DTC 31 - Key Reminder On/Off Signal

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 31)

Courtesy of MAZDA MOTORS CORP.

DIAGNOSTIC PROCEDURE - DTC 31

STEP	INSPECTION	INDICATION	ACTION
1	Remove key from steering lock and then insert key into steering lock after selecting DTC 31 (key reminder switch on).	on	Go to next step.
1		off	Measure voltage at instrument cluster terminal 1J. Is voltage B+ ? If as specified, replace instrument cluster. If not as specified, replace following parts. Key reminder switch Wiring harness (Battery - key reminder switch - instrument cluster)
2	Remove key from steering lock (key reminder switch off).	on	Measure voltage at instrument cluster terminal 1J. Is voltage 0 V ? If as specified, replace instrument cluster. If not as specified, inspect following parts. Key reminder switch Wiring harness (Key reminder switch - instrument cluster)
2	Remove key from steering lock (key reminder switch off).	off	Input signal to instrument cluster is okay.