Silverado Classic 1500 2WD V6-4.3L (2007)
Step 48 - Step 50
The numbers below refer to the step numbers on the diagnostic table.
3. This step tests for a CKP signal to the PCM.
4. This step tests for an internally shorted CMP sensor.
9. This step tests for spark output at more than one spark plug wire. The J 26792 Spark Plug Tester requires a minimum of 25,000 volts to operate.
10. This step determines if spark is being delivered to the distributor cap.
20. This step tests if the PCM is providing a timing control signal to the ICM.
21. This step tests for a basic engine mechanical condition.
