DTC 1-4-2: Control Module Fault: Testing

Use illustration(s) for diagnosis of DTC 1-4-2, see Fig 1 . If fault tracing cannot be completed through DLC, check DLC. See CHECKING DATA LINK CONNECTOR  under SELF-DIAGNOSTIC SYSTEMS.

Fig 1: DTC 1-4-2: Control Module Fault

Courtesy of VOLVO CARS OF NORTH AMERICA.