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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 S : U3003:16, U3003:17 >> Notes

Pinpoint Test S : U3003:16, U3003:17: 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.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U3003:16 Battery Voltage: Circuit Voltage Below Threshold This Continuous Memory Diagnostic Trouble Code (CMDTC) sets when the HVAC control module senses lower than expected voltage.
U3003:17 Battery Voltage: Circuit Voltage Above Threshold This Continuous Memory Diagnostic Trouble Code (CMDTC) sets when the HVAC control module senses greater than expected voltage.

Possible Sources 

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