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1.Disconnect the negative battery terminal and wait for 1 min or more. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)

2.Remove the steering wheel. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [(US)].)

3.Measure the resistance between cruise control switchs 3E, 3F and 3G under the following condetion :

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• If not within the specification, replace the cruise control switch. (See CRUISE CONTROL SWITCH REMOVAL/INSTALLATION [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM].)

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4.Apply battery positive voltage to cruise control switch terminal 3N and connect terminal 3B to ground.

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5.Verify that the LED illuminatates.

• If the LED does not illuminate, replace the cruise control switch. (See CRUISE CONTROL SWITCH REMOVAL/INSTALLATION [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM].)