April 5, 2026: LEMON Manuals is launched! Read the announcement.

Switch Inspection

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

After performing the on-board diagnostic test procedure, turn on the audio.

Inspect according to the following table:

SWITCH INSPECTION

STEP	INSPECTION	ACTION
1	Press each mode switch of the climate control unit.	The buzzer sounds.	The switch is normal.
1	Press each mode switch of the climate control unit.	The buzzer does not sound.	Go to the next step.
2	Inspect the audio buttons by referring to the diagnostic assist function in the onboard diagnostic system [audio].	The buzzer sounds.	Replace the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION .)
2		The buzzer does not sound.	Replace the base unit.

Disconnect the jumper wire or the similar device connected to the A/C amplifier connector (24-pin) to exit the on-board diagnostic test function.