B1637 Jeep Code - Right High Beam Control Circuit Low
Quick Answer
The Front Totally Integrated Power Module (TIPM) monitors the Right High Beam. Common causes include Faulty Right High Beam Bulb, Right High Beam Bulb harness is open or shorted, Right High Beam Bulb 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
- B1637 Jeep indicates Right High Beam Control Circuit Low.
- Common causes
- Common causes include Faulty Right High Beam Bulb, Right High Beam Bulb harness is open or shorted, Right High Beam Bulb 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 B1637 Jeep Description
What are the Possible Causes of the DTC B1637 Jeep?
- Faulty Right High Beam Bulb
- Right High Beam Bulb harness is open or shorted
- Right High Beam Bulb circuit poor electrical connection
- Faulty Front Totally Integrated Power Module (TIPM)
How to Fix the DTC B1637 Jeep?
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 B1637 Jeep 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 B1637 Jeep Code
1. What does the OBDII code B1637 on a Jeep mean?
The B1637 code indicates an issue with the Right High Beam Control Circuit, specifically that the circuit is experiencing a low voltage condition.
2. What are the common symptoms of the B1637 code on a Jeep?
Symptoms include the right high beam not functioning, dim lighting on the right side, or a dashboard warning related to the lighting system.
3. What causes the B1637 code to appear on a Jeep?
Common causes include a faulty high beam bulb, damaged wiring or connectors, a malfunctioning headlight control module, or a blown fuse.
4. Can a bad high beam bulb trigger the B1637 code?
Yes, a burned-out or faulty right high beam bulb can cause the circuit to report a low voltage condition, triggering the B1637 code.
5. How do I diagnose the B1637 code on a Jeep?
Start by visually inspecting the right high beam bulb, wiring, and connectors. Use a multimeter to check for voltage and continuity in the circuit, and inspect the headlight control module.
6. Is it safe to drive with the B1637 code on a Jeep?
While the vehicle is generally safe to drive, reduced visibility from a malfunctioning high beam can be hazardous, especially at night or in poor weather conditions.
7. How can I fix the B1637 code on a Jeep?
The fix may involve replacing the high beam bulb, repairing damaged wiring or connectors, replacing a blown fuse, or addressing a faulty headlight control module.
8. Can a blown fuse cause the B1637 code on a Jeep?
Yes, if the fuse responsible for the right high beam circuit is blown, it can result in a low voltage condition and trigger the B1637 code.
9. How much does it cost to repair the B1637 code on a Jeep?
Repair costs vary depending on the issue. Replacing a bulb may cost $20-$50, while fixing wiring or replacing a control module can range from $100 to $500 or more.
10. Can I clear the B1637 code without fixing the problem?
Clearing the code without addressing the root cause will likely result in the code returning. Proper diagnosis and repair are necessary to resolve the issue.
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