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P1048 Buick Code - Reductant Injector High Control Circuit Low Voltage

- Code Popularity: 189 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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Code P1048 Buick 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 P1048 Buick?

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 Buick have Safety Recalls? → Check here

What is the Cost to Diagnose the Code P1048 Buick?

Labor: 1.0

The cost of diagnosing the P1048 Buick 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 P1048 Buick Possible Symptoms?

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

Code P1048 Buick 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 ground in the high control circuit.

OBDII Code P1048 Buick - Reductant Injector High Control Circuit Low Voltage -
P1048 Buick Code - Reductant Injector High Control Circuit Low Voltage

Need More Information on the P1048 Buick Code?

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Code P1048 Buick comments

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