Steering Shift Switch Inspection

WARNING:

Handling the air bag module improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the service warnings and cautions before handling the air bag module. (See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .) (See (See AIR BAG SYSTEM SERVICE CAUTIONS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)

NOTE:

When removing the driver-side air bag module, it is necessary to rotate the steering wheel. If the ignition has been switched off with the driver's door closed, the steering wheel will be locked. Perform the procedure from Steps 1- 3 so that the steering wheel will not be locked.

Switch the ignition ON (engine off or on).
Open the driver's door.
Switch the ignition off.
Disconnect the negative battery terminal and wait for 1 min or more. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE REMOVAL [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .) (See (See DRIVER-SIDE AIR BAG MODULE INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
Disconnect the steering shift switch wiring harness connector.

Courtesy of MAZDA MOTORS CORP.
Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION .)
Using a precision flat head screwdriver, release the tab.

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Measure the continuity between steering shift switch wiring harness connector terminals A-B and terminals D-E.

Up switch

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Down switch

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Switch	Terminal	Test condition	Continuity
Up switch	A-B	Up switch is operated (up switch is pulled outward)	Continuity
Up switch	A-B	Up switch is not operated (up switch is not pulled outward)	No continuity
Down switch	D-E	Down switch is operated (down switch is pulled outward)	Continuity
Down switch	D-E	Down switch is not operated (down switch is not pulled outward)	No continuity

If there is any malfunction, replace the steering shift switch. (See STEERING SHIFT SWITCH REMOVAL/INSTALLATION .)