P0604 Toyota Code - ECM Random Access Memory Error
Quick Answer
The Engine Control Module (ECM) continuously monitors its internal memory status. Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0604 Toyota indicates ECM Random Access Memory Error.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0604 Toyota Description
What are the Possible Causes of the DTC P0604 Toyota?
- Faulty Engine Control Module (ECM)
- Engine Control Module harness is open or shorted
- Engine Control Module circuit poor electrical connection
How to Fix the DTC P0604 Toyota?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0604 Toyota code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0604 Toyota code?
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Information for Specific Toyota Models
- P0604 2006 Toyota Camry — Internal Control Module Random Access Memory Error
- P0604 2007 Toyota Camry — Internal Control Module Random Access Memory Error
- P0604 2008 Toyota Camry — Internal Control Module Random Access Memory Error
- P0604 2009 Toyota Camry — Internal Control Module Random Access Memory Error
- P0604 2010 Toyota Camry — Internal Control Module Random Access Memory Error
- P0604 2011 Toyota Camry — Internal Control Module Random Access Memory Error
- P0604 2001 Toyota Highlander — Internal Control Module Random Access Memory Error
- P0604 2002 Toyota Highlander — Internal Control Module Random Access Memory Error
- P0604 2003 Toyota Highlander — Internal Control Module Random Access Memory Error
- P0604 2004 Toyota Highlander — Internal Control Module Random Access Memory Error
- P0604 2005 Toyota Highlander — Internal Control Module Random Access Memory Error
- P0604 2006 Toyota Highlander — Internal Control Module Random Access Memory Error
- P0604 2007 Toyota Highlander — Internal Control Module Random Access Memory Error
- P0604 2004 Toyota Prius — Internal Control Module Random Access Memory Error
- P0604 2005 Toyota Prius — Internal Control Module Random Access Memory Error
- P0604 2006 Toyota Prius — Internal Control Module Random Access Memory Error
- P0604 2007 Toyota Prius — Internal Control Module Random Access Memory Error
- P0604 2008 Toyota Prius — Internal Control Module Random Access Memory Error
- P0604 2009 Toyota Prius — Internal Control Module Random Access Memory Error
- P0604 2013 Toyota RAV4 — ECM Random Access Memory Error
- P0604 2014 Toyota RAV4 — ECM Random Access Memory Error
- P0604 2015 Toyota RAV4 — ECM Random Access Memory Error
- P0604 2016 Toyota RAV4 — ECM Random Access Memory Error
- P0604 2017 Toyota RAV4 — ECM Random Access Memory Error
- P0604 2018 Toyota RAV4 — ECM Random Access Memory Error
Frequently Asked Questions about P0604 Toyota Code
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