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Home >> Suzuki >> 1989 >> Sidekick JA, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests >> Relays & Solenoids >> Relays >> Control Relay
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Control Relay

  1. For terminal and circuit reference, see wiring diagram in WIRING DIAGRAMS article. Locate control relay under left side of dash. Relay uses a 10-wire 2-connector unit. With ignition on, check for battery voltage at terminals "B" and "F" of relay. If battery voltage is not present, check 15-amp fuse in fuse box. This same fuse also powers ignition coil and ignition module in distributor. If fuse is okay, check for open or short to ground in Black/White wire between fuse box and control relay.
  2. Crank ignition and check for battery voltage at terminal "H". Battery voltage should be present while cranking. If not, check for open or short in Black/Yellow wire between starter and control relay. Turn ignition off.
    NOTE: The remaining steps test the relay as a separate unit. All terminals listed refer to control relay terminals and not harness terminals.
  3. Disconnect relay connector. Using an ohmmeter, check for continuity between terminals "B" and "D" of relay. There is a diode present in this circuit, so continuity should be checked in both directions by reversing ohmmeter leads. If continuity does not exist in one direction, replace relay.
  4. Check continuity between terminals "I" and "F", and then between "J" and "H". If continuity does not exist, replace relay. Energize solenoid by applying battery voltage to terminal "B" and ground to terminal "D". Check for voltage at terminals "C" and "E". If battery voltage does not exist, replace control relay.
  5. Energize solenoid by applying battery voltage to terminal "F" and ground to terminal "I". Check for voltage at terminal "G". If battery voltage does not exist, replace control relay.
  6. Energize solenoid by applying battery voltage to terminal "H" and ground to terminal "J". Check for voltage at terminal "G". If battery voltage does not exist, replace control relay.
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