U1885 Chevrolet Code - Battery Energy Control Module Lost Communication With Hybrid/EV Powertrain Control Module
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Hybrid/EV Powertrain Control Module, Hybrid/EV Powertrain Control Module harness is open or shorted, Hybrid/EV Powertrain Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U1885 Chevrolet indicates Battery Energy Control Module Lost Communication With Hybrid/EV Powertrain Control Module.
- Common causes
- Common causes include Faulty Hybrid/EV Powertrain Control Module, Hybrid/EV Powertrain Control Module harness is open or shorted, Hybrid/EV Powertrain Control Module circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code U1885 Chevrolet Description
This diagnostic is used to check the loss of communication with Hybrid/EV Powertrain Control Module 1 on high-speed General Motor Local Area Network (GMLAN) bus. The Battery Energy Control Module supervises a periodic serial data message to check the communication status of the Hybrid/EV Powertrain Control Module 1. If this message is not received within 3 s, then this Diagnostic Trouble Code (DTC) is set.
What are the Possible Causes of the DTC U1885 Chevrolet?
- Faulty Hybrid/EV Powertrain Control Module
- Hybrid/EV Powertrain Control Module harness is open or shorted
- Hybrid/EV Powertrain Control Module circuit poor electrical connection
- Faulty Battery Energy Control Module
How to Fix the DTC U1885 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U1885 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about U1885 Chevrolet Code
1. What does the OBDII code U1885 mean on a Chevrolet?
U1885 indicates that the Battery Energy Control Module has lost communication with the Hybrid/EV Powertrain Control Module.
2. What are the common symptoms of the U1885 code in a Chevrolet?
Symptoms may include warning lights on the dashboard, reduced hybrid/electric performance, failure to start, or limited power mode.
3. What causes the U1885 code to appear on a Chevrolet?
Potential causes include faulty wiring, poor electrical connections, a malfunctioning Battery Energy Control Module, or a defective Hybrid/EV Powertrain Control Module.
4. Can the U1885 code be triggered by a dead battery?
Yes, a weak or dead 12V battery or hybrid battery can disrupt communication and trigger the U1885 code.
5. How do you diagnose the U1885 code on a Chevrolet?
Diagnosis involves checking the wiring and connectors between the Battery Energy Control Module and the Hybrid/EV Powertrain Control Module, scanning for additional codes, and testing the modules for proper operation.
6. Is the U1885 code specific to hybrid or electric Chevrolet vehicles?
Yes, this code is specific to hybrid and electric Chevrolet vehicles since it involves communication between modules related to battery and powertrain systems.
7. Can driving with the U1885 code cause further damage?
Yes, continuing to drive with this code can cause additional strain on hybrid/electric components and may lead to power loss or failure to start.
8. How is the U1885 code typically repaired?
Repairs may include fixing damaged wiring or connectors, updating module software, or replacing the Battery Energy Control Module or Hybrid/EV Powertrain Control Module if they are found to be faulty.
9. Can a software update fix the U1885 code?
In some cases, a software update for the affected control modules can resolve communication issues and clear the U1885 code.
10. How much does it cost to fix the U1885 code on a Chevrolet?
Repair costs vary widely depending on the cause, ranging from $100 for wiring repairs to over $1,000 if a module replacement is needed.
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