Self-diagnostic Function: Notes

The gauge control module has a self-diagnostic function.

• The beeper drive circuit check.
• The indicator drive circuit check.
• The switch input test.
• The LCD segments check.
• The gauges drive circuit check (speedometer, tachometer, fuel gauge, coolant temperature gauge).
• The communication line check (of the body-controller area network (B-CAN) communication line and the fast-controller area network (F-CAN) communication line between the gauges).