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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 600 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Handles, Locks, Latches and Entry Systems - With Intelligent Access (IA) >> Pinpoint Tests >> Pinpoint Test AJ : The Keyless Entry Keypad Illumination Is Inoperative >> Notes

Pinpoint Test AJ : The Keyless Entry Keypad Illumination Is Inoperative: Notes

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Remote Keyless Entry and Alarm , for schematic and connector information.

Normal Operation and Fault Conditions 

Refer to Handles, Locks, Latches and Entry Systems - With Intelligent Access (IA) .

RFA Module DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B121A:11 Keypad Illumination Output: Circuit Short To Ground Sets when the RFA module detects a short to ground from the keyless entry keypad illumination output circuit.
B121A:15 Keypad Illumination Output: Circuit Short To Battery or Open Sets when the RFA module detects an open from the keyless entry keypad illumination output circuit.

Possible Causes 

Visual Inspection and Diagnostic Pre-checks 

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