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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 8 (ENGINE CONTROLS AND FUEL - 2.2L (L61) - DTC P0016 TO DTC P0420)DTC P0230COMPONENT TESTING
2008 Chevrolet HHR LT, 2.4 P, Automatic

Component Testing

2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Component Testing
WARNING: This page is about a different variant/trim than selected.

Relay Test 

  1. Ignition OFF, disconnect the fuel pump relay.
  2. Test for 70-110 ohms between terminals 85 and 86.
    • If the resistance is not within the specified range, replace the relay.
  3. Test for infinite resistance between the following terminals:
    • Terminals 30 and 86
    • Terminals 30 and 87
    • Terminals 30 and 85
    • Terminals 85 and 87
    • If not the specified value, replace the relay.
  4. Test for less than 2 ohms between terminals 30 and 87 A.
    • If greater than the specified range, replace the relay.
  5. Install a 15A fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground. Test for less than 2 ohms between terminals 30 and 87.
    • If greater than the specified range, replace the relay.
RENDER: 1.0x

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When to See a Mechanic

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

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