Cruise Control Switch Inspection

WARNING: This page is about a different car, the 2014 Mazda 6. 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. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)
Disconnect the clock spring connector (part wiring harness-side).

Measure the resistance between clock spring terminals E and A (part wiring harness-side) using a tester.

Fig 1: Cruise Control Switch - Circuit Diagram

Courtesy of MAZDA MOTORS CORP.

If as specified, go to the next step.
If not as specified, replace the steering switch. (See STEERING SWITCH REMOVAL/INSTALLATION .)

Switch condition	Resistance (ohm)
Cruise OFF switch held at on	Continuity
CANCEL switch held at on	Approx. 84.5
SET (-) switch held at on	Approx. 189.5
SET (+) switch held at on	Approx. 326.5
RESUME switch held at on	Approx. 506.5
Cruise ON switch held at on	Approx. 761.5
Neutral	Approx. 3, 311.5

Apply battery positive voltage to clock spring terminal F (part wiring harness-side), and terminal B (part wiring harness-side) to ground.
Verify that the LED illuminates.
- If the LED does not illuminate, replace the steering switch. (See STEERING SWITCH REMOVAL/INSTALLATION .)
  
  Fig 2: Energizing Clock Spring
  Courtesy of MAZDA MOTORS CORP.