AutoCodes – Dodge – B170B Dodge

B170B Dodge Code - Right Reverse Lamp Control Circuit

Quick Answer

The BCM receives a communication network message to indicate the vehicle is in reverse. Common causes include Blown Right Backup Bulb, Faulty Right Backup Lamp, Right Backup Lamp harness is open or shorted. 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: B170B Dodge indicates Right Reverse Lamp Control Circuit.
Common causes: Common causes include Blown Right Backup Bulb, Faulty Right Backup Lamp, Right Backup Lamp harness is open or shorted.
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.

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Code Popularity 3,084

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 23, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B170B Dodge Description

The BCM receives a communication network message to indicate the vehicle is in reverse. Once the BCM is informed that the vehicle is in reverse, it provides a Pulse Width Modulated (PWM) voltage output through the backup lamp driver circuit. The driver circuit connects to the Backup Lamp. A ground path for the lamps is present through the harness to the body sheet metal. For additional information on the Backup Lamps operation. When the Body Control Module (BCM) detects a high or low condition on the Right Backup Lamp Driver circuit sets the Diagnostic Trouble Code (DTC) code.

OBDII Code B170B Dodge - Right Reverse Lamp Control Circuit - AutoCodes.com — B170B Dodge Code - Right Reverse Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B170B Dodge?

Blown Right Backup Bulb
Faulty Right Backup Lamp
Right Backup Lamp harness is open or shorted
Right Backup Lamp circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B170B Dodge?

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 does this mean?

Code Tech Notes

B170B-11 RIGHT REVERSE LAMP CONTROL CIRCUIT SHORT TO GROUND
B170B-15 RIGHT REVERSE LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B170B Dodge 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B170B Dodge Code

1. What are common symptoms of OBDII code B170B (Dodge) - Right Reverse Lamp Control Circuit?

The common symptoms include the right reverse lamp not working, dim or flickering light, or a warning light on the dashboard indicating a fault.

2. What are possible causes of OBDII code B170B (Dodge)?

Possible causes include a faulty reverse lamp bulb, a damaged wiring harness, a defective reverse lamp switch, or a problem with the vehicle's body control module.

3. How can I diagnose the issue related to OBDII code B170B (Dodge)?

You can start by inspecting the right reverse lamp bulb for any signs of damage, checking the wiring harness for continuity, testing the reverse lamp switch for functionality, and using a diagnostic tool to scan for fault codes.

4. Can I repair OBDII code B170B (Dodge) - Right Reverse Lamp Control Circuit myself?

If you have basic knowledge of automotive electrical systems and access to the necessary tools, you can attempt to repair this issue yourself. However, if you are not confident in your abilities, it's recommended to seek assistance from a professional mechanic.

5. Are there any simple tips to troubleshoot OBDII code B170B (Dodge)?

You can start by checking the fuse related to the reverse lamps, inspecting the wiring for any visible damage, and ensuring the reverse lamp bulb is securely connected and functioning properly.

6. How critical is it to address OBDII code B170B (Dodge)?

While a malfunctioning right reverse lamp may not affect the overall drivability of the vehicle, it is essential for safety reasons to address this issue promptly, especially for visibility and awareness during reversing maneuvers.

7. How much does it cost to repair OBDII code B170B (Dodge)?

The cost of repairs can vary depending on the exact cause of the issue. Replacing a faulty bulb or fuse may be relatively inexpensive, while repairing or replacing wiring harnesses or control modules can be more costly.

8. Can OBDII code B170B (Dodge) trigger other warning lights on the dashboard?

Yes, a fault in the right reverse lamp control circuit can sometimes trigger other warning lights related to the vehicle's lighting system or electrical system, indicating a broader issue that needs attention.

9. Is it safe to continue driving with OBDII code B170B (Dodge) unresolved?

While driving with a malfunctioning right reverse lamp may not immediately affect the vehicle's performance, it is crucial to address the issue promptly to ensure proper visibility and compliance with road safety regulations.

10. How long does it typically take to repair OBDII code B170B (Dodge)?

The repair time can vary depending on the complexity of the issue and the availability of replacement parts. Simple fixes like bulb replacement may take a short time, while more extensive repairs could require additional diagnosis and labor.