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1978 Models

  1. Remove relay from vehicle. On Pickups, apply 12 volts across terminals No. 4 and 5. See Fig 2. With voltage applied, no continuity should exist between terminals No. 1 and 3. Continuity should exist between terminals No. 1 and 2. If not, replace relay.
  2. On all other models, check relay for continuity between terminals No. 2 and 4. See Fig 2. Apply 12 volts across terminals No. 5 and 6. With voltage applied, no continuity should exist between terminals No. 2 and 4. If results are incorrect, replace relay.
    Fig 1: 1977 Automatic Choke Relay Terminals
    G09313102Courtesy of NISSAN NORTH AMERICA, INC.
    Fig 2: 1978 Automatic Choke Relay Terminals
    G09313103Courtesy of NISSAN NORTH AMERICA, INC.