Engine-Codes - Generic - P0045

P0045 Code - Turbocharger/Supercharger Boost Control 'A' Circuit/Open

- Code Popularity: 44,779 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0045?

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 boost pressure/ turbocharger position sensor
  • Boost pressure/ turbocharger position sensor harness is open or shorted
  • Boost pressure/ turbocharger position sensor circuit poor electrical connection
  • Faulty turbocharger/supercharger
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How to Fix the DTC P0045?

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 P0045 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 P0045 Code Mean?

The turbocharger has nozzle vane which opens and closes to control the volume of the exhaust gas flowing into the turbine. This, in turn, controls the boost pressure, when the nozzle vane moves towards the closing direction, the pressure increases. When the vane moves towards the opening direction, the pressure decreases.

P0045 Code - Turbocharger/Supercharger Boost Control 'A' Circuit/Open

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Code P0045 Information for Specific Makes

  • P0045 Acura Turbocharger Wastegate Control Actuator Circuit Malfunction  📷
  • P0045 Chevrolet Turbocharger Vane Position Control Solenoid Control Circuit
  • P0045 Honda Turbocharger Wastegate Control Actuator Circuit Malfunction    📷
  • P0045 Isuzu Turbocharger Boost Control Solenoid Control Circuit

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