Diagnostic trouble code (DTC) information

Condition 

The central electronic module checks the output signal to the relay coil for relay 2/143.

Diagnostic trouble code (DTC) CEM-3A08 is stored if the central electronic module registers that the output signal to the relay coil is missing or too low.

Diagnostic trouble code (DTC) CEM-3A08 can be detected when the relay driver is not activated.

Substitute Value 

• None.

Possible Source 

• Relay missing
• Defective relay
• Contact resistance in the relay base.

Fault symptom[s]