CHECK AT ENGINE-ECU TERMINAL


<6B3>




Terminal No.
 Terminal code
 Inspection Item
 Inspection Item (Engine condition)
 Normal condition
82
 AC/T
 Fin thermo sensor
 Evaporator surface temperature: 25°C (1.5 kΩ)
 1.1 - 1.3 V
88
 AC/S
 A/C switch
 Engine: Idling after warming up
 A/C switch: OFF
 System voltage
A/C switch: ON (A/C compressor is operating)
 0 - 3 V
104
 AC/R
 A/C compressor relay
  • Engine: Idle operation
  • A/C switch: OFF → ON
    (when the compressor is active)

 System voltage → 1.0 V or less
108
 F/LO
 A/C condenser fan relay
 A/C condenser fan inactive state
 System voltage
A/C condenser fan rotation state
 1 V or less
note
  • *1: The shown voltage is the average value where an analogue voltmeter is used (because a digital voltmeter may not be able to indicate the average voltage stably).
  • *2: If the battery is fully charged, the output reading may be incorrect.

<4N1>




Terminal No.
 Terminal code
 Inspection Item
 Inspection condition (Engine status)
 Normal condition
7
 AC/S
 A/C switch
 Engine: Idle speed (after warning up)
 A/C switch: OFF
 1 V or less
A/C switch: ON (A/C compressor in operation)
 System voltage
19
 AC/R
 A/C compressor relay
 Engine: Idle speed (after warning up)
 A/C switch: OFF
 System voltage
A/C switch: ON (A/C compressor in operation)
 1 V or less
21
 F/LO
 Condenser fan relay
 Engine: Idling after warming up the engine
 A/C switch: OFF
 System voltage
A/C switch: ON
 1 V or less <=> System voltage (Changes repeatedly)
61
 AC/T
 A/C fin thermo sensor
 Ignition switch: ON
 2.1 - 2.7 V