HomeTrouble CodesU0413

U0413 — Invalid Data Received From Battery Energy Control Module B

Generic OBD-II · all makesNetwork / communication

U0413 signals that the vehicle network received invalid data from the Battery Energy Control Module B (BECM).

Symptoms

What causes it — most likely first

1. Loose or corroded connector

The primary cause is often a poor electrical connection at the BECM harness, leading to corrupted data transmission.

2. Damaged wiring harness

Frayed, chafed, or pinched wires between the BECM and other modules can interrupt communication.

3. Faulty Battery Energy Control Module B

A malfunction inside the BECM itself can generate erroneous signals that the network interprets as invalid data.

4. Communication error with another module

A fault in a module that exchanges data with the BECM (e.g., powertrain or body control module) may cause the BECM to transmit incorrect information.

5. Ground or power supply issue

High resistance in the ground or voltage supply to the BECM can distort data packets.

6. PCM/ECM software glitch

A problem within the main control module is rare and typically only occurs after other causes have been ruled out.

How it's diagnosed

  1. Inspect the BECM connector for corrosion, bent pins, or loose locking tabs.
  2. Examine the wiring harness for cuts, abrasions, or signs of chafing.
  3. Use a scan tool to monitor live data from the BECM and compare it to expected values.
  4. Test voltage and continuity on the BECM power and ground circuits.
  5. Perform a module communication test to isolate whether the fault lies in the BECM or an associated control module.

Code facts & related codes

SystemNetwork / communication
StandardizationSAE generic — identical on every make

Frequently asked

Can I fix U0413 by replacing the PCM?

Replacing the PCM is rarely necessary; the code usually points to wiring, connector, or BECM issues rather than the main control module.

Will a battery replacement trigger this code?

Installing a battery that does not meet vehicle specifications or disturbing the connections can cause U0413 to set.

Is this code a safety hazard?

The code itself does not directly endanger the driver, but it may limit hybrid system performance and should be addressed promptly.

How long does a typical repair take?

The duration depends on the root cause; cleaning a connector may take minutes, while replacing a damaged harness or module can require several hours.