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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1561 (Climate Control System - General Information (Except Electric) (2 Of 2)) >> Diagnosis And Testing >> Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) >> Pinpoint Test(s) >> Pinpoint Test R : B14AE:11, B14AE:12 >> Notes

Pinpoint Test R : B14AE:11, B14AE:12: Notes

WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Manual Climate Control System for schematic and connector information.

Normal Operation and Fault Conditions 

A 5-volt reference voltage is supplied to the stepper motor style climate control actuators from the HVAC control module.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B14AE:11 Actuators Power Supply: Circuit Short to Ground This DTC sets when the module senses less than 5 volts on the actuator reference voltage circuit, indicating a short to ground. Door actuators are inoperative.
B14AE:12 Actuators Power Supply: Circuit Short to Battery This DTC sets when the module senses greater than 5 volts on the actuator reference voltage circuit, indicating a short to voltage. Door actuators are inoperative.

Possible Sources 

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