B1142 Lincoln Code - Ignition Status 1 Signal Invalid
Quick Answer
On vehicles equipped with a conventional ignition switch, fused battery voltage is sent to the ignition switch from Battery. Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch 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
- B1142 Lincoln indicates Ignition Status 1 Signal Invalid.
- Common causes
- Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch 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 B1142 Lincoln Description
On vehicles equipped with a start/stop switch, fused battery voltage is sent to one set of contacts in the start/stop switch from Battery. When the switch is pressed, this voltage is then sent to the Body Control Module (BCM), the Remote Function Actuator (RFA) module and the PCM. The other set of contacts in the start/stop switch connects the BCM to ground. When the switch is pressed, the BCM detects this ground signal and takes appropriate action.
What are the Possible Causes of the DTC B1142 Lincoln?
- Faulty Ignition Switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1142 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 B1142 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 B1142 Lincoln Code
1. What does the OBDII code B1142 mean on a Lincoln vehicle?
The B1142 code indicates that the Ignition Status 1 signal is invalid, meaning the vehicle's control module is not receiving a proper signal about the ignition's state.
2. What are the common symptoms of the B1142 code in a Lincoln?
Symptoms may include failure to start, intermittent starting issues, dashboard warning lights, or malfunctioning electronic accessories.
3. What causes the B1142 code to appear in a Lincoln?
Common causes include a faulty ignition switch, damaged wiring or connectors in the ignition circuit, or a malfunctioning body control module (BCM).
4. Can a weak battery cause the B1142 code in a Lincoln?
Yes, a weak or failing battery can cause voltage issues that may trigger this code.
5. How is the B1142 code diagnosed in a Lincoln?
Diagnosis involves scanning the vehicle with an OBDII tool, inspecting the ignition switch and related wiring, and testing the voltage and continuity of the ignition circuit.
6. Can I drive my Lincoln with the B1142 code?
It’s not recommended to drive with this code, as it could lead to starting issues or further damage to the electrical system.
7. How do you fix the B1142 code in a Lincoln?
Repairs may include replacing the ignition switch, repairing or replacing damaged wiring, or reprogramming or replacing the BCM if necessary.
8. How much does it cost to fix the B1142 code in a Lincoln?
Repair costs can range from $100 to $500 depending on whether the issue involves replacing the ignition switch, repairing wiring, or addressing BCM problems.
9. Can resetting the code fix the B1142 issue permanently?
Simply clearing the code without addressing the root cause will not fix the problem; the code is likely to return.
10. Is the B1142 code specific to Lincoln vehicles?
While B1142 is a generic OBDII code, its description and diagnosis pertain specifically to Lincoln’s ignition system design.
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