Mazda MX-5 NA silhouetteMX-5 NA

WARNING LAMP AND SENDER UNIT

T-41prose procedure

Remedy

Remedy — Brake warning lamp not on with parking brake

  1. 1
    Disconnect the parking brake switch connector.
    Photo of the parking brake switch with multimeter leads connected to the switch terminal and a body ground for continuity testing.
    05U0TX-291
  2. 2
    Check continuity between the terminal of the switch and a body ground.
  3. 3
    If not as specified, adjust or replace the parking brake switch.
  4. 4
    If the switch is OK, repair the wiring harness.

Parking brake switch continuity

Pulled one notch
ContinuityYes
Released
ContinuityNo

Remedy

Remedy — Brake warning lamp not on with low fluid

  1. 1
    Disconnect the brake fluid level sensor connector.
    Photo of the brake fluid reservoir with multimeter leads connected to the fluid level sensor for continuity testing.
    05U0TX-293
  2. 2
    Check continuity of the brake fluid level sensor.
  3. 3
    If not as specified, replace the level sensor.
  4. 4
    If the sensor is OK, repair the wiring harness.

Brake fluid level sensor continuity

Below MIN
ContinuityYes
Above MIN
ContinuityNo

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