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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 238 (HVAC System - Automatic) >> Diagnostic Information and Procedures >> DTC B0223, B0228, B0233, B0408, B0413, B0418, B0423, B1395, or B374A: Recirculation/Main Temperature Control >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
5V Reference B1395 03 B1395 07 B1395 07 -
Recirculation Actuator Position Signal B0228 02 B0228 05 B0228 05 1
Main Temperature Actuator Position Signal B0413 02 B0413 05 B0413 05 2
Right Temperature Actuator Position Signal B0423 02 B0423 05 B0423 05 3
Mode Actuator Position Signal B374A 02 B374A 05 B374A 05 4
Recirculation Actuator Control 1 B0223 02 B0223 04 B0223 01 1
Recirculation Actuator Control 2 B0223 02 B0223 04 B0223 01 1
Main Temperature Actuator Control 1 B0408 02 B0408 04 B0408 01 2
Main Temperature Actuator Control 2 B0408 02 B0408 04 B0408 01 2
Right Temperature Actuator Control 1 B0418 02 B0418 04 B0418 01 3
Right Temperature Actuator Control 2 B0418 02 B0418 04 B0418 01 3
Mode Actuator Control 1 B0233 02 B0233 04 B0233 01 4
Mode Actuator Control 2 B0233 02 B0233 04 B0233 01 4
Low Reference - B0228 05 - -
  1. Air Recirculation Malfunction
  2. Main Temperature Malfunction
  3. Right Temperature Malfunction
  4. Air Distribution Malfunction