Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
To diagnose the B1942 Mercury code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
The voltage at the terminal is set by Air Bag Diagnostic Monitor to be slightly less than the battery voltage. This circuit is connected to the circuit inside the left front impact sensor. The voltage at the circuit and diagnostic monitor should be the same as the voltage at the diagnostic monitor circuit. The air bag diagnostic monitor periodically pulls voltage low to verify the connection to the terminal. If the voltage at circuit does not pull low as a result of the test, the Diagnostic Trouble Code (DTC) B1941 will be stored in memory and AIR BAG warning light will flash. If the condition is repaired or corrected, DTC B1941 will be stored in memory.
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