P0679
P0679: Engine Control Module (ECM) Output Circuit Malfunction
📖 What Does P0679 Mean?
Symptoms
- • Rough engine idle
- • poor engine performance
- • decreased fuel efficiency
- • and potentially a check engine light.
Common Causes
- • Faulty ECM output circuit
- • damaged or corroded wiring
- • or a malfunctioning ECM.
Possible Solutions
1. Check the wiring and connectors for damage or corrosion and repair or replace as needed. 2. Inspect the ECM for any signs of physical damage or malfunction and replace if necessary. 3. Use a scan tool to clear any trouble codes and test the engine to ensure proper operation.
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❓ Common Questions About P0679
Can I drive with code P0679?
You can drive for a short time, but should address code P0679 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P0679?
The estimated repair cost for code P0679 is between $100 and $500. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.
Required Parts
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with P0679
P0677: Computer Output Circuit Malfunction
P0678: Engine Control Module (ECM) Output Circuit Malfunction
P0680: Engine Control Module (ECM) Output Circuit Malfunction
P0681: Engine Control Module (ECM) Output Circuit Malfunction
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system