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Home >> GMC >> 1997 >> Forward Control 6.5 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Engine Controls - Tests W/Codes - 5.7L) >> Trouble Code Charts >> DTC 43: Knock Sensor Without Spark Module (Dual Sensors) >> Notes

DTC 43: Knock Sensor Without Spark Module (Dual Sensors): Notes

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NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. Tests for 5-volt signal applied by control module.
  2. An improperly installed sensor can prevent knock sensor from grounding to block.
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