0232-04 5 Volt Supply voltage low (21)
产生此代码的情况:
发动机控制模块 (ECM) 检测到以下情况:
- 5 伏电源低于 4.84 VDC 超过 1 秒。
- ECM 至少已通电三秒钟。
系统响应:
ECM 会将所有压力传感器设为下述缺省值:
- 喷油驱动压力 6 MPa (870 psi)
- 喷油驱动驱动电路的电流设为 40%。
- 大气压力 100 kPa (15 psi)
- 增压压力 0 kPa (0 psi)
- 发动机机油压力 600 kPa (87 psi)
ECM 将使用默认的扭矩图表。 卡特彼勒电子技师 (ET) 上所有压力传感器状态的旁边都会显示"诊断"。
该故障诊断代码为激活状态时,发动机功率可能偏低。
测试步骤 1. 进行以下的诊断步骤: 5 伏发动机压力传感器电源电路 - 测试
结果:
- 正常 - 停止
Caterpillar Information System:
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