Cruise Control Switch Inspection [13B-MSP]

WARNING: This page is about a different car, the 2010 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable and wait for 1 min or more .
Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION .)
Disconnect the cruise control switch connector. (See AUDIO CONTROL SWITCH REMOVAL/INSTALLATION .)

Inspect for resistance and continuity between cruise control switch terminals G-F using a tester.

If not as specified, replace the audio control switch. (See AUDIO CONTROL SWITCH REMOVAL/INSTALLATION .)

Fig 1: Identifying Cruise Control Switch Circuit With Connector Terminals

Courtesy of MAZDA MOTORS CORP.

RESISTANCE REFERENCE CHART

Switch condition	Resistance (ohm)
ON/OFF button pressed	Continuity
CANCEL button pressed	117-123
SET/COAST button pressed	666-694
RES/ACCEL button pressed	2,156-2,244
No button pressed	No continuity

Apply battery positive voltage to cruise control switch terminal E, and connect terminal D to ground.
Verify that the LED illuminates.
- If the LED does not illuminate, replace the audio control switch. (See AUDIO CONTROL SWITCH REMOVAL/INSTALLATION .)
  
  Fig 2: Identifying Cruise Control Switch Test Terminals
  Courtesy of MAZDA MOTORS CORP.