Code 43, Knock Sensor Without Spark Module (Dual Sensors): Notes
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1995 GMC Vandura, 1995 GMC Rally, 1995 GMC Pickup, 1995 Chevrolet Sportvan, and 1995 Chevrolet Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Test numbers refer to test numbers on diagnostic chart.
- Tests for 5-volt signal applied by control module.
- An improperly installed sensor can prevent knock sensor from grounding to block.