Auto Shutdown (ASD) Relay

1995 Dodge and Ram Pickup R3500, 2D Pickup, 8.0 W, RWD, AutomaticSECTION Auto Shutdown (ASD) Relay
  1. ASD relay is located in engine compartment. Relay terminal numbers are stamped on bottom of relay. Relay must be disconnected for testing. If any of the following resistance and continuity tests fail, replace relay.
  2. Using an ohmmeter, measure resistance between terminals No. 85 and 86. Resistance should be 70-80 ohms.
  3. Connect ohmmeter between terminals No. 87A and 30. Continuity should exist. Connect ohmmeter between terminals No. 87 and 30. Continuity should not exist.
  4. Using a pair of jumper wires, connect a jumper wire between terminal No. 85 and battery ground. Connect other jumper wire to battery positive terminal, but DO NOT connect to relay yet.
    CAUTION: DO NOT allow ohmmeter to contact terminal No. 85 or 86 during following test. Damage to ohmmeter may result.
  5. Attach other jumper wire to relay terminal No. 86 to activate relay. Continuity should exist between terminals No. 87 and 30, but not between terminals No. 87A and 30. Disconnect jumper wires from battery and relay.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.