Test Dg: Step 2

2) Check KS Circuit Voltage  Turn key off and wait 10 seconds. Disconnect knock sensor. Inspect for and repair any damaged wiring. Set DVOM on 20-volt scale. With KOEO, measure voltage between KS circuit and SIG RTN at sensor vehicle harness connector. If reading is greater than 4 volts, go to step 5). If reading is 1-4 volts, go to step 6). If reading is less than one volt, go to next step.