DTC Troubleshooting
TROUBLESHOOTING CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | DTC check
Is there any CAN-DTC(s) detected? |
Go to applicable DTC diag. flow. See CAN DTC (LOST COMMUNICATION AND COMMUNICATION BUS OFF) TABLE | Replace combination meter and recheck DTC. If DTC P0649 is still detected, substitute a known-good ECM and recheck. |