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A/C Amplifier Inspection: Notes

WARNING: This page is about a different car, the 2003 Mazda Protege5 and 2003 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • A/C amplifier controls A/C signal as shown in the figure at right.
  1. Remove the glove compartment.
  2. Pull out the A/C amplifier with the connector still connected.
  3. Turn the ignition switch to ON position.
  4. Measure the voltage at each A/C amplifier terminal or climate control unit terminal and refer to the terminal voltage list.
    • If not as specified, inspect the parts listed under "Action" and the related wiring harness.
    • If there is no malfunction under "Action", replace the A/C amplifier.
    Fig 1: A/C Signal On-Off Operation Diagram
    G01914733Courtesy of MAZDA MOTORS CORP.