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Home >> Saab >> 2002 >> 9-3 SE, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Modules, Relays & Solenoids >> Relays >> Main Relay
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Main Relay

  1. Remove main relay from instrument panel relay block. See Figure or Figure . Measure resistance between main relay terminals No. 4 and No. 5. Resistance should be 80-90 ohms at 68°F (20°C). If resistance is not as specified, replace relay. Check for continuity between relay terminals No. 1 and 2. If continuity is not present, go to next step. If continuity is present, replace relay.
  2. Using jumper wires, apply battery voltage to terminal No. 4 and ground to terminal No. 5. See Figure. Check for continuity between relay terminals No. 1 and 2. If continuity is not present, replace relay. If continuity is present, inspect associated wiring for short or open circuits. See WIRING DIAGRAMS article. Repair wiring as necessary.
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