Pinpoint Test B : The Defrost System Does Not Shut Off Automatically - EMTC (Electronic Manual Temperature Control): 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 Heated Window for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Glass, Frames and Mechanisms - Vehicles With: One-Touch Open and Close Front Windows - System Operation and Component Description .

Possible Sources

Rear window defrost relay
Wiring, terminals or connectors
HVAC module
BCM

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Conditions
B112D:15	Rear Window Defrost LED: Circuit Short To Battery Or Open	This DTC sets when the BCM detects a short to voltage on the rear window defrost LED circuit.
B1C84:11	Heated Rear Window Relay Output: Circuit Short To Ground	This DTC sets when the BCM detects a short to ground on the rear window defrost relay control circuit.
B1C84:14	Heated Rear Window Relay Output: Circuit Short To Ground or Open	This DTC sets when the BCM detects a short to ground or an open in the rear window defrost relay control circuit.