B112A Lincoln Code - Ignition On Relay 'B' Circuit Short To Battery
Quick Answer
Conventional Ignition Switch: The ignition switch is a multiple position rotary switch that is controlled by a lock cylinder and a key. Common causes include Faulty Ignition On Relay 'B', Ignition On Relay 'B' harness is open or shorted, Ignition On Relay 'B' 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
- B112A Lincoln indicates Ignition On Relay 'B' Circuit Short To Battery.
- Common causes
- Common causes include Faulty Ignition On Relay 'B', Ignition On Relay 'B' harness is open or shorted, Ignition On Relay 'B' 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 B112A Lincoln Description
The ignition switch is a multiple position rotary switch that is controlled by a lock cylinder and a key. The ignition switch provides voltage to the ACC, ON, or START-designated circuits depending on the position it is placed. The Body Control Module (BCM) calculates the positions based on the voltage received from the ACC and ON-designated circuits.
The key removal inhibit solenoid (also known as the key release interlock actuator) is an electronically controlled solenoid that prevents the ignition lock cylinder from being turned to the OFF position unless the gear selector lever is in the PARK position. The key removal inhibit solenoid is part of the ignition switch.
Push Button Ignition Switch:
The push button ignition switch is used instead of a conventional ignition switch to achieve the various ignition modes. The push button ignition switch is a momentary dual contact switch. Both sets of contacts are normally open and receive the voltage at all times. When the START/STOP button is pressed, the voltage is sent to the BCM, the RFA module, and the PCM to indicate a button press.
The ignition switch has a LED for switch illumination when the backlighting is activated.
What are the Possible Causes of the DTC B112A Lincoln?
- Faulty Ignition On Relay 'B'
- Ignition On Relay 'B' harness is open or shorted
- Ignition On Relay 'B' circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B112A 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 B112A 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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Frequently Asked Questions about B112A Lincoln Code
1. What are common symptoms of OBDII code B112A in a Lincoln related to the Ignition On Relay 'B' Circuit Short To Battery?
- Common symptoms include difficulty starting the vehicle, intermittent stalling, and potential issues with various electrical components.
2. What can cause the OBDII code B112A in a Lincoln related to the Ignition On Relay 'B' Circuit Short To Battery?
- The code may be triggered by a short circuit in the wiring harness, a faulty ignition relay, or a malfunctioning ignition switch.
3. How can I diagnose the cause of the OBDII code B112A in my Lincoln?
- A thorough inspection of the wiring harness, ignition relay, and ignition switch using a multimeter can help pinpoint the source of the short circuit.
4. Are there any safety precautions to take when dealing with the OBDII code B112A related to the Ignition On Relay 'B' Circuit Short To Battery?
- It is important to disconnect the vehicle's battery before conducting any electrical tests or repairs to prevent the risk of electrical shock or damage.
5. Can I drive my Lincoln with the OBDII code B112A present?
- It is not recommended to drive the vehicle with this code active, as it can lead to potential issues with the vehicle's ignition system and electrical components.
6. How can I repair the OBDII code B112A related to the Ignition On Relay 'B' Circuit Short To Battery in my Lincoln?
- Repair options may include repairing or replacing damaged wiring, replacing the faulty ignition relay, or addressing any issues with the ignition switch.
7. Will resetting the OBDII code B112A in my Lincoln make it go away permanently?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the short circuit is not resolved, the code is likely to reappear.
8. Can a DIY enthusiast fix the OBDII code B112A related to the Ignition On Relay 'B' Circuit Short To Battery in a Lincoln?
- Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this issue, but professional assistance is recommended for complex electrical problems.
9. How much can I expect to pay to repair the OBDII code B112A in my Lincoln at a dealership or mechanic?
- Costs for repairing this code can vary depending on the exact cause of the issue, but expect to pay for diagnostic time, parts, and labor, which could range from $100 to $500 or more.
10. Are there any preventive measures I can take to avoid encountering the OBDII code B112A in my Lincoln?
- Regularly inspecting the vehicle's wiring harness, keeping the electrical system well-maintained, and addressing any issues promptly can help prevent the occurrence of this code.
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