How to display DTCs on the gauge control module

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

While in Test Mode 1, the DTCs which have been detected and stored individually by various B-CAN (Body-controller Area Network) units, will be shown one by one on the multi-information display when the communication between the Multiplex Integrated Control Unit (MICU) and the gauge control module are normal. To scroll through the DTCs, press the select/reset switch on the gauge control module.

Fig 1: Gauge Control Module DTC Display

Courtesy of AMERICAN HONDA MOTOR CO., INC.

The unit that has been stored the code can be identified by the number shown on the multi-information display.

CONTROL UNIT SPECIFICATION

Control Unit	Control Unit ID. Number
MICU	10
Relay control module	11
MICU-rear junction box	12
Door multiplex control unit	30
Power tailgate control unit	31
Left power sliding door control unit	33
Right power sliding door control unit	34
Gauge control module	50
A/C control panel/climate control unit	51
Combination switch control unit	70
Automatic lighting control unit	72
Power seat control unit	95