Self-diagnostic Function: Notes

NOTE: Before doing the self-diagnostic function, make sure the No. 1 (15 A) and the No. 22 (7.5 A) fuses in the under-dash fuse/relay box are OK.

The gauge control module has a self-diagnostic function which consists of the following checks:

The indicator drive circuit check.
The beeper drive circuit check.
The ambient meter color variation check.
The switch input test.
The multi-information display (MID) check.
The gauges drive circuit check (tachometer, fuel gauge, charge/assist 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).

NOTE: Indicators are also controlled via the communication lines.