EPS Control Module Internal Fault
1995-2005 Pontiac Sunfire 2.2L I4
Description
The electric power steering control module has detected an internal error.
Symptoms
- EPS warning light
- Reduced or no power steering assist
- EPS assist may be intermittent
- Warning message on dash
Common Causes
- EPS module internal component failure
- Module overheating
- Software error
- Power supply voltage spike or drop
Diagnostic Steps
- Check module power supply voltage
- Inspect module grounds
- Check for module overheating
- Attempt module reset by cycling ignition
- Check for software update availability
Repair Notes
Replace EPS control module. Program and calibrate after installation.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0220 on Other Vehicles
Pontiac Aztek
2001-2005 3.4L V6
Pontiac Bonneville
2000-2005 3.8L V6
Pontiac Bonneville GXP
2000-2005 4.6L V8
Pontiac Bonneville GXP
2000-2005 4.6L V8 Northstar
Pontiac Firebird
1998-2002 3.8L V6
Pontiac Firebird
1998-2002 5.7L V8 LS1
Pontiac Firebird Trans Am
1998-2002 5.7L V8 LS1
Pontiac Firebird Trans Am WS6
2002-2002 5.7L V8 LS1
Common Questions
What does code C0220 mean on a 1995-2005 Pontiac Sunfire?
C0220 stands for "EPS Control Module Internal Fault". The electric power steering control module has detected an internal error.
What are the symptoms of C0220 on a Pontiac Sunfire?
Common symptoms of C0220 include: EPS warning light, Reduced or no power steering assist, EPS assist may be intermittent, Warning message on dash.
What causes C0220 on a 1995-2005 Pontiac Sunfire?
Common causes of C0220 include: EPS module internal component failure, Module overheating, Software error, Power supply voltage spike or drop.