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2008 - MX-5 - Body and Accessories

NO. 3 POWER RETRACTABLE HARDTOP DOES NOT START TO OPEN [POWER RETRACTABLE HARDTOP]



3

Power retractable hardtop does not to start open

DESCRIPTION

  • Power retractable hardtop does not start to open when the power retractable hardtop (open) switch is pressed

POSSIBLE CAUSE

  • Power retractable hardtop control module cannot detect the power retractable hardtop permission condition signal.

    • Improper vehicle speed detected

    • Improper transmission position detected (except for transmission neutral (MT)/N or P position (AT) detected)

  • Power retractable hardtop control module cannot detect the proper power retractable hardtop switch signal.

    • Power retractable hardtop (open) switch malfunction (stuck off)

    • Power retractable hardtop (close) switch malfunction (stuck on)

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

  • Release of the top lock cannot be determined by the Power retractable hardtop control module.

    • Top lock switch malfunction

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

  • Power retractable hardtop control module cannot detect proper deck panel and roof positions

    • Deck panel open position switch signal improper

      • Deck panel open position switch malfunction

      • Deck panel open position switch improper installation

      • Open or short circuit in the wiring harness

    • Deck panel close position switch signal malfunction

      • Deck panel close position switch malfunction

      • Deck panel close position switch improper installation

      • Open or short circuit in the wiring harness

    • Power retractable hardtop open position switch signal malfunction

      • Power retractable hardtop open position switch malfunction

      • Power retractable hardtop open position switch improper installation

      • Open or short circuit in the wiring harness

    • Power retractable hardtop close position switch signal malfunction

      • Power retractable hardtop close position switch malfunction

      • Power retractable hardtop close position switch improper installation

      • Open or short circuit in the wiring harness

  • Power retractable hardtop link mechanics malfunction

    • Excessive restriction or hesitation

  • Power retractable hardtop control module detects a system malfunction

    NOTE:

    • If the following conditions are recognized, the power retractable hardtop control module invalidates the operation of the power retractable hardtop (open) switch.

      • Top lock is locked with the power retractable hardtop fully closed

      • Power retractable hardtop the fully open




STEP

INSPECTION

ACTION

1

INSPECT TO SEE WHETHER MALFUNCTION IS IN OPERATION PERMISSION CONDITION SIGNAL OR ELSEWHERE

Yes

Go to the next step.

No

Inspect and repair the suspected signal related wiring harness and component.

2*

INSPECT TO SEE WHETHER MALFUNCTION IS IN POWER RETRACTABLE HARDTOP (CLOSE) SWITCH SIGNAL OR ELSEWHERE
  • Monitor the power retractable hardtop control module PID SW_CL (power retractable hardtop (close) switch) using the M-MDS without the power retractable hardtop (close) switch pressed.

    (See POWER RETRACTABLE HARDTOP CONTROL MODULE INSPECTION.)

  • Is the monitor value OFF?

Yes

Go to step 4.

No

Go to the next step.

3

INSPECT POWER RETRACTABLE HARDTOP (CLOSE) SWITCH
  • Turn the ignition switch to the LOCK position.

  • Remove the power retractable hardtop switch.

  • Measure the resistance between power retractable hardtop switch component side connector terminals A and F without the power retractable hardtop (close) switch pressed.

  • Is the resistance 2.18—2.22 kΩ?

Yes

Replace the power retractable hardtop switch.

(See POWER RETRACTABLE HARDTOP SWITCH REMOVAL/INSTALLATION.)

No

Inspect and repair the wiring harness between power retractable hardtop control module terminal 1H and power retractable hardtop switch terminal F at wiring harness side connectors.

4

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

  • Verify the power retractable hardtop indicator light status.

  • Does the power retractable hardtop indicator light flash or illuminate?

Yes

If the indicator light is flashing:
  • Go to the next step.

    If the indicator light is illuminated:
  • Go to step 6.

No

Go to step 9.

5

VERIFY THAT PRESENT MALFUNCTION DTC IS 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.

6*

INSPECT TO SEE WHETHER MALFUNCTION IS IN TOP LOCK SWITCH OR ELSEWHERE
  • Connect the M-MDS to DLC-2.

  • Monitor the power retractable hardtop control module PID SW_STRIKER using the M-MDS while the top lock switch is released.

    (See DTC INSPECTION [POWER RETRACTABLE HARDTOP].)

  • Is the monitor value OFF?

Yes

Go to step 8.

No

Go to the next step.

7

INSPECT TOP LOCK SWITCH

Yes

Inspect and repair for an open or short circuit between the top lock switch and power retractable hardtop control module.

No

Replace the top lock.

(See FRONT ROOF PANEL DISASSEMBLY/ASSEMBLY.)

8*

INSPECT POWER RETRACTABLE HARDTOP LIMIT SWITCH AND DECK PANEL LIMIT SWITCH
  • Monitor the power retractable hardtop control module PID RHT_OP, RHT_CL, DECK_OP and DECK_CL using the M-MDS.

  • Do the monitoring values indicate the roof and deck panel positions properly?

Yes

Verify that the malfunction symptom appears without the roof and deck panel in the fully open position.

If the same symptom appears, replace the power retractable hardtop control module.

(See POWER RETRACTABLE HARDTOP REMOVAL/INSTALLATION.)

No

Inspect and repair suspected position sensor.

(See POWER RETRACTABLE HARDTOP LIMIT SWITCH INSPECTION.)

(See DECK PANEL LIMIT SWITCH INSPECTION.)

9*

INSPECT TO SEE WHETHER MALFUNCTION IS IN POWER RETRACTABLE HARDTOP (OPEN) SWITCH SIGNAL OR ELSEWHERE
  • Monitor the power retractable hardtop control module PID SW_OP using the M-MDS while the power retractable hardtop (open) switch is pressed.

  • Is the monitor value ON?

Yes

Go to step 10.

No

Go to the next step.

10

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

  • Measure the resistance between power retractable hardtop switch connector (component side) terminal A and F while the power retractable hardtop (open) switch is pressed.

  • Is the resistance 0.99—1.01 kΩ?

Yes

Inspect and repair the wiring harness between power retractable hardtop control module terminal 1H and power retractable hardtop switch terminal F at the wiring harness side connectors.

No

Replace the power retractable hardtop switch.

11

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

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

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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