DTC 27 - Operation Signal To Interior Light

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

Fig 1: Identifying Instrument Cluster Connector Terminals (DTC 27)

Courtesy of MAZDA MOTORS CORP.

DIAGNOSTIC PROCEDURE - DTC 27

INSPECTION	INDICATION	SITUATION	ACTION
Turn interior light switch to DOOR position. Wait for 2 seconds after selecting DTC 27.	on (Turns on and off)	Interior light turns on and off three times .	Interior light is okay.
	on (Turns on and off)	Other than stated above.	Measure voltage at instrument cluster terminal 3H. Is voltage B+ ? If as specified, replace instrument cluster. If not as specified, inspect following parts. Interior light Wiring harness (Battery - interior light - instrument cluster)