Mazda MX-3 silhouetteMX-3

Air Conditioner — Relays: Removal / Installation, Inspection

G-70prose procedure

RELAYS

Removal / Installation

Relays — Removal / Installation

  1. 1
    Remove the relays from the relay bracket.
    Underhood/installed view showing the A/C relays mounted on the relay bracket with their connectors and rubber relay boots, and the surrounding wiring harness.
  2. 2
    Disconnect the relay connector and remove the relays.
  3. 3
    Install in the reverse order of removal. Lower the relay boots after connecting the relay connector.

Inspection

Relays — Inspection

  1. 1
    Remove the relays.
  2. 2
    Check for continuity between the relay terminals.
    Relay internal schematic and connector terminal layout. Left: coil between terminals A and B and a switch contact between terminals C and D, with terminals labelled A and C at top, B and D at bottom. Right: the connector face view showing terminal positions C/A (top row) and D/B (bottom row).
B+: Battery positive voltage

Relay Continuity

—
Connection GND—
Terminal AO
Terminal BO
Terminal C
Terminal D
A
Connection GNDB
Terminal A
Terminal B
Terminal CO
Terminal DO
O–O : Continuity
3. If not as specified, replace the relay.
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