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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1087 (Climate Control System - General Information) >> Diagnosis And Testing >> Climate Control System >> Pinpoint Test(s) >> Pinpoint Test Ab : U3003:16 >> Notes

Pinpoint Test Ab : U3003:16: Notes

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

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

Normal Operation and Fault Conditions 

RHVAC Control Module DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in the RHVAC control module if it detects battery voltage below 9 volts on the voltage supply circuit for 5 seconds or longer.

Possible Sources