B2473 Cadillac Code - High Beam Output Fault
Quick Answer
High beams are commanded by Platform Zone Module (PZM) through an output to HI/LO beam relay. Common causes include Faulty High/Low Headlamp Relay, High/Low Headlamp Relay harness is open or shorted, High/Low Headlamp Relay 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
- B2473 Cadillac indicates High Beam Output Fault.
- Common causes
- Common causes include Faulty High/Low Headlamp Relay, High/Low Headlamp Relay harness is open or shorted, High/Low Headlamp Relay 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 B2473 Cadillac Description
The Diagnostic Trouble Code (DTC) B2473 will set when commanded state of high beams does not match the feedback state. When DTC B2473 is set, PZM will continue to command state requested until IPC revokes request. DTC B2473 will clear when the commanded state matches the feedback state.
What are the Possible Causes of the DTC B2473 Cadillac?
- Faulty High/Low Headlamp Relay
- High/Low Headlamp Relay harness is open or shorted
- High/Low Headlamp Relay circuit poor electrical connection
- Faulty Platform Zone Module (PZM)
How to Fix the DTC B2473 Cadillac?
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 B2473 Cadillac 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 B2473 Cadillac Code
1. What are the common symptoms of OBDII code B2473 in a Cadillac related to high beam output fault?
- Dim or non-functioning high beam headlights, flickering lights, or high beams stuck in the on position are typical symptoms.
2. What are the possible causes of OBDII code B2473 in a Cadillac indicating a high beam output fault?
- Potential causes include a faulty high beam relay, damaged wiring harness, defective high beam switch, or issues with the body control module.
3. How can I diagnose the high beam output fault associated with OBDII code B2473 in my Cadillac?
- Use a multimeter to test the high beam circuit for continuity, check the high beam relay for proper operation, inspect the wiring for damage, and scan the vehicle's computer for other related codes.
4. Is it safe to continue driving my Cadillac with OBDII code B2473 pointing to a high beam output fault?
- It is not recommended to drive with malfunctioning high beams, as it can compromise visibility and safety while driving at night or in low-light conditions.
5. What are some DIY repair tips for addressing OBDII code B2473 in a Cadillac related to a high beam output fault?
- Check and replace any blown fuses related to the high beams, inspect and repair any damaged wiring, and ensure the high beam switch is functioning correctly.
6. Can resetting the OBDII system clear the B2473 code associated with the high beam output fault in a Cadillac?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the high beam output fault is not addressed, the code is likely to reappear.
7. How much does it typically cost to repair OBDII code B2473 indicating a high beam output fault in a Cadillac?
- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Are there any recalls or technical service bulletins related to OBDII code B2473 in Cadillacs with high beam output faults?
- It is recommended to check with a Cadillac dealership or online resources for any relevant recalls or technical service bulletins related to this specific OBDII code.
9. Can a high beam output fault indicated by OBDII code B2473 in a Cadillac cause other electrical issues in the vehicle?
- While the high beam output fault itself may not directly cause other electrical issues, it is essential to address and repair the fault promptly to prevent potential electrical system problems.
10. Should I seek professional help to diagnose and repair OBDII code B2473 in my Cadillac related to a high beam output fault?
- If you are not familiar with automotive electrical systems, it is advisable to seek the expertise of a qualified mechanic or technician to accurately diagnose and repair the high beam output fault indicated by OBDII code B2473 in your Cadillac.
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