Electrical System

SERVICE VEHICLE SOON INDICATOR
The IPC illuminates the service vehicle soon indicator in the message center when the following occurs:
^ DTC B0670 sets in the SDM module.
^ The PCM detects certain non-emissions related malfunctions. The IPC receives a class 2 message from the PCM requesting illumination.
^ The IPC performs the displays test at the start of each ignition cycle.
^ The IPC detects a loss of class 2 communications with any other module.