C15 and C18 Engines for China On-Highway Phase IV Caterpillar


Diesel Particulate Filter Temperature Is Low

Usage:

C18 BE2
发动机控制模块(ECM)监控柴油微粒滤清器(DPF)的进气温度。 当条件满足时,ECM 激活适用的代码。

注: 关于维修功能方面的信息,参考故障排除, "Cat 电子技师维修功能"。

在执行以下步骤之前,使用 Cat 电子技师清除所有"现行"代码。 参考故障排除, "诊断能力 - 清除现行机载诊断(OBD)代码"以了解关于清除"现行"代码的更多信息。

表 1
诊断故障代码    
CDL 代码     J1939 代码     代码说明
(代码说明可能不同)    
注释    
E1014(2)     3242-18     低 DPF #1 进气温度     后处理再生装置(ARD)已经点火,并且 ARD 检测到低 DPF 进口温度。

主动再生立即停用。 发动机功率减额。 记录该代码。 在循环 ECM 电源前,此代码始终处于现行状态。 以下情况可导致此代码产生:

ARD 出口和 DPF 进口之间的排气管路断开,和/或 DPF 进口温度传感器出故障。    
遵循故障排除步骤来确定故障根源。    



图 1g02402880

(1) 卡箍

(2) 进口段

(3) 排气管路

(4) 卡箍

(5) DPF

(6) ARD 燃烧盖

表 2
故障排除测试步骤     数值     结果    

1. 检查排气管路

A. 认真检查 ARD 出口和 DPF 进口之间的排气管路。 查看有无以下故障:

1. 管路缺失、管路开裂或管路断开
2. 卡箍断裂或缺失
   

管路损坏或缺失
   

结果:管路未损坏或缺失。

转至测试步骤 2。

结果:管路损坏或缺失。

进行必要的修理。 转至测试步骤 2。
   

2. 检查 DPF 进口温度传感器和配线

A. 认真检查 DPF 进口温度传感器配线有无损坏。

B. 认真检查 DPF 进口温度传感器有无损坏。
   

配线或传感器损坏
   

结果:配线和传感器未损坏。

转至测试步骤 3。

结果:配线和传感器损坏。

进行必要的修理。 转至测试步骤 3。
   

3. 执行 ARD Ignition Test(ARD 点火测试)

A. 连接到 Cat 电子技师。

B. 选择 Diagnostics(诊断)栏。

C. 选择 Diagnostic Tests(诊断测试)栏。

D. 选择 ARD Ignition Test(ARD 点火测试)栏。

如果 DPF 烟灰负载高于 80%,则不能执行 ARD Ignition Test(ARD 点火测试)。 当 DPF 烟灰负载高于 80% 时,必须利用 Cat 电子技师执行手动 DPF 再生。
   

测试成功
   

结果:ARD Ignition Test(ARD 点火测试)成功。

将发动机重新投入使用。

结果:ARD Ignition Test(ARD 点火测试)失败。

更换 DPF 进口温度传感器。 重复 ARD Ignition Test(ARD 点火测试)。
如果 ARD Ignition Test(ARD 点火测试)成功,则将发动机重新投入使用。

如果 ARD Ignition Test(ARD 点火测试)失败,则对产生的代码进行故障排除。
   

按所列步骤顺序完成以上步骤。

如需进一步帮助,请联系当地 Cat 代理商的技术通信员(TC),您的 TC 可以通过代理商解决方案网络(DSN)与您交谈。

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