DTC Troubleshooting
DIAGNOSTIC PROCEDURES CHART
| Step |
Action |
YES |
NO |
| 1 |
Was "Engine and Emission Control System Check" performed? |
Go to Step 2. |
Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK . |
| 2 |
Knock sensor signal circuit and ground circuit check
- Confirm that ignition mode of keyless push start system is "OFF".
- Disconnect "C01", "E01" and knock sensor connectors.
- Check for proper terminal connection to "C01", "E01" and knock sensor connectors.
- If connections are OK, check the following points.
- Resistance of "A1" and "A2" circuits: less than 1 Ω
- Resistance of "A1" circuit between knock sensor connector and ground: infinity
- Resistance between "A1" circuit terminal and other terminal at knock sensor connector: infinity
- Voltage of "A1" and "A2" circuits: 0 - 1 V (with ignition mode of keyless push start system in "ON")
Are they in good condition? |
Go to Step 3. |
Repair or replace defective wire harness. |
| 3 |
Knock sensor check
- Check knock sensor, see KNOCK SENSOR INSPECTION
.
Is it in good condition? |
Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION
. |
Replace knock sensor, see KNOCK SENSOR INSPECTION
. |