Engine-Codes - Generic - P0B04

P0B04 - Auxiliary Transmission Fluid Pump Motor Phase V Current Low

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

P0B04 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 do I fix code P0B04?

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.

Cost of diagnosing the P0B04 code

Labor: 1.0

The cost of diagnosing the P0B04 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.

Possible Symptoms

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

P0B04 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.

P0B04 More Information

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