What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P3191Engine Does Not StartP3191Engine Does NOT StartManufacturer communications
8Original wording in English
TOYOTA
Reported code forms P3191
Dealer Package: 09/30/19 A watermark has been added to the Dealer Letter to indicate that ZTI expired on September 30, 2019. In our continuing efforts to assure the best in customer satisfaction, Toyota will initiate a…
TOYOTA
Reported code forms P3191
TSB: Some 2010 - 2013 model year Prius and 2012 - 2013 model year Prius V vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code(s) (DTCs) P0A0F (Engine Failed to Start), caused by Purge VSV/PCV line…
LEXUS
Reported code forms P3191
LSB: Some 2011 - 2013 model year CT 200h vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0A0F (Engine Failed to Start), caused by Purge VSV/PCV line separation from the throttle body…
TOYOTA
Reported code forms P3191
Some 2010-2011 model year Prius vehicles may exhibit a MIL "ON" condition with DTCs P3190, P3191, P0A0F, and/or purge VSV/PCV line separation from the throttle body housing.
TOYOTA
Reported code forms P3191
TOYOTA: TO ADDRESS THE CONDITION OF DIAGNOSTIC TROUBLE CODES (DTCS) THAT SOME VEHICLES ARE EXHIBITING (P0A0F, P3190, AND P3191), ENGINE CONTROL MODULE/ECM (SAE TERM: POWERTRAIN CONTROL MODULE/PCM) LOGIC WAS REVISED. *PE…
TOYOTA
Reported code forms P3191
MASTER, HYBRID, AND MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES (DTC) P3190, P3191 AND P3101. *TT UPDATED 10/26/07. *NJ
Check vehicle applicability
14A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Lexus | CT HYBRID | 2013 |
| Lexus | CT HYBRID | 2012 |
| Lexus | CT HYBRID | 2011 |
| Toyota | PRIUS | 2013 |
| Toyota | PRIUS | 2012 |
| Toyota | PRIUS | 2011 |
| Toyota | PRIUS | 2010 |
| Toyota | PRIUS | 2005 |
| Toyota | PRIUS | 2004 |
| Toyota | PRIUS | 2003 |
| Toyota | PRIUS | 2002 |
| Toyota | PRIUS | 2001 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.