Cause
Failed control module
A control module genuinely at fault. Last on every list, for good reason: its supply, earth, connector and the circuits it drives all fail far more often, and a replacement usually needs programming to the vehicle before it will work.
Typically specialist work. Needs equipment or training most home workshops do not have.
Some of these codes mean you should stop driving
12 of the 83 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 (83)
Codes where this is a likely explanation first, rather than merely a possible one.
- P0600 Serial Communication Link Likely for this code Moderate
- P0604 Internal Control Module Random Access Memory (RAM) Error Likely for this code High
- P0605 Internal Control Module Read Only Memory (ROM) Error Likely for this code High
- P0606 Engine Control Module Processor Likely for this code High
- P0607 Control Module Performance Likely for this code High
- P0666 Control Module Internal Temperature Sensor A Circuit Likely for this code Low
- P0667 Control Module Internal Temperature Sensor A Range/Performance Likely for this code Low
- P0668 Control Module Internal Temperature Sensor A Circuit Low Likely for this code Low
- P0669 Control Module Internal Temperature Sensor A Circuit High Likely for this code Moderate
- P0D67 Battery Charger Control Module A Performance Likely for this code High
- P0D70 Air Conditioning Compressor Control Module Internal Temperature Sensor A Circuit Likely for this code Moderate
- P0D71 Air Conditioning Compressor Control Module Internal Temperature Sensor A Performance Likely for this code Moderate
- P0D72 Air Conditioning Compressor Control Module Internal Temperature Sensor A Circuit High Likely for this code Moderate
- P0D73 Air Conditioning Compressor Control Module Internal Temperature Sensor A Circuit Low Likely for this code Moderate
- P0D74 Air Conditioning Compressor Control Module Internal Temperature Sensor A Circuit Intermittent/Erratic Likely for this code Moderate
- P0D75 Air Conditioning Compressor Control Module Output Driver Temperature Sensor Circuit Likely for this code Moderate
- P0D76 Air Conditioning Compressor Control Module Output Driver Temperature Sensor Performance Likely for this code Moderate
- P0D77 Air Conditioning Compressor Control Module Output Driver Temperature Sensor Circuit High Likely for this code Moderate
- P0D78 Air Conditioning Compressor Control Module Output Driver Temperature Sensor Circuit Low Likely for this code Moderate
- P0D79 Air Conditioning Compressor Control Module Output Driver Temperature Sensor Circuit Intermittent/Erratic Likely for this code Moderate
- P0E2D Internal Control Module Hybrid/EV Battery Monitor Performance Likely for this code High
- P0E43 Hybrid/EV Powertrain Control Module B Likely for this code Stop driving High
- P0E5E Battery Charger Control Module A Processor Performance Likely for this code High
- P0E60 Battery Charge Mode Control Circuit Range/Performance Likely for this code High
- P2AB0 Particulate Matter Sensor Processor Performance 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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