Self-diagnostic Function: Notes

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before doing the self-diagnostic function, make sure the No. 1 (10 A) and the No. 22 (7.5 A) fuse 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 beeper drive circuit check.
The indicator drive circuit check.
The switch input test.
The LCD segment check.
The gauges drive circuit check (tachometer, fuel gauge, speedometer).
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 line.