CHECK AT ENGINE-ECU TERMINAL


<4D5>




Terminal No.
 Terminal code
 Inspection Item
 Inspection condition (Engine status)
 Normal condition
7
 AC/S
 A/C switch signal <Cooler, Manual A/C>
 Engine: Idle speed (after warning up)
  • A/C switch: OFF <Manual A/C>
  • Blower switch: OFF <Cooler>

 System voltage

  • Blower switch: Other than OFF
  • A/C switch: ON <Manual A/C>
  • Dual pressure switch: ON state

 1 V or less
9
 BFAN
 Blower fan switch <Cooler, Manual A/C>
 Engine: Idle speed (after warning up)
 Blower fan switch: OFF
 System voltage
Blower fan switch mode: 3
 1 V or less
19
 AC/R
 A/C compressor relay
 Engine: Idle speed (after warning up)
 A/C switch: OFF <Manual A/C>
Blower switch: OFF <Cooler>
 System voltage

  • Blower switch: Other than OFF
  • A/C switch: ON <Manual A/C>
  • A/C compressor in operation

 1 V or less
21
 F/LO
 Condenser fan relay <Vehicles with A/C condenser fan>
 Engine: Idling after warming up the engine
 A/C switch: OFF <Manual A/C>
Blower switch: OFF <Cooler>
 System voltage

  • Blower switch: Other than OFF
  • A/C switch: ON <Manual A/C>
  • A/C compressor in operation

 1 V or less <=> System voltage (Changes repeatedly)
61
 AC/T
 A/C fin thermo sensor
 Evaporator surface temperature: 25°C (1.5 kΩ)
 1.1 - 1.3 V