U1862
Battery Energy Control Module Lost Communication With Serial Data Gateway Module
U1862 is an OBD-II diagnostic trouble code meaning: Battery Energy Control Module Lost Communication With Serial Data Gateway Module. Common causes: battery energy management module (becm) malfunction, serial data gateway failure.
Symptoms
- Malfunction indicator light (MIL) is on
- Error messages on the dashboard
- Battery charging problems
- Inability to start the engine
- Reduced vehicle performance
Causes
- Battery Energy Management Module (BECM) malfunction
- Serial Data Gateway Failure
- Open or short circuit in CAN bus wiring
- Poor connection in CAN bus connectors
- Problems with power supply or grounding of modules
How to Fix
- Check the CAN bus wiring and connectors for damage or corrosion.
- Check the power and grounding of the BECM and serial data gateway modules.
- Check the resistance of the CAN bus.
- Check the BECM and Serial Data Gateway modules for software updates.
- Replace the faulty module (BECM or serial data gateway).
Related codes
FAQ
What does the U1862 code mean?
U1862 is an OBD-II diagnostic trouble code that indicates: Battery Energy Control Module Lost Communication With Serial Data Gateway Module
What causes a U1862 error code?
The most common causes of U1862 include: Battery Energy Management Module (BECM) malfunction; Serial Data Gateway Failure; Open or short circuit in CAN bus wiring; Poor connection in CAN bus connectors.
How do I fix a U1862 diagnostic trouble code?
To fix U1862: Check the CAN bus wiring and connectors for damage or corrosion.. Check the power and grounding of the BECM and serial data gateway modules.. Check the resistance of the CAN bus.. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1862?
Yes, but get it checked soon
See also: Russian version · NationStat