PINPOINT TEST B : TONNEAU COVER SENSOR FAULTS
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
B1 CHECK FOR RETURNING DIAGNOSTIC TROUBLE CODES (DTCS)
Using a diagnostic scan tool, clear the Moveable Roof Control Module A (MRCMA) or Moveable Roof Control Module B (MRCMB) Diagnostic Trouble Codes (DTCs). Ignition OFF. Ignition ON. With the convertible top in the open position, press and hold the convertible top UP switch for 2 seconds. Using a diagnostic scan tool, carry out the Moveable Roof Control Module A (MRCMA) and Moveable Roof Control Module B (MRCMB) self-tests.
Does the DTC return?
Yes | If DTC B1070:12 or B1070:29 is present, GO to B2 If DTC B1070:14 is present, GO to B3 | |
|---|---|---|
No | The condition that caused the DTC to set is not present at this time. The concern may have been caused by a loose or corroded electrical connector or an intermittent concern. DISCONNECT and INSPECT the suspect tonneau cover sensor C4525 or C4526, and Moveable Roof Control Module A (MRCMA) C4830 or Moveable Roof Control Module B (MRCMB) C4831 for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR or INSTALL new components as necessary. For all other Moveable Roof Control Module A (MRCMA) and Moveable Roof Control Module B (MRCMB) Diagnostic Trouble Codes (DTCs), GO to the DTC Chart: Moveable Roof Control Module A (MRCMA) or Moveable Roof Control Module B (MRCMB). | |
B2 CHECK THE TONNEAU COVER SENSOR SIGNAL CIRCUIT FOR A SHORT TO BATTERY VOLTAGE
Ignition OFF. If Moveable Roof Control Module A (MRCMA) set the DTC:
Disconnect Moveable Roof Control Module A (MRCMA) C4830. Disconnect LH tonneau cover sensor C4525.
If Moveable Roof Control Module B (MRCMB) set the DTC:
Moveable Roof Control Module B (MRCMB) C4831. Disconnect RH tonneau cover sensor C4526.
Ignition ON. For Moveable Roof Control Module A (MRCMA) measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C4830-2 | Ground |
For Moveable Roof Control Module B (MRCMB) measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C4831-2 | Ground |
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.