LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2018 >> Explorer Base, 2.3L Eng VIN H, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Windows >> Glass, Frames And Mechanisms >> Diagnosis And Testing >> Glass, Frames and Mechanisms - Vehicles With: One-Touch Open and Close Front Windows/Programmable Driver Seat >> Pinpoint Test(s) >> Pinpoint Test A : The Defrost System Is Inoperative >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pinpoint Test A : The Defrost System Is Inoperative: Notes

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/Programmable Driver Seat - System Operation and Component Description .

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B1C83:12 Rear Defog Relay: Circuit Short To Battery This DTC sets when the HVAC module detects a short to voltage on the rear window defrost relay control circuit.
B1C83:14 Rear Defog Relay: Circuit Short To Ground or Open This DTC sets when the HVAC module detects a short to ground or an open in the rear window defrost relay control circuit.

Possible Causes 

Visual Inspection and Diagnostic Pre-checks 

scientia non olet · About LEMON Manuals