CHECK AT ENGINE-ECU TERMINAL




Terminal No.
 Terminal code
 Inspection Item
 Check condition (Engine condition)
 Normal condition
74
 AC/T
 Fin thermo sensor
 Evaporator surface temperature: 25°C (1.5 kΩ)
 1.1 - 1.3 V
88
 AC/S
 Blower switch
 Ignition switch: ON
 Blower switch: OFF
 System voltage
Blower switch: ON
 0 - 3 V
104
 AC/R
 A/C compressor relay
  • Engine: Idle operation
  • Blower switch: OFF → ON
    (when the compressor is active)

 Battery voltage → 1 V or less
108
 F/L0
 A/C condenser fan relay
 A/C condenser fan inactive state
 System voltage
A/C condenser fan rotation state
 1 V or less