Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Engine Running
Verify DTC P0324 is not set.
- If the DTC is set
  Replace the K20 Engine Control Module.
- If the DTC is not set
Ignition OFF.
Verify none of the conditions listed below exist:
- B68 Knock Sensor or wiring harness damage.
- Incorrect B68 Knock Sensor installation. Refer to Fastener Specifications (6.2L LS3)Fastener Specifications (6.2L L99)Fastener Specifications (7.0L LS7)Fastener Specifications (6.2L LSA) .
- B68 Knock Sensor and engine mounting surface burrs, casting flash, and foreign material.
- Close proximity of hoses, brackets, and engine wiring.
- Loose brackets.
- Loose or broken accessory drive belts, brackets, components.
- An engine mechanical condition. Refer to Symptoms - Engine Mechanical .
- Contaminated or poor quality fuel.
- If a condition exists
  Repair or replace as necessary.
- If no conditions exist
Verify the scan tool parameters listed below display No while moving the related harnesses and connectors of the B68 Knock Sensor.
- Cylinder 1 Knock Detected
- Cylinder 2 Knock Detected
- Cylinder 3 Knock Detected
- Cylinder 4 Knock Detected
- Cylinder 5 Knock Detected
- Cylinder 6 Knock Detected
- Cylinder 7 Knock Detected
- Cylinder 8 Knock Detected
- If No is not displayed
  Repair the wiring harness or connectors.
- If No is displayed
Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
- If the DTC sets
  Refer to Circuit/System Testing.
- If the DTC does not set
All OK.