AutoCodes – Lincoln – B1691 Lincoln

B1691 Lincoln Code - Autolamp Delay Circuit Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Autolamp Delay Circuit. Common causes include Faulty Autolamp Delay Circuit, Faulty Body Control Module (BCM). 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: B1691 Lincoln indicates Autolamp Delay Circuit Short To Battery.
Common causes: Common causes include Faulty Autolamp Delay Circuit, Faulty Body Control Module (BCM).
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 611

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 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1691 Lincoln Description

The Body Control Module (BCM) monitors the Autolamp Delay Circuit. The BCM sets the OBDII code when the Autolamp Delay Circuit is not to factory specifications.

OBDII Code B1691 Lincoln - Autolamp Delay Circuit Short To Battery - AutoCodes.com — B1691 Lincoln Code - Autolamp Delay Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC B1691 Lincoln?

Faulty Autolamp Delay Circuit
Faulty Body Control Module (BCM)

How to Fix the DTC B1691 Lincoln?

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 B1691 Lincoln 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 B1691 Lincoln Code

1. What are the common symptoms of OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery?

- Common symptoms include the interior lights staying on or flickering, the autolamp delay feature not working properly, and potential draining of the vehicle's battery.

2. What are the possible causes of OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery?

- The possible causes of this code can be a short circuit in the autolamp delay circuit wiring, a faulty autolamp delay relay, or a malfunctioning autolamp control module.

3. How can I diagnose OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery?

- Diagnosis involves checking the wiring harness for any visible damage, testing the autolamp delay relay for proper functionality, and using a diagnostic scanner to pinpoint the exact source of the short circuit.

4. Can I continue driving my vehicle with OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery?

- It is generally safe to continue driving the vehicle with this code, but it is recommended to address the issue promptly to prevent any potential electrical problems or battery drainage.

5. How can I repair OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery?

- Repairing this code involves fixing the short circuit in the autolamp delay circuit wiring, replacing any damaged components like the autolamp delay relay or control module, and clearing the diagnostic trouble codes.

6. Is it possible to reset OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery without repairs?

- While clearing the diagnostic trouble codes may temporarily reset the code, it is important to address the underlying issue causing the fault code to prevent it from reoccurring.

7. Can a DIY enthusiast fix OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery?

- DIY enthusiasts with experience in automotive electrical systems may be able to diagnose and repair this code, but it is recommended to consult a professional if unsure about the process.

8. How much does it cost to repair OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery at a repair shop?

- The cost of repairing this code at a repair shop can vary depending on the extent of the damage and the specific components that need to be replaced, but it typically ranges from $100 to $300.

9. Are there any preventive measures to avoid OBDII code B1691 (Lincoln) Autolamp Delay Circuit Short To Battery in the future?

- Regularly inspecting the vehicle's electrical system for any signs of wear or damage, avoiding overloading the autolamp delay circuit, and ensuring proper installation of aftermarket electrical components can help prevent this code from occurring.