Daytime Running Light Module Circuit
2004-2004 Dodge Dakota 4.7L V8
The 2004 Dodge Dakota is equipped with a 4.7L V8 engine. Below you'll find detailed b2101 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in the daytime running light (DRL) module or circuit.
Symptoms
- DRLs not illuminating
- DRLs always on even with headlights on
- DRL brightness incorrect
- DRL warning message on display
Common Causes
- Faulty DRL module
- Burnt out DRL bulb/LED
- Wiring issue
- BCM DRL output fault
- Light sensor input error
Diagnostic Steps
- Check DRL bulbs/LEDs
- Test DRL module power and ground
- Inspect wiring
- Scan BCM for DRL codes
- Test light sensor input
Repair Notes
Replace DRL bulbs/LEDs or DRL control module.
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
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
- B0012Driver Side Airbag Deployment Circuit Short to Ground
- B0013Driver Side Airbag Deployment Circuit Short to Battery
B2101 on Other Vehicles
Common Questions
What does code B2101 mean on a 2004-2004 Dodge Dakota?
B2101 stands for "Daytime Running Light Module Circuit". Malfunction in the daytime running light (DRL) module or circuit.
What are the symptoms of B2101 on a Dodge Dakota?
Common symptoms of B2101 include: DRLs not illuminating, DRLs always on even with headlights on, DRL brightness incorrect, DRL warning message on display.
What causes B2101 on a 2004-2004 Dodge Dakota?
Common causes of B2101 include: Faulty DRL module, Burnt out DRL bulb/LED, Wiring issue, BCM DRL output fault, Light sensor input error.
Last updated: March 2026