Diagnostic Trouble Code (DTC) Information CRM-2031

Condition 

Power consumption for hall sensor below normal value

If no hall sensor pulse is detected when the hydraulic pump for operating the convertible roof is activated, the diagnostic trouble code is generated.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Fig 1: Identifying Hall Sensor

Courtesy of VOLVO CARS CORPORATION

Substitute Value 

• None.

Possible Source 

• Signal cable between the hall sensor and Convertible Roof Module (CRM) is short-circuited to voltage.
• Damaged hall sensor.
• Internal error in Convertible Roof Module (CRM).

Fault symptom[s] 

• Lockable storage doesn't work
• Message in information display