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- A/C compressor relay connector check.
- Check A/C compressor relay itself (Refer to GROUP 55 - On-vehicle Service - Relay Check ).
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Q.
Is the check result normal?
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Repair or replace the connector or replace the A/C compressor relay.
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- Disconnect relay, and measure at relay box side.
- Voltage between terminal power supply lines and body earth.
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Q.
Is the check result normal?
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Check and repair harness between battery and A/C compressor relay connector terminals.
- Check power supply line for open/short circuit.
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- Check power supply line for damage.
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Q.
Is the check result normal?
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Repair the damaged harness wire.
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- Disconnect connector, and measure at harness side.
- Voltage between terminal AC/R and body earth.
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Q.
Is the check result normal?
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Repair or replace the connector, or check and repair harness between A/C compressor relay connector terminal and engine-ECU connector terminal AC/R.
- Check signal line for open/short circuit.
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- Check signal line for damage.
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Q.
Is the check result normal?
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Repair the damaged harness wire.
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- Check power supply line for open/short circuit and damage.
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Q.
Is the check result normal?
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Repair or replace the connector, or repair the damaged harness wire.
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- Disconnect engine-ECU connector, and short-circuit terminal AC/R to the body earth.
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OK: A/C compressor clutch operates.
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Q.
Is the check result normal?
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Replace the A/C compressor assembly.
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