Second and Third Gear Only - D4
WARNING: This page is about a different car, the 2006 GMC Sierra and 2006 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Second and Third Gear Only - D4
| Checks |
Cause |
1-2 Solenoid (313)
Check for DTCs. |
- Stuck Off
- Loose connector
- No voltage to the solenoid
- Solenoid O-ring failure
- No PCM signal to the solenoid
|
| 1-2 Shift Valve (314) |
Stuck |
| PCM |
Failed |
| Check the PCM for current DTCs. |