector terminal 3A and roof motor connector (RH) terminal E, and between power retractable hardtop control module connector terminal 3I and roof motor connector (RH) terminal A

    • Between power retractable hardtop control module connector terminal 3H and deck panel motor connector (LH) terminal A, and between power retractable hardtop control module connector terminal 3P and deck panel motor connector (LH) terminal E

    • Between power retractable hardtop control module connector terminal 3M and deck panel motor connector (RH) terminal A, and between power retractable hardtop control module connector terminal 3E and deck panel motor connector (RH) terminal E

  • Is the wiring harness normal?

Yes

Replace the power retractable hardtop control module.

(See POWER RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)

No

Repair or replace the wiring harness.




< Previous   Next >
Back to Top
© 2009 Mazda North American Operations, U.S.A.