B1142 Ford 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 Ford 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 Ford 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 Ford?
- 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 Ford?
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 Ford 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 Ford Code
1. What does the OBDII code B1142 mean on a Ford vehicle?
The B1142 code indicates that the Ignition Status 1 signal is invalid, meaning the vehicle's control module is not receiving proper data about the ignition switch position.
2. What are the common symptoms of the B1142 code in a Ford vehicle?
Symptoms may include difficulty starting the vehicle, intermittent power issues, warning lights on the dashboard, or a failure to recognize the ignition position.
3. What causes the B1142 Ignition Status 1 Signal Invalid code?
Common causes include a faulty ignition switch, damaged wiring or connectors in the ignition circuit, a malfunctioning body control module (BCM), or software glitches.
4. Can a weak battery trigger the B1142 code?
Yes, a weak or failing battery can cause voltage irregularities that may lead to the B1142 code being set.
5. How is the B1142 code diagnosed?
A technician will use a scan tool to read the code, inspect the ignition switch and related wiring, check for voltage and continuity in the circuit, and test the body control module.
6. Can the B1142 code cause the vehicle to not start?
Yes, if the ignition signal is not being received correctly, the vehicle may fail to start or experience intermittent starting issues.
7. How do you fix the B1142 code in a Ford vehicle?
Repairs may involve replacing the ignition switch, repairing damaged wiring or connectors, updating the BCM software, or replacing the BCM if it’s faulty.
8. Is the B1142 code specific to Ford vehicles?
Yes, the B1142 code is specific to Ford and pertains to the Ignition Status 1 Signal Invalid issue as interpreted by Ford's diagnostic system.
9. How much does it cost to repair the B1142 code?
Repair costs vary depending on the cause but may range from $100 for simple wiring repairs to over $500 if the body control module requires replacement.
10. Can I clear the B1142 code without fixing the issue?
Clearing the code without addressing the root cause may temporarily remove the warning, but the issue will likely recur until properly repaired.
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