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- Measure engine-ECU terminal voltage.
- Engine: Idling
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- A/C set temperature:
Maximum Cool when
temperature in cabin is 25°C or more Maximum Hot when
temperature in cabin is 25°C or less
- Voltage between terminal No. 15 and earth.
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OK
- System voltage (when A/C is ON)
- 0.5 V or less (when A/C is OFF)
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Q.
Is the check result normal?
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Check
A/C system (Refer to GROUP 55 - Troubleshooting - Check Chart
for Trouble Symptoms ).
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Q.
Is the check result normal?
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- Item 25: A/C switch
- Engine: Idling
- A/C set temperature:
Maximum Cool
when temperature in cabin is 25°C or more Maximum Hot when
temperature in cabin is 25°C or less
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OK:
- ON (when A/C is ON)
- OFF (when A/C is OFF)
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Q.
Is the check result normal?
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Intermittent malfunction (Refer to
GROUP 00 - How to Use Troubleshooting/Inspection Service Points
- How to Cope with Intermittent Malfunctions ).
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Replace the engine-ECU. When the
engine-ECU is replaced, write the chassis number (Refer to GROUP 00 -
Precautions Before Service - How to Perform Chassis Number Writing ). After replacing the
engine-ECU, register the injector identification code and learn fuel
injection. (Refer to GROUP 00 - Precautions Before Service -
What The Common Rail Engine Learns ).
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