Convertible Top — 2016 workshop reference 1534

Using a diagnostic scan tool, view the Moveable Roof Control Module A (MRCMA) LTCH_SNSR_V PID.

Is the PID display equal to battery voltage?

Yes	If the vehicle is equipped with convertible top tonneau covers, GO to A8 If the vehicle is not equipped with convertible top tonneau covers, the system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. DISCONNECT and INSPECT Moveable Roof Control Module A (MRCMA) C4830, Moveable Roof Control Module B (MRCMB) C4831, convertible top switch C9013 and convertible top latch switch C9111 for corrosion, damaged pins, bent pins, pushed-out pins and spread terminals. REPAIR or INSTALL NEW as necessary.
No	GO to Pinpoint Test D

Yes

If the vehicle is equipped with convertible top tonneau covers, GO to A8 If the vehicle is not equipped with convertible top tonneau covers, the system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. DISCONNECT and INSPECT Moveable Roof Control Module A (MRCMA) C4830, Moveable Roof Control Module B (MRCMB) C4831, convertible top switch C9013 and convertible top latch switch C9111 for corrosion, damaged pins, bent pins, pushed-out pins and spread terminals. REPAIR or INSTALL NEW as necessary.

GO to Pinpoint Test D

A8 CHECK THE CONVERTIBLE TOP TONNEAU COVER SENSOR PARAMETER IDENTIFICATIONS (PIDS)

Using a diagnostic scan tool, view the Moveable Roof Control Module A (MRCMA) tonneau cover sensor PID with the tonneau covers installed and removed. Using a diagnostic scan tool, view the Moveable Roof Control Module B (MRCMB) tonneau cover sensor PID with the tonneau covers installed and removed.

Do the Parameter Identifications (PIDs) display Active with the covers installed and Inactive with the covers removed?

Yes	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. DISCONNECT and INSPECT Moveable Roof Control Module A (MRCMA) C4830, Moveable Roof Control Module B (MRCMB) C4831, convertible top switch C9013, convertible top latch switch C9111, LH tonneau cover sensor C4525 and RH tonneau cover sensor C4526 for corrosion, damaged pins, bent pins, pushed-out pins and spread terminals. REPAIR or INSTALL NEW as necessary.
No	GO to Pinpoint Test B

Yes

The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. DISCONNECT and INSPECT Moveable Roof Control Module A (MRCMA) C4830, Moveable Roof Control Module B (MRCMB) C4831, convertible top switch C9013, convertible top latch switch C9111, LH tonneau cover sensor C4525 and RH tonneau cover sensor C4526 for corrosion, damaged pins, bent pins, pushed-out pins and spread terminals. REPAIR or INSTALL NEW as necessary.

GO to Pinpoint Test B

A9 CHECK THE CONVERTIBLE TOP ACTIVATION SWITCH CIRCUITS FOR AN OPEN

Ignition OFF. Disconnect Moveable Roof Control Module A (MRCMA) C4830. Disconnect Moveable Roof Control Module B (MRCMB) C4831. Disconnect convertible top switch C9013. Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C4830-8		C9013-4

Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C4831-8		C9013-3

Is the resistance less than 3 ohms?

Source reference 1534

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.