Diagnostic trouble code (DTC) information CEM-3F03

Condition 

Fig 1: Identifying Gearshift Lever and Linkage

Courtesy of VOLVO CARS OF NORTH AMERICA.

The central electronic module (CEM) checks the function of the shift lock.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) detects a short-circuit to ground or an open-circuit in the output signal circuit to the shift lock.

The relay for shift lock must not be activated for the diagnostic trouble code (DTC) to be stored. The diagnostic trouble code (DTC) can be diagnosed at ignition switch position II.

Substitute Value 

• None.

Possible Source 

• Open-circuit in the "Inhibited shifting" output signal. The relay is not activated.

Fault symptom[s] 

• The starter motor does not turn
• The engine does not start.