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2008 - MX-5 - Body and Accessories

NO. 5 POWER RETRACTABLE HARDTOP STOPS WHILE OPERATING [POWER RETRACTABLE HARDTOP]



5

Power retractable hardtop stops while operating

DESCRIPTION

  • Power retractable hardtop stops while the power retractable hardtop is opening/closing

POSSIBLE CAUSE

  • Deck panel does not operate while power retractable hardtop is operating

    • Deck panel cannot move

      • Open or short circuit or poor connection in the wiring harness between the left/right deck panel motor and power retractable hardtop control module

      • Left/right deck panel motor malfunction

      • Deck panel link mechanics malfunction (excessive restriction or hesitation)

    • Deck panel position cannot be detected

      • Deck panel open position switch malfunction

      • Deck panel close position switch malfunction

      • Open or short circuit or poor connection in the wiring harness between the deck panel open position switch and the power retractable hardtop control module

      • Open or short circuit or poor connection in wiring harness between deck panel close position switch and power retractable hardtop control module

      • Foreign material caught in mechanism.

  • Roof does not operate while the power retractable hardtop is operating

    • Roof cannot move

      • Open or short circuit or poor connection in the wiring harness between the left/right roof motor and the power retractable hardtop control module

      • Left/right roof motor malfunction

      • Roof link mechanics malfunction (excessive restriction or hesitation)

    • Roof position cannot be detected

      • Power retractable hardtop open position switch malfunction

      • Power retractable hardtop close position switch malfunction

      • Open or short circuit or poor connection in the wiring harness between the power retractable hardtop open position switch and the power retractable hardtop control module

      • Open or short circuit or poor connection in the wiring harness between the power retractable hardtop close position switch and the power retractable hardtop control module

      • Foreign material caught in mechanism.

  • Power retractable hardtop switch signal is interrupted while the power retractable hardtop is operating

    • Power retractable hardtop (open) switch malfunction (Contact point defective)

    • Power retractable hardtop (close) switch malfunction (Contact point defective)

    • Open or short circuit or poor connection in the wiring harness between the power retractable hardtop control module and the power retractable hardtop switch

  • Power retractable hardtop control module detects a system malfunction




STEP

INSPECTION

ACTION

1

VERIFY THAT POWER RETRACTABLE HARDTOP INDICATOR LIGHT ILLUMINATES
  • Turn the ignition switch to the ON position.

  • Verify the power retractable hardtop indicator light status.

  • Does the power retractable hardtop indicator light flash?

Yes

Go to the next step.

No

Go to step 3.

2

VERIFY THAT PRESENT MALFUNCTION DTC STORED

Yes

Go to the appropriate DTC inspection.

(See DTC TABLE [POWER RETRACTABLE HARDTOP].)

No

Go to symptom troubleshooting “No.2 POWER RETRACTABLE HARDTOP INDICATOR LIGHT IS FLASHING” procedure.

3

INSPECT TO SEE WHETHER MALFUNCTION IS IN DECK PANEL OR ELSEWHERE
  • Verify the malfunction symptom.

  • Does the deck panel operation stop during the open or close operation?

Yes

    Stops during the deck panel open operation:
  • Go to the next step.

    Stops during the deck panel close operation:
  • Go to step 7.

No

Go to step 14.

4

INSPECT TO SEE WHETHER MALFUNCTION IS IN DECK PANEL OPEN POSITION SWITCH OR ELSEWHERE
  • Monitor the power retractable hardtop control module PID DECK_OP using the M-MDS at the position where the deck panel does not operate.

  • Is the monitor value ON (deck panel fully open)?

Yes

Go to the next step.

No

Go to step 10.

5

INSPECT DECK PANEL OPEN POSITION SWITCH

Yes

Go to the next step.

No

Replace the deck panel limit switch.

(See DECK PANEL LIMIT SWITCH REMOVAL/INSTALLATION.)

6*

INSPECT DECK PANEL OPEN POSITION SWITCH WIRING HARNESS
  • Turn the ignition switch to the LOCK position.

  • Disconnect the power retractable hardtop control module (16-pin) and the deck panel open position switch connectors.

  • Verify the continuity between power retractable hardtop control module terminal 3F and ground.

  • Is there continuity?

Yes

Adjust the deck panel open position switch installation.

No

Repair for a short to the ground circuit.

7

INSPECT TO SEE WHETHER MALFUNCTION IS IN DECK PANEL CLOSE POSITION SWITCH OR ELSEWHERE
  • Monitor the power retractable hardtop control module PID DECK_CL using the M-MDS when the position where the deck panel could not operate.

  • Is the monitor value ON (deck panel fully closed)?

Yes

Go to the next step.

No

Go to step 10.

8

INSPECT DECK PANEL CLOSE POSITION SWITCH

Yes

Go to the next step.

No

Replace the deck panel limit switch.

(See DECK PANEL LIMIT SWITCH REMOVAL/INSTALLATION.)

9*

INSPECT DECK PANEL CLOSE POSITION SWITCH WIRING HARNESS
  • Turn the ignition switch to the LOCK position.

  • Disconnect the power retractable hardtop control module (16-pin) and the deck panel close position switch connectors.

  • Verify that the continuity between the power retractable hardtop control module terminal 3F and ground.

  • Is there any continuity?

Yes

Adjust the deck panel close position switch installation.

No

Repair for a short to the ground circuit.

10*

INSPECT DECK PANEL MOTOR WIRING HARNESS
  • Turn the ignition switch to the LOCK position.

  • Disconnect the power retractable hardtop control module (16-pin, 24-pin), and deck panel motor (left, right)(6-pin) connectors on both sides.

  • Inspect for an open or short circuit and poor connection at the following terminals:

    • Power retractable hardtop control module terminal 3M—deck panel motor (right) terminal A

    • Power retractable hardtop control module terminal 3E—deck panel motor (right) terminal E

    • Power retractable hardtop control module terminal 1K—deck panel motor (right) terminal F

    • Power retractable hardtop control module terminal 3H—deck panel motor (left) terminal A

    • Power retractable hardtop control module terminal 3P—deck panel motor (left) terminal E

    • Power retractable hardtop control module terminal 1O—deck panel motor (left) terminal F

  • Is there an open or short circuit, or a poor connection?

Yes

Repair or replace malfunctioning part.

No

Go to the next step.

11

INSPECT DECK PANEL MOTOR

Yes

Go to the next step.

No

Replace suspected deck panel motor.

(See DECK PANEL MOTOR REMOVAL/INSTALLATION.)

12

INSPECT DECK PANEL MOTOR HALL SENSOR
  • Measure the pulse profiles for the following power retractable hardtop control module (24-pin) while the deck panel is operating using the oscilloscope.

    • Terminal 1K (right deck panel motor hall sensor)

    • Terminal 1O (left deck panel motor hall sensor)

  • Is the pulse profile normal?

    (See POWER RETRACTABLE HARDTOP CONTROL MODULE INSPECTION.)

Yes

Go to the next step.

No

Replace the suspected deck panel motor.

(See DECK PANEL MOTOR REMOVAL/INSTALLATION.)

13

INSPECT POWER RETRACTABLE HARDTOP LINK MECHANICS
  • Inspect the power retractable hardtop link mechanics.

  • Is there any restriction or hesitation for the power retractable hardtop operation?

Yes

Repair or replace the malfunctioning part.

No

Go to step 25.

14

INSPECT TO SEE WHETHER MALFUNCTION IS IN ROOF OR ELSEWHERE
  • Verify that malfunction symptom.

  • Does the roof operation stop during the open or close operation?

Yes

    Stops during the roof open operation:
  • Go to the next step.

    Stops during the roof close operation:
  • Go to step 18.

No

Go to step 25.

15

INSPECT TO SEE WHETHER MALFUNCTION IS IN POWER RETRACTABLE HARDTOP OPEN POSITION SWITCH OR ELSEWHERE
  • Monitor the power retractable hardtop control module PID RHT_OP using the M-MDS at the position where the roof does operate.

  • Is the monitor value on (roof fully open)?

Yes

Go to the next step.

No

Go to step 22.

16

INSPECT POWER RETRACTABLE HARDTOP OPEN POSITION SWITCH

Yes

Go to the next step.

No

Replace the power retractable hardtop limit switch.

(See POWER RETRACTABLE HARDTOP LIMIT SWITCH REMOVAL/INSTALLATION.)

17*

INSPECT RETRACTABLE HARDTOP OPEN POSITION SWITCH WIRING HARNESS
  • Turn the ignition switch to the LOCK position.

  • Disconnect the power retractable hardtop control module (24-pin) and the power retractable hardtop open position switch connectors.

  • Verify that continuity between power retractable hardtop control module terminal 1T—ground.

  • Is there continuity?

Yes

Adjust the power retractable hardtop open position switch installation.

No

Repair for a short to the ground circuit.

18

INSPECT TO SEE WHETHER MALFUNCTION IS IN POWER RETRACTABLE HARDTOP CLOSE POSITION SWITCH OR ELSEWHERE

Yes

Go to the next step.

No

Go to step 20.

19

INSPECT POWER RETRACTABLE HARDTOP CLOSE POSITION SWITCH

Yes

Go to the next step.

No

Replace the power retractable hardtop limit switch.

(See POWER RETRACTABLE HARDTOP LIMIT SWITCH REMOVAL/INSTALLATION.)

20*

INSPECT POWER RETRACTABLE HARDTOP CLOSE POSITION SWITCH WIRING HARNESS
  • Turn the ignition switch to the LOCK position.

  • Disconnect the power retractable hardtop control module (24-pin) and the deck panel close position switch connectors.

  • Verify that continuity between power retractable hardtop control module terminal 1F—ground.

  • Is there any continuity?

Yes

Adjust the power retractable hardtop close position switch installation position.

No

Repair for a short to the ground circuit.

21*

INSPECT ROOF MOTOR WIRING HARNESS
  • Turn the ignition switch to the LOCK position.

  • Disconnect the power retractable hardtop control module (16-pin, 24-pin), and the roof motor (left, right)(6-pin) connector on both sides.

  • Inspect for the open or short circuit and poor connection at the following terminals:

    • Power retractable hardtop control module terminal 3I—roof motor (right) terminal A

    • Power retractable hardtop control module terminal 3A—roof motor (right) terminal E

    • Power retractable hardtop control module terminal 1I—roof motor (right) terminal D

    • Power retractable hardtop control module terminal 3C—roof motor (left) terminal A

    • Power retractable hardtop control module terminal 3L—roof motor (left) terminal E

    • Power retractable hardtop control module terminal 1M—roof motor (left) terminal D

  • Is there an open or short circuit, or a poor connection?

Yes

Repair or replace the malfunctioning part.

No

Go to the next step.

22

INSPECT ROOF MOTOR
  • Inspect the both side roof motor hall sensors on both side.

    (See ROOF MOTOR INSPECTION.)

  • Are both roof motors normal?

Yes

Go to the next step.

No

Replace the suspected roof motor.

(See ROOF MOTOR REMOVAL/INSTALLATION.)

23

INSPECT ROOF MOTOR HALL SENSOR
  • Measure the pulse profiles for the following power retractable hardtop control module (24-pin) while the roof is operating using the oscilloscope.

    • Terminal 1I (right side roof motor hall sensor)

    • Terminal 1M (left side roof motor hall sensor)

  • Is the pulse profile normal?

    (See POWER RETRACTABLE HARDTOP CONTROL MODULE INSPECTION.)

Yes

Go to the next step.

No

Replace the suspected roof motor.

(See ROOF MOTOR REMOVAL/INSTALLATION.)

24

INSPECT POWER RETRACTABLE HARDTOP LINK MECHANICS
  • Inspect the roof link mechanics.

  • Does the roof operation stop during open or close operation?

Yes

Repair or replace the malfunctioning part.

No

Go to the next step.

25

INSPECT POWER RETRACTABLE HARDTOP SWITCH
  • Remove the power retractable hardtop switch.

  • Measure the resistance between power retractable hardtop switch connector (component side) terminals A and F.

  • Is the resistance normal?

    • Power retractable hardtop (open) switch pressed: 0.99—1.01 kΩ

    • Power retractable hardtop (close) switch pressed: 2.18—2.22 kΩ

Yes

Go to the next step.

No

Replace the power retractable hardtop switch.

(See POWER RETRACTABLE HARDTOP SWITCH REMOVAL/INSTALLATION.)

26*

INSPECT POWER RETRACTABLE HARDTOP SWITCH WIRING HARNESS
  • Turn the ignition switch to the ON position.

  • Disconnect the power retractable hardtop control module (24-pin) and power retractable hardtop switch connectors.

  • Inspect for an open or short circuit and poor connection between the power retractable hardtop control module terminal 1H and the power retractable hardtop switch terminal F.

  • Is there any open or short circuit, or poor connection?

Yes

Repair or replace the malfunctioning part.

No

Replace the power retractable hardtop control module.

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




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