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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 369 (Engine Controls And Fuel - 5.3L, 6.0L & 6.2L - DTC P0010 Through DTC P0442) >> Diagnostic Information and Procedures >> DTC P0230 (Without FPCM) >> Component Testing

Component Testing

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  1. Ignition OFF, disconnect the KR23A fuel pump relay.
  2. Test for 70-110 Ω between terminal 85 and 86
    • If not within the specified range, replace the KR23A fuel pump relay.
  3. Test for infinite resistance between the following terminals:
    • 30 and 86
    • 30 and 87
    • 30 and 85
    • 85 and 87
    • If not the specified value, replace the KR23A fuel pump relay.
  4. Connect a 3 A fused jumper wire between relay terminal 86 and B+. Connect a jumper wire between relay terminal 85 and ground. Test for less than 2 Ω between terminals 30 and 87.
    • If greater than the specified range, replace the KR23A fuel pump relay.
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