1. Disconnect the negative battery cable..
2. Remove the inner garnish..
3. Remove the tweeter..
4. Verify the resistance between tweeter terminals.

If not within the specification, replace the tweeter.

Without Bose®: 3.4—4.6 ohms
With Bose®: 3.06—3.74 ohms
Supplier Identification Procedure [Audio]
Tweeter Removal/InstallationCustomer Assistance (Mexico)
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Authorized Mazda Dealers have the knowledge and the tools to keep your Mazda
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Power Steering Fluid Line Component Removal/Installation
NOTE:
The following procedure is for replacement of the parts shown in the figure.
Regarding replacement of the suction hose and return hose, refer to the electric
power steering oil pump component removal/installation..
Power Steering Pipe Component Removal/Installation
NOT ...
Knock Sensor (Ks) Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the KS connector.
4. Measure the resistance between KS terminals A and B.
If not as specified, replace the KS..
Specification
Approx. 4.87 megohms [normal tem ...