P1EB9
High Voltage Energy Management Communication Bus Enable Circuit
P1EB9 is an OBD-II diagnostic trouble code meaning: High Voltage Energy Management Communication Bus Enable Circuit. Common causes: open or short circuit in the bus switching circuit, damage to the high voltage system wiring harness. Estimated repair cost: $22–167.
Symptoms
- Check Engine light comes on
- Reduced performance of the hybrid system
- Switching the vehicle into emergency mode
- Errors in other related systems
- Error message on the dashboard
Causes
- Open or short circuit in the bus switching circuit
- Damage to the high voltage system wiring harness
- Malfunction of one of the control modules
- Control circuit power problems
- Corrosion of contacts or connectors
How to Fix
- Diagnostics of the communication bus switching circuit
- Checking the integrity of the wiring harness
- Testing operating parameters of control modules
- Replacing damaged circuit components
- Reset the error and recheck the system
Related codes
FAQ
What does the P1EB9 code mean?
P1EB9 is an OBD-II diagnostic trouble code that indicates: High Voltage Energy Management Communication Bus Enable Circuit
What causes a P1EB9 error code?
The most common causes of P1EB9 include: Open or short circuit in the bus switching circuit; Damage to the high voltage system wiring harness; Malfunction of one of the control modules; Control circuit power problems.
How do I fix a P1EB9 diagnostic trouble code?
To fix P1EB9: Diagnostics of the communication bus switching circuit. Checking the integrity of the wiring harness. Testing operating parameters of control modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1EB9?
Yes, but get it checked soon
How much does it cost to fix P1EB9?
The estimated repair cost for P1EB9 is $22–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat