Engine-Codes - Generic - P0B09

P0B09 - Auxiliary Transmission Fluid Pump Motor Supply Voltage Circuit/Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0B09 Possible Causes

  • Faulty Auxiliary Transmission Fluid Pump
  • Auxiliary Transmission Fluid Pump harness is open or shorted
  • Auxiliary Transmission Fluid Pump circuit poor electrical connection

How is the P0B09 code repair?

Start by checking 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.

What is the cost to diagnose the P0B09 code

Labor: 1.0

The cost to diagnose the P0B09 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

P0B09 Meaning

The Engine Control Module (ECM) monitors the Auxiliary Transmission Fluid Pump Motor. The ECM sets the OBDII code when the Auxiliary Transmission Fluid Pump Motor signal is out of factory specifications.

More Information

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Information for specific makes

  • P0B09 BUICK Auxiliary Transmission Fluid Pump Supply Voltage Relay Control Circuit
  • P0B09 CADILLAC Auxiliary Transmission Fluid Pump Supply Voltage Relay Control Circuit
  • P0B09 CHEVROLET Auxiliary Transmission Fluid Pump Supply Voltage Relay Control Circuit
  • P0B09 GMC Auxiliary Transmission Fluid Pump Supply Voltage Relay Control Circuit

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