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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System & Fuel System - 1.8L (Lay) - Troubleshooting & Diagnosis) >> Fuel Pump Electrical Circuit Diagnosis >> Component Testing

Component Testing

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  1. Ignition OFF, disconnect the circuit opening relay.
  2. Test for 85-120 ohms at 20°C (68°F) between terminals 1 and 2.
    • If the resistance is not within the specified range, replace the relay.
  3. Test for infinite resistance between the following terminals:
    • 5 and 1
    • 5 and 2
    • 5 and 3
    • 1 and 3
    • If not the specified range, replace the relay.
  4. Install a 20A fused jumper wire between relay terminal 1 and 12 volts. Install a jumper wire between relay terminal 2 and ground. Test for less than 2 ohms between terminals 5 and 3.
    • If greater than the specified range, replace the relay.