P1679 Chevrolet Code - Immobilizer Environment Identification Failed
Quick Answer
The P1679 Chevrolet code indicates that the immobilizer environment identification has failed. Common causes include Faulty key or key fob, Communication issue between immobilizer system and ECM, Faulty immobilizer system. 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
- P1679 Chevrolet indicates Immobilizer Environment Identification Failed.
- Common causes
- Common causes include Faulty key or key fob, Communication issue between immobilizer system and ECM, Faulty immobilizer system.
- 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.
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Code P1679 Chevrolet Description
The P1679 Chevrolet code indicates that the immobilizer environment identification has failed. The immobilizer system is a security feature in modern vehicles that prevents the engine from starting unless the correct key or electronic key fob is used. The immobilizer environment identification is a process where the vehicle's immobilizer system communicates with the engine control module (ECM) to ensure that the correct key is being used and that the vehicle can be started.
Common Causes of P1679 Chevrolet
- Faulty key or key fob
- Communication issue between immobilizer system and ECM
- Faulty immobilizer system
- Faulty ECM
- Wiring or connection issues
Symptoms of P1679 Chevrolet
- Engine cranks but does not start
- Engine stalls shortly after starting
- Immobilizer warning light illuminated on the dashboard
- Engine starts but immediately shuts off
How to Fix P1679 Chevrolet
- Check the key or key fob for any damage or malfunction. Replace if necessary.
- Inspect wiring and connections between the immobilizer system and ECM. Repair any damaged wires or connections.
- Use a diagnostic scanner to reset the immobilizer system and ECM. Relearn the key to the immobilizer system.
- If the issue persists, consider replacing the immobilizer system or ECM, depending on which component is determined to be faulty.
- Test the vehicle to ensure the issue has been resolved and that the immobilizer system is functioning correctly.
Cost to Fix P1679 Chevrolet
The cost of repairing a P1679 Chevrolet code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the cost of parts for this repair can range from $100 to $500, with labor costs adding an additional $100 to $300. Overall, the total cost of repairing this issue may range from $200 to $800. It is important to note that these are rough estimates, and actual costs may vary based on the vehicle's make and model, the location of the repair shop, and the extent of the repairs needed. It is recommended to obtain quotes from multiple repair shops to get a more accurate cost estimate.
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