Mazda MX-5 NA silhouetteMX-5 NA

BLOWER UNIT

U-22parts diagram
Continued from U-21

Disassembly / Assembly

Disassemble and assemble as shown in the figure.
Parts DiagramFig. fig1
Parts diagram
#Part NameNotes
1Blower motor—
2Resistor assembly—
3REC-FRESH door—

Inspection

Blower motor

Blower motor inspection

  1. 1
    Verify that the blower motor runs when connecting 12V to terminal a and grounding terminal b.
    Blower motor inspection test. Shows the blower motor connector with two terminals labelled 'a' (power) and 'b' (ground) for the 12 V continuity verification described in step 1.
    05U0UX-038
  2. 2
    If the blower motor does not run, replace it.

Resistor assembly

Resistor assembly inspection

  1. 1
    Check for continuity between terminals of the resistor assembly.
    Set the ohmmeter to the x1,000 range.
    Resistor assembly continuity test illustration. Shows the resistor body mounted on the blower housing with four labelled terminals (Hi, Mh, Me, Lo) and the common terminal C, used for checking continuity per the table on the right side of the page.
    05U0UX-039
  2. 2
    If not as specified, replace the resistor assembly.

Resistor assembly continuity

C—Lo
ContinuityYes
C—Me
ContinuityYes
C—Mh
ContinuityYes
C—Hi
ContinuityYes
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