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C-11, AC Information Switch Circuit Opel Vectra B

C-11, Air Conditioning System Information Switch Circuit

C-11, Air Conditioning System Information Switch Circuit
TestWork Order DescriptionNominal Value
T01Check: Short to Voltage of Signal Circuit
Ignition OFF Disconnect wiring harness connector from: X7 Instrument Panel & Multec Ignition ON Measure voltage between the following terminals: X7 Instrument Panel & Multec Wiring Harness Connector (wiring harness side) Terminal 21 & Ground Air conditioning system switch OFFless than 0.2 V
Yes: T02No: E03
T02Check: Short to Ground/Interruption of Signal Circuit
Ignition ON Measure voltage between the following terminals: X7 Instrument Panel & Multec Wiring Harness Connector (wiring harness side) Terminal 21 & Ground Air conditioning system switch ONgreater than 11 V
Yes: E01No: E02
C-11, Air Conditioning System Information Switch Circuit
ResultCause Of Fault
E01Short circuit to ground/interruption of circuit between: X7 Instrument Panel & Multec Wiring Harness Connector (control unit side) Terminal 21 & K57 Control Unit - Multec Terminal A8 or Defective component: X7 Instrument Panel & Multec or K57 Control Unit - Multec
E02Short circuit to ground/interruption of circuit between: S1 Switch - Starter Terminal 15 & X7 Instrument Panel & Multec Terminal 21 or Defective component: S101 Switch - Air Conditioning or S20.1 Switch - Compressor, Low Pressure or S20.2 Switch - Compressor, High Pressure
E03Short circuit to voltage between: X7 Instrument Panel & Multec Terminal 21 & S101 Switch - Air Conditioning Terminal 5 & K64 Relay - Blower, Air Conditioning, 1.Stage Terminal 2 or Defective component: S101 Switch - Air Conditioning