B121B LINCOLN Possible Causes
- Faulty Keypad Input Switch
- Keypad Input Switch harness is open or shorted
- Keypad Input Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B121B LINCOLN
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.
B121B LINCOLN Tech NotesB121B:01 Keypad Input Switch General Electrical Failure
B121B:11 Keypad Input Switch Circuit Short To Ground
Cost of diagnosing the B121B LINCOLN code
Labor: 1.0The cost of diagnosing the B121B LINCOLN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
B121B LINCOLN Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B121B LINCOLN MeaningThe keypad feature operates independently of key position status, vehicle speed, or transmission position. When a keypad button is touched, the keypad buttons illuminate to provide better visibility. The keypad is also illuminated any time that the courtesy lighting is on. If the lock all doors command is entered or 5 seconds have elapsed since the last button press, the illumination is turned off. Each vehicle equipped with a keypad is programmed with a 5-digit entry code. This code is provided to the customer through a wallet card in the Owner's Literature. In addition, this code is available through a scan tool and is also printed on the BCM label. When entering codes each digit must be entered within 5 seconds of the previous button press. A DTC that sets when the BCM detects a short to ground on any of the keyless entry keypad input circuits.
B121B LINCOLN More InformationNeed more information on how to fix the B121B LINCOLN code?
Get Access to Factory Service Manuals