| 1 |
Key on, Engine running. Within VCM Live, open the knock sensor DTC parameter, does the knock sensor parameter display 4.9 volts or higher? |
≥ 4.9 volts |
Go to Step 2 |
Intermittent Issue - Refer to Intermittent Diagnostics |
| 2 |
Key OFF. Disconnect the Knock 1 sensor connector and the ECU harness connector "D". Using a DVOM check for continuity between the Knock 1 sensor signal 1 cavity "A" (for both Drive-By-Cable & Drive-By-Wire harnesses) & the ECU connector "D" pin 1 (for both Drive-By-Cable & Drive-By-Wire harnesses). Do you have continuity between them? |
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Go to Step 3 |
Repair the circuit as necessary, locate any wires that need to be repaired or replaced |
| 3 |
Key OFF. Disconnect the Knock 1 sensor connector and the ECU harness connector "D". Using a DVOM check for continuity between the Knock 1 sensor signal 2 cavity "B" (for Drive-By-Cable harness) — cavity "B" is the low reference signal (for Drive-By-Wire) — & the ECU connector "D" pin 8 (for both Drive-By-Cable harness) & connector "D" pin SP3 (for Drive-By-Wire harness). Do you have continuity between them? |
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Go to Step 4 |
Repair the circuit as necessary, locate any wires that need to be repaired or replaced |
| 4 |
Replace Knock 1 sensor. Is the replacement complete? |
|
Go to Step 5 |
N/A |
| 5 |
Clear any DTC from the ECU. Turn the ignition off and wait 30 seconds. Start the engine and operate the engine to full operating temperature. Observe the Check Engine Light on the Menu bar in VCM Live. After operating the engine within the test parameters, check for any stored codes. Does the engine operate without any stored DTCs? |
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System is now operational and ready to be tuned |
Contact HP Tuners Support |