Subaru Legacy 2004 Service Manual page 3413

HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
1. Basic Diagnostic Procedure ........................................................................2
2. General Description ....................................................................................3
3. Electrical Component Location ...................................................................5
4. Auto A/C Control Module I/O Signal............................................................8
5. Diagnostic Chart for Self-Diagnosis ..........................................................10
6. Diagnostics for A/C System Malfunction ...................................................15
7. Diagnostic Procedure for Actuators ..........................................................24
8. Diagnostic Procedure for Sensors ............................................................30
9. Diagnostics with Phenomenon..................................................................38
AC(diag)
Page