U1847 Chevrolet Code - Drive Motor Control Module 1 Lost Communication With Battery Energy Control Module On Powertrain Expansion CAN Bus
Quick Answer
The Drive Motor Control Modules and the Hybrid/EV Powertrain Control Module 1 are all internal to the Power Inverter Module. Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy 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
- U1847 Chevrolet indicates Drive Motor Control Module 1 Lost Communication With Battery Energy Control Module On Powertrain Expansion CAN Bus.
- Common causes
- Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy 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 U1847 Chevrolet Description
Communication diagnostics for the serial data, including device power and ground as well as the wakeup circuits for Drive Motor Control Modules and the Hybrid/EV Powertrain Control Module 1 are all diagnosed from external sources only to the Power Inverter Module connector because any circuit fault condition within the Power Inverter Module will cause a complete replacement.
The Diagnostic Trouble Code (DTC) will set when a supervised periodic message that includes the transmitter device availability has not been received.
What are the Possible Causes of the DTC U1847 Chevrolet?
- Faulty Battery Energy Control Module
- Battery Energy Control Module harness is open or shorted
- Battery Energy Control Module circuit poor electrical connection
How to Fix the DTC U1847 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 U1847 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 U1847 Chevrolet Code
1. What are common symptoms of OBDII code U1847 in a Chevrolet related to Drive Motor Control Module 1 Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus?
- Common symptoms may include loss of power, drivability issues, and the illumination of the check engine light.
2. What are the possible causes of OBDII code U1847 in a Chevrolet?
- Possible causes may include faulty wiring or connectors, a malfunctioning Drive Motor Control Module, issues with the Battery Energy Control Module, or problems with the Powertrain Expansion CAN Bus.
3. How can I diagnose and repair OBDII code U1847 in a Chevrolet?
- Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking the wiring and connectors for any damage, and testing the Drive Motor Control Module and Battery Energy Control Module. Repair may involve repairing or replacing damaged wiring, connectors, or modules as needed.
4. Are there any common mistakes to avoid when addressing OBDII code U1847 in a Chevrolet?
- Common mistakes to avoid include overlooking simple wiring issues, replacing components without proper diagnosis, and neglecting to clear the code after repairs are made.
5. Can OBDII code U1847 in a Chevrolet be safely driven with?
- It is generally not recommended to drive with this code present, as it can cause drivability issues and potentially lead to further damage if left unaddressed.
6. Will resetting the check engine light make OBDII code U1847 in a Chevrolet go away?
- Simply resetting the check engine light will not resolve the underlying issue causing the code. It is important to diagnose and repair the root cause to successfully clear the code.
7. How much does it typically cost to repair OBDII code U1847 in a Chevrolet?
- The cost of repair can vary depending on the specific cause of the code, the extent of the issue, and labor rates. It is recommended to consult with a professional mechanic for an accurate estimate.
8. Is OBDII code U1847 specific to Chevrolet vehicles only?
- Yes, this particular code is specific to Chevrolet vehicles and relates to communication issues between the Drive Motor Control Module and Battery Energy Control Module on the Powertrain Expansion CAN Bus.
9. Can extreme weather conditions affect the occurrence of OBDII code U1847 in a Chevrolet?
- Extreme weather conditions may potentially exacerbate existing communication issues related to this code, so it is important to keep this in mind when diagnosing and repairing the problem.
10. How can I prevent OBDII code U1847 from occurring in my Chevrolet in the future?
- Regular maintenance, timely repairs of any related issues, and ensuring proper wiring connections can help prevent the recurrence of this code in your Chevrolet.
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