AutoCodes – Jeep – B16AB Jeep

B16AB Jeep Code - Trunk Lamp Control Circuit Short

Quick Answer

The Body Control Module (BCM) monitors the Trunk Lamp. Common causes include Faulty Trunk Lamp, Trunk Lamp harness is open or shorted, Trunk Lamp 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: B16AB Jeep indicates Trunk Lamp Control Circuit Short.
Common causes: Common causes include Faulty Trunk Lamp, Trunk Lamp harness is open or shorted, Trunk Lamp 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.

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Code Popularity 726

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 19, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B16AB Jeep Description

The Body Control Module (BCM) monitors the Trunk Lamp. The BCM sets the OBDII code when the Cluster detects a short to ground in the Courtesy Lamps Driver circuit or when the Cluster detects an open or a short to voltage in the Courtesy Lamps Driver circuit.

OBDII Code B16AB Jeep - Trunk Lamp Control Circuit Short - AutoCodes.com — B16AB Jeep Code - Trunk Lamp Control Circuit Short

What does this mean?

What are the Possible Causes of the DTC B16AB Jeep?

Faulty Trunk Lamp
Trunk Lamp harness is open or shorted
Trunk Lamp circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B16AB 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 does this mean?

Code Tech Notes

B16AB-11-TRUNK LAMP CONTROL CIRCUIT SHORT TO GROUND
B16AB-15-TRUNK LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16AB 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.

Need more information about the B16AB Jeep code?

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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 B16AB Jeep Code

1. What are the common symptoms of OBDII code B16AB in a Jeep related to the Trunk Lamp Control Circuit Short?

- Common symptoms include the trunk lamp not working, flickering, or staying on constantly even when the trunk is closed.

2. What are the possible causes of the Trunk Lamp Control Circuit Short in a Jeep triggering code B16AB?

- Possible causes include a short circuit in the trunk lamp wiring, a faulty trunk lamp switch, or a problem with the body control module.

3. How can I diagnose the Trunk Lamp Control Circuit Short issue in my Jeep when OBDII code B16AB is detected?

- You can start by visually inspecting the trunk lamp wiring and the switch for any signs of damage. Using a multimeter to test for continuity and shorts can help pinpoint the issue.

4. Is it safe to continue driving my Jeep with the B16AB code related to the Trunk Lamp Control Circuit Short?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent any potential electrical problems in the future.

5. Can I repair the Trunk Lamp Control Circuit Short issue triggering code B16AB in my Jeep myself?

- If you have experience with automotive electrical systems, you may be able to repair the issue yourself by identifying and fixing the short circuit or replacing the faulty components.

6. Will resetting the OBDII code B16AB related to the Trunk Lamp Control Circuit Short make the problem go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the Trunk Lamp Control Circuit Short.

7. How much does it typically cost to repair the Trunk Lamp Control Circuit Short issue in a Jeep with code B16AB?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a bad trunk lamp bulb cause the Trunk Lamp Control Circuit Short in a Jeep and trigger code B16AB?

- While a bad trunk lamp bulb itself may not directly cause the circuit short, it can sometimes be a symptom of an underlying wiring or control module issue.

9. Will disconnecting the trunk lamp in my Jeep resolve the Trunk Lamp Control Circuit Short problem indicated by code B16AB?

- Disconnecting the trunk lamp may temporarily prevent the short circuit from causing further issues, but it is recommended to properly diagnose and repair the root cause.

10. Is the Trunk Lamp Control Circuit Short issue related to OBDII code B16AB a common problem in Jeeps?

- While it may not be one of the most common issues, some Jeep owners have reported experiencing the Trunk Lamp Control Circuit Short leading to the B16AB trouble code.