Normal Operation
WARNING: This page is about a different variant/trim than selected.
Under normal operation, the HVAC module receives a ground through circuit GD116 (BK/VT). The HVAC module is supplied constant battery voltage through circuit SBP15 (WH/RD).
- DTC U3003:16 (Control Module Input Power "A": Circuit Voltage Below Threshold) - The module senses when battery voltage is greater than 16 volts.
- DTC U3003:17 (Control Module Input Power "A": Circuit Voltage Above Threshold) - The module senses when battery voltage is less than 9 volts.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- HVAC module