DOBD DashX ☰ Browse all codes Blog
P0D37

Hybrid/EV Battery System Current High

Generic OBD-II

What it means

The current flowing in or out of the hybrid/EV battery system is higher than the control module allows. The control module watches the current flowing in and out of the high-voltage battery to protect it and limit power.

Can I keep driving? Usually yes for a short trip, but power may be reduced or the car may stop without warning; get it read soon. Do not open high-voltage (orange) cables or covers yourself; leave that to a trained technician.

What this part does

The high-voltage battery pack is the large assembly of cells, wiring and sensors that stores the energy used to drive a hybrid or electric vehicle. The battery control system monitors it continuously and tells the rest of the vehicle how much power it can supply or accept. It carries dangerous voltage, so work on it is for trained people. Problems may cause a warning, reduced range or power, or a car that will not start.

Common symptoms

What you'll notice

Common causes

Most likely first

  1. Faulty hybrid/EV battery pack or cells
  2. Malfunctioning hybrid/EV battery management system
  3. Electrical wiring issues in the hybrid/EV battery system
  4. Stressed or damaged hybrid/EV battery connectors

How to diagnose & fix

Work through it in order

  1. Inspect and clean battery terminals and connections
  2. Check and replace faulty battery cables
  3. Test and replace the hybrid/EV battery pack if necessary
  4. Inspect and repair damaged wiring in the hybrid/EV system

Related codes

Read & clear P0D37 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

Need a scanner that reads ABS, airbag and more? GaragePro OBD scan tools ship worldwide. See scanners →