Mazda MX-5 NA silhouetteMX-5 NA

LIGHTING SYSTEM

T-51prose procedure

Symptom verification — Headlight retractor motors do not operate

Headlight switch ON
Retractor motor(s) operateYes
ActionBegin troubleshooting from Step 5
Headlight switch ON
Retractor motor(s) operateNo
ActionNext, turn ON retractor switch
Retractor switch ON
Retractor motor(s) operateYes
ActionBegin troubleshooting from Step 1
Retractor switch ON
Retractor motor(s) operateNo
ActionBegin troubleshooting from Step 1

Headlight retractor motors do not operate (both sides)

  1. 1
    Check RETRACT 30A and HEAD 30A fuses in the main fuse block. If a fuse is burned, replace it. Check and repair the wire harness, if necessary. If the fuses are OK, go to Step 2.
    Photograph of the main fuse block with callouts labeling 'HEAD 30A' (top), 'MAIN FUSE BLOCK' (right), and 'RETRACTOR 30A' (bottom-left). Illustrates Step 1 — checking the HEAD 30A and RETRACTOR 30A fuses.
    05U0TX-097
  2. 2
    Retract the headlights fully using the manual knobs. Disconnect the retractor motor connectors. Turn on the headlight switch and retractor switch. Measure the voltage at the following terminal-wires of the retractor motor connectors.
    Voltmeter test setup at the retractor motor connector. The disconnected connector is shown at top-left with the (R/Y) wire callout, and a voltmeter is connected to the harness side. Illustrates Step 2 voltage measurement.
    05U0TX-098
  3. 3
    Disconnect the retractor motor connectors. Check for continuity between terminal-wire (B) of the retractor motor connectors and a body ground.
    Continuity test setup at the retractor motor connector. The disconnected connector at top-left has the (B) wire callout; the ohmmeter probe is connected between the connector terminal and a body ground point. Illustrates Step 3 — continuity check.
    05U0TX-099

Step 2 — Retractor motor voltage measurement

Left and Right
Wire(R/Y)
Voltage12V
ActionGo to Step 3
Left and Right
Wire(R/Y)
Voltage0V
ActionGo to Step 4

Step 3 — Retractor motor continuity check

Left and Right
ContinuityNo
ActionRepair wire (B)
Left and Right
ContinuityYes
ActionCheck retractor motor (Refer to page T—56)

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