Motorized Valve - Test
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| 代码 | 代码说明 | 状况存在 | 注释 |
| 523580-2 | 进气节气门反馈错误 | 蓄电池电压正常。 | 未校正节气门位置偏差达 20 次 进气节气门 100% 开启 警告级别 2 发动机减额 |
| 523582-3 | 进气节气门升程传感器：高 | 蓄电池电压正常 传感器电源电压正常。 |
传感器或 ECM 内部电路对 +B 短路。 进气节气门升程传感器电压为 4.9 V 或以上 发动机减额 进气节气门 100% 开启 警告级别 2 |
| 523582-4 | 进气节气门升程传感器：低 | 传感器或 ECM 内部电路对接地短路。 进气节气门升程传感器电压为 0.1 V 或以下 发动机减额 进气节气门 100% 开启 警告级别 2 |
注: 进气节气门仅在进行主动再生时操作。 修理完成后，执行 “Cat ET 维修特性”中的“进气节气门超越”
注: -3 代码检测到传感器或导线线束开路或 +B 短路。 -4 代码检测到传感器或线束对接地短路。 523580-2 代码也经常由线束故障导致。
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| 图 1 | g03836327 |
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| 故障诊断与排除测试步骤 | 值 | 结果 |
1. 检查电气接头和配线 A. 检查接头是否完全安装在传感器上。 B. 检查接头的导线是否未在接头处拉紧，有无摩擦或断裂。 C. 检查接头触针和插座是否损坏，以及是否正确对齐。 D. 检查传感器与发动机 ECM 之间的线束是否存在腐蚀、磨损和夹点。 检查发动机 ECM 触针是否弯曲，接头是否完全就位。 E. 执行 ET 中的“摇摆测试”，以检查进气节气门接头和 ECM 接头之间的线束的导通性。 |
连接松动，布线不良，导线损坏 |
结果：接头或导线有故障。 修理或更换发动机线束。 有关修理传感器接头的更多信息，请参阅专门说明书, RCHS7774。 有关修理发动机 ECM 接头的更多信息，请参阅专门说明书, RCHS7297。 结果：没有发现故障。 停止 |
如果没有发现问题，请在更换进气节气门之前联系您的 TC，因为这些代码很可能与线束故障有关。
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