[55B] AUTOMATIC AIR CONDITIONER - - TROUBLESHOOTING - CHECK AT ENGINE-A/T ECU TERMINALS | PRINT PAGE / INDEX / PRIOR / NEXT

CHECK AT ENGINE-A/T ECU TERMINALS
<2000>
Terminal No. | Check items | Check conditions | Normal conditions
--- | --- | --- | ---
18 | Output to fan controller | Air conditioner switch: OFF | 4.9 - 5.1 V
Air conditioner switch: ON | 0 V
21 | Output to A/C compressor | A/C compressor relay: OFF | System voltage
A/C compressor relay: ON | 0 V
46 | A/C pressure sensor power supply | Always | 4.9 - 5.1 V
57 | A/C pressure sensor earth | Always | 0 V
61 | Input from A/C-ECU (A/C2) | When the A/C is under low load | System voltage
62 | Input from A/C pressure sensor | 2.6MPa | 3.9 V
83 | Input from A/C-ECU (A/C1) | When the A/C is in operation (When the air thermo sensor detects 3°C or more). | System voltage
<2400>
Terminal No. | Check items | Check conditions | Normal conditions
--- | --- | --- | ---
17 | Output to fan controller | Air conditioner switch: OFF | 4.9 - 5.1 V
Air conditioner switch: ON | 0 V
16 | Output to A/C compressor | A/C compressor relay: OFF | System voltage
A/C compressor relay: ON | 0 V
97 | A/C pressure sensor power supply | Always | 4.9 - 5.1 V
96 | A/C pressure sensor earth | Always | 0 V
78 | Input from A/C-ECU (A/C2) | When the A/C is under low load | System voltage
118 | Input from A/C pressure sensor | 2.6MPa | 3.9 V
69 | Input from A/C-ECU (A/C1) | When the A/C is in operation (When the air thermo sensor detects 3°C or more). | System voltage

[55B] AUTOMATIC AIR CONDITIONER - - TROUBLESHOOTING - CHECK AT ENGINE-A/T ECU TERMINALS | PRINT PAGE / INDEX / PRIOR / NEXT

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