Engine-Codes - Generic - P0B13

P0B13 - Hybrid/EV Battery Low Resolution Current Sensor - High Resolution Current Sensor Not Plausible

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?

P0B13 Possible Causes

  • Faulty Battery Energy Control Module
  • Battery Energy Control Module harness is open or shorted
  • Battery Energy Control Module circuit poor electrical connection

How do I fix code P0B13

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 P0B13 code

Labor: 1.0

The cost of diagnosing the P0B13 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)

P0B13 Meaning

The hybrid/EV battery current sensor is mounted inside the hybrid/EV battery pack. The positive high voltage cable that goes to the positive contactor relay passes through the hybrid/EV battery pack current sensor. The hybrid/EV battery pack current sensor detects the amperage that flows in and out of the hybrid/EV batteries. The battery energy control module supplies and monitors a 5 V reference signal to the hybrid/EV battery pack current sensor. The hybrid/EV battery pack current sensor returns a signal between 0 and 5 V to the battery energy control module. The hybrid/EV battery pack current sensor signal is in proportion to the amperage going in and out of the hybrid/EV battery pack. A signal voltage of the hybrid/EV battery pack current sensor greater than 2.5 V indicates that the hybrid/EV battery is being charged and a signal voltage less than 2.5 V indicates discharging. The hybrid/EV battery pack current sensor has 2 measurement ranges in order to maintain accuracy. The ranges are low resolution and high resolution. The measurement ranges of the hybrid/EV battery pack current sensor have some overlap with each other. The high resolution measures from -23 to +23 A. The low resolution measures from -470 to +280 A.

P0B13 More Information

Need more information on how to fix the P0B13 code?
Get Access to Factory Service Manuals

Information for specific makes

  • P0B13 BUICK Hybrid/EV Battery Low Resolution Current Sensor - High Resolution Current Sensor Not Plausible
  • P0B13 CADILLAC Hybrid/EV Battery Low Resolution Current Sensor - High Resolution Current Sensor Not Plausible
  • P0B13 CHEVROLET Hybrid/EV Battery Low Resolution Current Sensor - High Resolution Current Sensor Not Plausible
  • P0B13 GMC Hybrid/EV Battery Low Resolution Current Sensor - High Resolution Current Sensor Not Plausible
  • P0B13 SATURN Hybrid/EV Battery Low Resolution Current Sensor - High Resolution Current Sensor Not Plausible

Need more help?

Get the P0b13 code diagnosed by a professional: Find a repair shop in your area