Operation CHARM
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BMW
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1992
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535i (E34) L6-3430cc 3.4L SOHC (M30)
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Repair and Diagnosis
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Heating and Air Conditioning
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Control Module HVAC
Control Module HVAC
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Locations
A/C Compressor Control Unit (A552)
IHKR/F3 Switching Unit (S135w)
Integrated Climate Regulation Control Unit
Service and Repair
Diagrams
Diagram Information and Instructions
Wire Color Code Identification
Component ID (General List)
Part 1 A
Part 2 B
Part 3 C-G
Part 4 H-M
Part 5 N-Z
Introduction
Symbol Identification
Diagnostic Aids
Troubleshooting Procedures
Troubleshooting Tools
Troubleshooting Tests
Voltage Test
Voltage Drop Test
Continuity Test
Short Test Using Voltmeter
Short Test Using Ohmmeter
Current Test Using Ammeter
Electrical Diagrams
Technical Service Bulletins
