Coolant Level Is Low
使用该步骤对冷却液液位低进行故障诊断与排除。 当下列其中一个诊断故障代码为激活状态时，也使用该步骤。
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| 发动机事件 | ||
|---|---|---|
| J1939 代码和描述 | 产生代码的状况 | 系统响应 |
| 111-17 发动机冷却液液位：低 - 最低严重程度 (1) | 发动机冷却液液位降至冷却液液位传感器以下已达到规定的延迟时间。 | 记录该代码。 |
| 111-1 发动机冷却液液位：低 - 最高严重程度（3） | ||
可能原因
- 冷却液液位低和/或冷却液泄漏
- 冷却液液位传感器
建议的措施
冷却液液位低和/或冷却液泄漏
- 检查冷却液液位。 如有需要，添加冷却液。
- 检查防冻液和水的混合是否正确。 参考操作和保养手册。
- 检查冷却系统有无泄漏。 立即修理所有泄漏。
- 检查冷却系统中有无空气。 参考系统操作/测试和调整以了解正确步骤。
冷却液液位传感器
如果怀疑冷却液液位传感器存在电气故障，请参阅故障诊断与排除, "冷却液液位 - 测试"中的详细信息。
Caterpillar Information System:
2011/12/19 A New Pipe Nipple Is Used in the Fuel Lines for G3606 and G3608 Engines {5479}
2012/01/12 A New High Pressure Fuel Pump and Adapter Are Used on C175-16 Petroleum Engines {1251, 1251, 1290}
C13 Engine for Combat and Tactical Vehicles Piston and Rings
C13 Engine for Combat and Tactical Vehicles Piston and Rings
C13 Engine for Combat and Tactical Vehicles Piston and Rings
2011/12/21 New Improved Power Train Control Processor Software Is Now Used on Certain Marine Engines {7610, 7620}
Cleaning Components with Carbon Dioxide (CO<SUB>2</SUB>) {0680, 1000, 7000} Cleaning Components with Carbon Dioxide (CO<SUB>2</SUB>) {0680, 1000, 7000}
Early Hour Wear of Piston Rings and Cylinder Liners due to Neglect of Air Cleaner Maintenance on Certain 3512C Petroleum Engines{1201, 1225} Early Hour Wear of Piston Rings and Cylinder Liners due to Neglect of Air Cleaner Maintenance on Certain 3512C Petroleum Engines{1201, 1225}
C9.3 Engines for Caterpillar Built Machines Fumes Disposal Filter - Remove and Install
3516C Generator Set Engines High Altitude Derate Occurrence
C15 and C18 Engines for Caterpillar Built Machines Temperature Sensor (Catalyst Inlet) - Remove and Install
C9.3 Engines for Caterpillar Built Machines Pressure Sensor (DPF) - Remove and Install
C1.5 and C2.2 Industrial Engines Crankcase Breather (Canister) - Replace
C2.6 and C3.3B Tier 2 and EU Stage 2 Engines for Caterpillar Built Machines Fuel System - Inspect
Air and Gas Starting for G3300B Engines{1451} Air and Gas Starting for G3300B Engines{1451}
2012/02/01 A New Air Hose and a New Solenoid Valve Manifold Are Used for the Air Shutoffs on Certain 3512C and 3516C Petroleum Engines {1078, 1078}
2011/12/21 Fuel Injection Pump on C3.3 and C4.4 (Mech) Generator Sets {1251}
3516C and C175-16 Engines Selective Catalytic Reduction Dosing Control System Operation
3516C and C175-16 Engines Selective Catalytic Reduction Warning Operation
3516C and C175-16 Engines Selective Catalytic Reduction Event Codes
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines Cylinder Head Valves
C2.6 and C3.3B Tier 2 and EU Stage 2 Engines for Caterpillar Built Machines Excessive Engine Oil Consumption - Inspect
2012/01/06 Air Compressor on 3054, 3054B, 3054C, 3054E, 3056, 3056E, C3.3, C3.4, C4.4, C4.4 (Mech), C6.6 and C7.1 Engines {1803}
C27 PET GEN SET Electric Power Generation and C27 KNOCKDOWN K Petroleum Power Train Package Generator Operation