The automobile fault code P1649 is indicated by the Engine Light being ON or the Service Engine Soon Warning Light. This code is typically caused by a faulty Engine Control Module (ECM), an open or shorted ECM harness, or a poor electrical connection in the ECM circuit.
To fix this issue, it is important to visually inspect the wiring harness and connectors for any damage. Look out for broken, bent, pushed out, or corroded pins in the connectors.
The repair time for this fault code is estimated to be around 1.0 hour.
It is recommended to check the “Possible Causes” mentioned above and perform the necessary checks and repairs to resolve the issue.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Decode The Symptoms: Unveiling The Mystery Of Code P1649
When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1649 fault code.
- The symptoms of the automobile fault code P1649 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.
Unraveling The Mystery: What Causes Fault Code P1649?
The automobile fault code p1649 can be caused by various factors, including a faulty Engine Control Module (ECM) and issues with the ECM harness or circuit connection.
- The causes of the automobile fault code p1649 include: – Failure to perform the Engine Control Module Immobilizer Learn Procedure – A faulty Engine Control Module (ECM) – An open or shorted Engine Control Module harness – Poor electrical connection in the Engine Control Module circuit.
Fixing Code P1649: Simple Steps To Resolve The Issue!
To fix the automobile fault code p1649, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.
- To fix the automobile fault code P1649, follow these steps: 1.
- Check the possible causes mentioned above.
- 2.
- Visually inspect the wiring harness and connectors related to the fault code.
- 3.
- Look for any damaged components.
- 4.
- Check for broken, bent, pushed out, or corroded pins in the connectors.
- The estimated repair time for this fix is 1.0 hour.
Cracking The Code: P1649 – Cost And Complexity Unveiled!
The factors influencing the diagnosis and fixing cost of the automobile fault code P1649 are the estimated repair time of 1.0 hour and the average hourly rate charged by auto repair shops, which ranges between $75 and $150.
P1649 Fault Code: Unveiling The Mystery Behind The Engine Malfunction
The P1649 fault code indicates that the Engine Control Module (ECM) has not successfully learned the security code for the immobilizer system.
This code is set when the ECM fails to complete the learning process for the security code and challengeresponse sequence. The ECM enters learn mode to acquire this information, and once learned, it exits learn mode upon successful engine start. However, if the security code is not programmed correctly, the ECM will trigger the P1649 fault code.
This code serves as a diagnostic trouble code (DTC) to indicate that the ECM has not learned the necessary security code.
FAQ
If you see the engine light on or the service engine soon warning light, the fault code P1649 might be the culprit. This code can be caused by a few things, including a faulty engine control module (ECM), an open or shorted ECM harness, or a poor electrical connection in the ECM circuit. To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any signs of damage or corrosion. Additionally, check for any broken, bent, pushed out, or corroded pins in the connectors.
If you’re dealing with the P1649 fault code and your engine light is on, it’s time to take action. The cause could be a faulty Engine Control Module (ECM) or an open or shorted ECM harness. To fix it, start by performing the Engine Control Module Immobilizer Learn Procedure. Then, visually inspect the wiring harness and connectors for any signs of damage. Look out for broken, bent, pushed out, or corroded pins on the connectors. Don’t delay, get to the bottom of this issue and get your engine running smoothly again.
When resolving the P1649 fault code, start by checking for damaged components and corroded connector pins. Visually inspect the wiring harness and connectors for any signs of damage. Look out for broken, bent, pushed out, or corroded pins on the connectors. These issues can cause poor electrical connections and lead to the engine light being on. By addressing these potential causes, you can effectively fix the problem.
Wrap Up
To fix the P1649 fault code, start by checking the possible causes mentioned above. Visually inspect the wiring harness and connectors for any damage. Look out for broken, bent, pushed out, or corroded pins on the connectors.
This will help resolve the issue and turn off the Engine Light.
