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P1049 Chevrolet Code - Reductant Injector High Control Circuit High Voltage

- Code Popularity: 820 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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Code P1049 Chevrolet Possible Causes

  • Faulty Reductant Injector
  • Reductant Injector harness is open or shorted
  • Reductant Injector circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How do I Fix the Code P1049 Chevrolet?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Chevrolet have Safety Recalls? → Check here

Code P1049 Chevrolet Tech Notes

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What is the Cost to Diagnose the Code P1049 Chevrolet?

Labor: 1.0

The cost of diagnosing the P1049 Chevrolet code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

What are Code P1049 Chevrolet Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1049 Chevrolet Description

The Reductant Injector is a component of selective catalytic reduction system used to dose the reductant fluid to the exhaust gas and participate in the reduction reactions. The Engine Control Module (ECM) calculates the injection time of the reductant injector based on the measurement of the NOx sensors. To activate the injector the ECM supplies a PWM signal to the high control circuit and the low control circuit is always commanded ON. The Diagnostic Trouble Code (DTC) will be set when the Reductant Control Module detects a short to voltage in the high control circuit.

OBDII Code P1049 Chevrolet - Reductant Injector High Control Circuit High Voltage -
P1049 Chevrolet Code - Reductant Injector High Control Circuit High Voltage

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Code P1049 Chevrolet comments

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