DTC Troubleshooting
DTC TROUBLESHOOTING CHART
| Step |
Action |
Value(s) |
Yes |
No |
| 1 |
Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
.
Is the system check complete? |
- |
Go to Step 2. |
Go to ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
. |
| 2 |
- Turn the ignition switch to LOCK.
- Disconnect the EGR solenoid connector.
- Connect a test light between the EGR connector terminal 2 and the battery positive.
Is the test light ON? |
- |
Go to Step 4. |
Go to Step 3. |
| 3 |
- Repair the wire or the connector terminal between the EGR connector terminal 2 and the ECM connector terminal A11 as needed.
- Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
.
Is the repair complete? |
- |
System OK |
- |
| 4 |
- Connect a test light between the EGR connector terminal 3 and the ECM connector terminal A9.
- Turn the ignition switch to ON.
Is the test light ON? |
- |
Go to Step 6. |
Go to Step 5. |
| 5 |
- Repair the wire or the connector terminal between the EGR connector terminal 3 and the ECM connector terminal A9 as needed.
- Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
.
Is the repair complete? |
- |
System OK |
- |
| 6 |
- Connect a test light between the EGR connector terminal 4 and the ECM connector terminal K118.
- Turn the ignition switch to ON.
Is the test light ON? |
- |
Go to Step 8. |
Go to Step 7. |
| 7 |
- Repair the wire or the connector terminal between the EGR connector terminal 4 and the ECM connector terminal K118 as needed.
- Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
.
Is the repair complete? |
- |
System OK |
- |
| 8 |
- Connect a test light between the EGR connector terminal 5 and the ECM connector terminal A46.
- Turn the ignition switch to ON.
Is the test light ON? |
- |
Go to Step 10. |
Go to Step 9. |
| 9 |
- Repair the wire or the connector terminal between the EGR connector terminal 5 and the ECM connector terminal A46 as needed.
- Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
.
Is the repair complete? |
- |
System OK |
- |
| 10 |
Measure the resistance of the EGR solenoid.
Is the resistance between the specified values? |
7.8 - 8.6 Ω |
Go to Step 2. |
Go to Step 11. |
| 11 |
- Replace the EGR valve.
- Using the scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
.
Is the repair complete? |
- |
System OK |
- |
| 12 |
- Turn the ignition switch to LOCK.
- Replace the ECM.
- Perform an ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK
.
Is the repair complete? |
- |
System OK |
- |