The automobile fault code P1049 indicates a problem with the Reductant Injector in the vehicle.

This can be identified by the Engine Light being ON or the Service Engine Soon Warning Light appearing. The cause of this fault code could be a faulty Reductant Injector, an open or shorted Reductant Injector harness, a poor electrical connection in the Reductant Injector circuit, or a faulty Engine Control Module (ECM). To fix this issue, it is recommended to visually inspect the wiring harness and connectors related to the Reductant Injector.

Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.

The repair time for this issue is estimated to be around 1.0.

It is important to address this fault code promptly to ensure the proper functioning of the vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1049 fault code.

  • The symptoms of the automobile fault code P1049 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code P1049 can be caused by a faulty reductant injector, open or shorted injector harness, poor electrical connection in the injector circuit, or a faulty Engine Control Module (ECM).

  • The fault code P1049 can be caused by the following: a faulty reductant injector, an open or shorted reductant injector harness, a poor electrical connection in the reductant injector circuit, or a faulty Engine Control Module (ECM).

To fix fault code p1049, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1049, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded pins on the connectors.
  • This fix typically takes around 1.0 hour to complete.

The factors influencing the cost of diagnosing and fixing the automobile fault code p1049 are the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges from $75 to $150.

The P1049 fault code refers to a problem with the Reductant Injector’s high control circuit in the selective catalytic reduction system. This component is responsible for dosing the reductant fluid to the exhaust gas and participating in reduction reactions.

The Engine Control Module (ECM) calculates the injection time based on NOx sensor measurements.

When the Reductant Control Module detects a short to voltage in the high control circuit, it triggers the P1049 code. This means there is a high voltage issue in the circuit that controls the reductant injector.

What are the possible causes for the automobile fault code P1049?

If you see the engine light on or the service engine soon warning light, the fault code P1049 could be the culprit. This code is often caused by a faulty reductant injector, an open or shorted reductant injector harness, a poor electrical connection in the reductant injector circuit, or a faulty engine control module (ECM). To fix this issue, visually inspect the wiring harness and connectors, checking for any damage or broken pins. It’s important to address these possible causes to resolve the fault code.

How can I visually inspect the wiring harness and connectors to fix the P1049 fault code?

To fix the P1049 fault code, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This can help identify if the reductant injector harness is open or shorted, or if there is a poor electrical connection in the circuit. Also, check for a faulty reductant injector or engine control module.

What should I look for when checking for damaged components or corroded connector pins to resolve the P1049 fault code?

When resolving the P1049 fault code, start by checking for damaged components or corroded connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any broken, bent, pushed out, or corroded pins. These issues can cause a poor electrical connection or an open/short circuit, leading to the faulty reductant injector or a malfunctioning engine control module. By addressing these possible causes, you can effectively fix the issue and turn off the engine light or service engine soon warning light.

p1049 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the issue could be a faulty Reductant Injector or a problem with the wiring harness or connectors. To fix it, visually inspect the wiring and connectors for any damage, and check for broken or corroded pins.

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