C7 and C9 On-Highway Engines Caterpillar


0232-03 5 Volt Supply voltage high (21)

Usage:

C9 9DG
产生此代码的情况:

发动机控制模块 (ECM) 检测到以下情况:

  • 5 伏电源高于 5.16 VDC 超过一秒。

  • 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 (870.2 psi)

  • 喷油驱动驱动电路的电流设为 40%。

  • 大气压力 100 kPa (15.0 psi)

  • 增压压力 0 kPa (0.0 psi)

  • 发动机机油压力 600 kPa (87.0 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

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