Air Conditioning E11 - Recirculation Sensor (Open Circuit)
参考关于传感器的正确位置，请参阅系统操作, "空调系统"。
- 测量再循环传感器的电阻值。 请参阅"技术规格"。 转至步骤 2。
- 如果电阻值不正确，请参阅步骤 3。 如果电阻值正确，请参阅步骤 4。
- 更换再循环传感器。
- 断开传感器上的接头，并测量接头 GN/YL 和 PK/GN 间的电压。 请参阅"技术规格"。 转至步骤 5。
- 如果电压值不正确，请参阅步骤 6。 如果电压值正确，请参阅步骤 7。
- 检查并修理接头和控制面板间的线束。 另外，检查系统电源。
- 安装传感器，并测量控制面板端子 10 和 11 间的电压。 请参阅"技术规格"。 转至步骤 8。
- 如果电压值不正确，请参阅步骤 9。 如果电压值正确，请参阅步骤 10。
- 检查并修理接头和控制面板间的线束。
- 更换控制面板。
再循环传感器内电阻
- 0 °C (32 °F) ... 1.645 kΩ
- 25 °C (77 °F) ... 5 kΩ
接头间的电压 ... 5.0 V
端子间的电压
- 10 °C (50 °F) ... 3.41 V
- 20 °C (68 °F) ... 2.87 V
- 25 °C (77 °F) ... 2.59 V
- 30 °C (86. °F) ... 2.32 V
- 20 °C (68 °F) ... 2.87 V
Caterpillar Information System:
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