B0089
SRS Control Module Voltage High
2019-2024 BMW 3 Series G20 2.0L I4 Turbo B48
High SeverityBodyGeneric (SAE)
Description
The SRS control module is receiving higher than specified operating voltage.
Symptoms
- Airbag warning light on
- SRS codes set
- Electronic component stress
Common Causes
- Overcharging alternator
- Faulty voltage regulator
- Poor ground causing voltage offset
- Jump start damage
Diagnostic Steps
- Check charging system voltage
- Test alternator output regulation
- Inspect ground connections
- Measure voltage at ACM
Repair Notes
Repair charging system. Replace alternator or voltage regulator if overcharging.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B0089 on Other Vehicles
Common Questions
What does code B0089 mean on a 2019-2024 BMW 3 Series G20?
B0089 stands for "SRS Control Module Voltage High". The SRS control module is receiving higher than specified operating voltage.
What are the symptoms of B0089 on a BMW 3 Series G20?
Common symptoms of B0089 include: Airbag warning light on, SRS codes set, Electronic component stress.
What causes B0089 on a 2019-2024 BMW 3 Series G20?
Common causes of B0089 include: Overcharging alternator, Faulty voltage regulator, Poor ground causing voltage offset, Jump start damage.