Mazda MX-3 silhouetteMX-3

ANTI-LOCK BRAKE SYSTEM

P-72parts diagram

ABS RELAY

Removal / Inspection / Installation

  1. 1
    Disconnect the negative battery cable.
  2. 2
    Remove in the order shown in the figure.
    Exploded view of the ABS relay installation in the engine bay. Numbered balloon callouts: 1 = Bolt (torque 7.9-10.7 N·m {80-110 kgf·cm, 70-95 in-lbf}), 2 = Connector, 3 = ABS relay.
  3. 3
    Install in the reverse order of removal.
  4. 4
    Connect the negative battery cable, verify whether the diagnostic trouble code is canceled. (Refer to page P-56.)
Parts DiagramFig. fig1
#Part NameNotes
1BoltTightening torque 7.9-10.7 N·m {80-110 kgf·cm, 70-95 in-lbf}
2Connector
3ABS relayInspection ... below

Inspection - ABS relay (Fail-safe relay)

  1. 1
    Measure resistance between terminals (c) and (d) of the ABS relay connector.
    ABS relay internal schematic showing fail-safe relay and motor relay coils and contacts with terminals labeled b, d, 9, f, h, a, e, c. Below is the ABS relay connector terminal-position diagram with bottom row h g e d c a and top row f, b.
  2. 2
    Check continuity between terminals (a) and (e) and between (b) and (e).
  3. 3
    Apply 12V to terminals (d) and (c). Check for continuity between terminals (b) and (e) and between (a) and (e).
Resistancebetween terminals (c) and (d)
60-100Ω

Continuity (no voltage applied)

a-e
ContinuityYes
b-e
ContinuityNo

Continuity (12V applied between d and c)

b-e
ContinuityYes
a-e
ContinuityNo
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See also

P-56ANTI-LOCK BRAKE SYSTEM — Memory Cancel / Diagnostic Trouble Code Table

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