| Subject: | No Start or Rough Idle During Cold Weather, and/or Check Engine Light On with DTC P0606 "Control Module Internal Performance" Set (Replace ECM) | 
| Models: | 2006 Chevrolet Aveo, Optra (Canada Only) | 
| 2006 Pontiac Wave (Canada Only) | 
| Built Prior To and Including the Following VIN Breakpoints: | 
Car Line  | VIN Breakpoint  | 
|---|---|
Chevrolet Aveo (U.S.)  | 6B654252  | 
Chevrolet Aveo (Canada)  | 6B654685  | 
Pontiac Wave (Canada)  | 6B655134  | 
Chevrolet Optra (Canada)  | 6K400699  | 
Some customers may comment that the engine may not start or may be rough at idle during cold weather and/or the Check Engine light may be on.
Technicians may also find a DTC P0606 "Control Module Internal Performance" set.
Replace the engine control module (ECM). Refer to Engine Control Module Replacement in SI.
Part Number  | Description  | 
|---|---|
96436783  | ECM - Aveo/Wave (Manual Trans)  | 
96436784  | ECM - Aveo/Wave (Auto Trans)  | 
96817910  | ECM - Optra (Manual Trans)  | 
96817911  | ECM - Optra (Auto Trans)  | 
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
J6360  | Powertrain Control Module Replacement  | Use Published Labor Operation Time  |