B1142 MERCURY - Ignition Status 1 Signal Invalid
B1142 MERCURY Possible Causes
- Faulty Ignition Switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B1142 MERCURY?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the B1142 MERCURY code
Labor: 1.0The cost of diagnosing the B1142 MERCURY code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
- Engine Light ON (or Service Engine Soon Warning Light)
B1142 MERCURY DescriptionOn vehicles equipped with a conventional ignition switch, fused battery voltage is sent to the ignition switch from Battery. This voltage is then sent to the Body Control Module (BCM) along one of 3 circuits, depending on ignition switch position.
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.
More InformationNeed more information on how to fix the B1142 MERCURY code?
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