Diagnosis And Testing

The hard wired circuits may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, details of wire harness routing and retention, connector pin out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the electronic active exhaust valve system or the electronic controls and communication between modules and other devices that provide some features of the system. The most reliable, efficient and accurate means to diagnose the system or the electronic controls and communication related to system operation requires the use of a diagnostic scan tool.

The electronic active exhaust valves will set an engine light if a problem is detected (i.e. stuck open or closed, become unplugged, etc.).