Cause
Second hand module locked to another vehicle
A used module carrying the configuration of the car it came out of. A matching part number does not settle it, and many modules lock permanently to the first vehicle they are programmed to — so a second-hand part can be unusable regardless of condition. No part fixes this; it is programming.
Typically specialist work. Needs equipment or training most home workshops do not have.
Some of these codes mean you should stop driving
3 of the 65 codes this can cause indicate a fault where continuing to drive risks damage or is unsafe. Which one you have matters more than the cause does — read the code's own page before deciding.
Codes this can cause (65)
Codes where this is a likely explanation first, rather than merely a possible one.
- P0602 Control Module Programming Error Likely for this code High
- P0614 Engine Control Module/Transmission Control Module Incompatible Likely for this code High
- P0630 VIN Not Programmed or Incompatible — Engine Control Module Likely for this code Moderate
- P0631 VIN Not Programmed or Incompatible — Transmission Control Module Likely for this code Moderate
- P0633 Immobiliser Key Not Programmed — Engine Control Module Likely for this code Stop driving High
- U0178 Lost Communication With Restraints System Sensor I Likely for this code High
- U0301 Software Incompatibility With Engine Control Module Likely for this code High
- U0302 Software Incompatibility With Transmission Control Module Likely for this code High
- U0303 Software Incompatibility With Transfer Case Control Module Likely for this code Moderate
- U0304 Software Incompatibility With Gear Shift Control Module A Likely for this code High
- U0307 Software Incompatibility With Glow Plug Control Module 1 Likely for this code Moderate
- U0310 Software Incompatibility With Fuel Pump Control Module Likely for this code Moderate
- U0312 Software Incompatibility With Battery Energy Control Module A Likely for this code High
- U0313 Software Incompatibility With Battery Energy Control Module B Likely for this code High
- U0314 Software Incompatibility With Four-Wheel Drive Clutch Control Module Likely for this code Moderate
- U0315 Software Incompatibility With Anti-Lock Brake System (ABS) Control Module Likely for this code High
- U0316 Software Incompatibility With Vehicle Dynamics Control Module Likely for this code High
- U0317 Software Incompatibility With Park Brake Control Module Likely for this code Moderate
- U0318 Software Incompatibility With Brake System Control Module A Likely for this code High
- U0319 Software Incompatibility With Steering Effort Control Module Likely for this code Moderate
- U0320 Software Incompatibility With Power Steering Control Module Likely for this code Moderate
- U0321 Software Incompatibility With Suspension Control Module A Likely for this code Moderate
- U0322 Software Incompatibility With Body Control Module Likely for this code Moderate
- U0323 Software Incompatibility With Instrument Panel Control Module Likely for this code High
- U0324 Software Incompatibility With HVAC Control Module Likely for this code Moderate
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
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