Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying TMC/FM Receiver

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) RTI-131 is stored if the control module registers a fault in the communication with the TMC (Traffic Message Channel) receiver.

In Japan the TMC receiver is replaced by an FM receiver for which the Diagnostic trouble code (DTC) RTI-141 is stored.

Substitute Value 

None.

Possible Source 

• An open-circuit in the signal cable between the control module #B5, #B6 or #B14 and TMC(FM)-receiver terminals 8, 9 and 10.
• An open-circuit or a short-circuit to ground in the signal cable between the control module #B7 and TMC(FM)-receiver terminal 2.
• An open-circuit or a short-circuit to ground or voltage on the signal cable between the control module #B16 and TMC(FM)-receiver terminal 3.
• Contact resistance in terminals.
• Defective TMC(FM) receiver.

Fault symptom[s] 

• Traffic information is not shown or not updated.