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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 508 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - DTC P0420 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0685, P0689, P0690, or P1682 >> Diagnostic Fault Information

Diagnostic Fault Information

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Powertrain Relay

Circuit Short to Ground Open/High Resistance Short to Voltage
Relay Coil Supply Voltage P0685 P0685 -
Relay Control Circuit P0685 P0685, P1682 P0685, P0690, P1682
Relay Feedback Circuit - - P0690
Run/Crank Relay

Circuit Short to Ground Open/High Resistance Short to Voltage
Ignition 1 Signal 1 1 2
1. Will cause a No Crank condition.
2. Engine continues to operate with ignition OFF.
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