Engine-Codes - Chevrolet - P1048 2014 Chevrolet Silverado

P1048 2014 Chevrolet Silverado Code - Reductant Injector High Control Circuit Low Voltage

- Code Popularity: 214 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1048 2014 Chevrolet Silverado?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Reductant Injector
  • Reductant Injector harness is open or shorted
  • Reductant Injector circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

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How to Fix the DTC P1048 2014 Chevrolet Silverado?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1048 2014 Chevrolet Silverado code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P1048 2014 Chevrolet Silverado Code Mean?

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 ground in the high control circuit.

P1048 2014 Chevrolet Silverado Code - Reductant Injector High Control Circuit Low Voltage

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