Intermittent failures in electronic systems may be very difficult to detect and accurately diagnose. The Instrument Panel Cluster (IPC) tests for different malfunctions under different vehicle conditions. For this reason, a thorough test drive is often needed in order to repeat a malfunction. If the system malfunction is not repeated during the test drive, a good description of the complaint may be useful in locating an intermittent malfunction. Faulty wires or connections cause most intermittent problems. When an intermittent condition is suspected, inspect the suspected circuits for the following conditions: