B1696 Code - Autolamp On Circuit Short To Ground
Quick Answer
The Smart Junction Box (SJB) sends a voltage signal to the headlamp switch and the light sensor. Common causes include Faulty Light Sensor, Light Sensor harness is open or shorted, Light Sensor 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
- B1696 indicates Autolamp On Circuit Short To Ground.
- Common causes
- Common causes include Faulty Light Sensor, Light Sensor harness is open or shorted, Light Sensor 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 B1696 Description
When the headlamp switch is placed in the AUTOLAMPS ON position, the voltage signal is routed to ground. When the SJB detects the headlamp switch in the AUTOLAMPS ON position, the SJB monitors the light sensor input. The light sensor determines the amount of light based on the input received from the ambient lighting conditions. When the ambient level has reached a point (determined by the internal programming of the SJB ), the SJB provides voltage to the headlamps, parking and license plate lamps. The Diagnostic Trouble Code (DTC) sets when the SJB detects a short to ground from the autolamps on input circuit.
What are the Possible Causes of the DTC B1696?
- Faulty Light Sensor
- Light Sensor harness is open or shorted
- Light Sensor circuit poor electrical connection
- Faulty Headlamp Switch
- Faulty Smart Junction Box (SJB)
How to Fix the DTC B1696?
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 B1696 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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Information for Specific Makes
- B1696 Ford — Autolamp On Circuit Short To Ground
- B1696 Lincoln — Autolamp On Circuit Short To Ground
- B1696 Mercury — Autolamp On Circuit Short To Ground
Frequently Asked Questions about B1696 Code
1. What are the common symptoms of OBDII code B1696 (Autolamp On Circuit Short To Ground)?
- Common symptoms include the automatic headlights not functioning properly, the autolamp feature not working, and possible illumination of the check engine light.
2. What are the possible causes of OBDII code B1696?
- The code B1696 can be caused by a short to ground in the autolamp circuit, a faulty autolamp sensor, damaged wiring in the autolamp system, or a malfunctioning autolamp control module.
3. How can I diagnose OBDII code B1696?
- Diagnosis typically involves using a scan tool to read the code, inspecting the autolamp circuit for any visible damage, and testing the autolamp sensor and control module for proper functionality.
4. What are some repair tips for fixing OBDII code B1696?
- Repair tips may include repairing any damaged wiring in the autolamp circuit, replacing the autolamp sensor or control module if faulty, and clearing the code with a scan tool after making necessary repairs.
5. Can OBDII code B1696 cause any other issues in the vehicle?
- While the code itself may not directly cause drivability issues, a malfunctioning autolamp system can affect visibility and safety while driving, especially at night or in low-light conditions.
6. Is it safe to continue driving with OBDII code B1696 present?
- It is generally not recommended to continue driving with an unresolved autolamp circuit issue, as it can impact visibility and safety on the road, particularly in low-light situations.
7. How much does it typically cost to repair OBDII code B1696?
- The cost of repairs for code B1696 can vary depending on the specific cause of the issue, the extent of the damage, and the labor rates of the repair shop. It's advisable to get a diagnosis and estimate from a qualified technician.
8. Can I reset OBDII code B1696 without fixing the underlying issue?
- Resetting the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely reoccur until the autolamp circuit problem is properly repaired.
9. Will disconnecting the battery reset OBDII code B1696?
- Disconnecting the battery may reset the code temporarily, but it is not a recommended method for resolving the underlying issue causing the autolamp circuit short to ground.
10. How can I prevent OBDII code B1696 from occurring in the future?
- To prevent code B1696, it's essential to regularly inspect the autolamp system for any signs of damage, address any issues promptly, and follow proper maintenance schedules for the vehicle's lighting components.
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