Troubleshooting › Electric power steering system › Diagnosis
C160017-故障诊断 · T00607787

 C160017 - TroubleshootingC160017-故障诊断

Fault code description故障码说明
DTC故障码(DTC)
Fault code description故障码描述
Possible cause of failure可能故障原因
C160017
There is a fault in the power supply and the battery voltage is too high.供电电源存在故障，电池电压过高
1. 12V battery voltage is too high1.蓄电池电压过高
Troubleshooting steps故障诊断步骤
①Check 12V battery voltage检查蓄电池电压
1. Power state is "OFF", disconnect the negative terminal of the 12V battery.电源状态“OFF”，断开蓄电池负极。
2. Use a digital multimeter to measure the voltage between the positive and negative terminals of the 12V battery.用数字万用表测量蓄电池正、负极之间的电压。
Standard voltage value: about 12.5V标准电压值：约12.5V
Are the test results normal?检查结果是否正常？
Yes是 Go to step 2.去步骤2。
No否 Discharge the 12V battery and replace it if necessary.对蓄电池进行放电，必要时更换蓄电池。
②Check DCDC output voltage检查DCDC输出电压
1. Power status "ON".电源状态“ON”。
2. Use a digital multimeter to measure the voltage between the positive and negative terminals of the 12V battery.用数字万用表测量蓄电池正、负极之间的电压。
Standard voltage value: about 14V标准电压值：约14V
Are the test results normal?检查结果是否正常？
Yes是 Go to step 3.去步骤3。
No否 Inspect and repair DCDC and related lines.检修DCDC及相关线路。
③Check the electric power steering column 12V battery power circuit检查电动助力转向管柱蓄电池电源线路
Graphic
1. Power status "OFF".电源状态“OFF”。
2. Use a digital multimeter to measure the voltage between pin 1 of the IP26 electric power steering column harness connector and ground.用数字万用表测量电动助力转向管柱线束接插件IP26的1号针脚与接地之间的电压。
Standard voltage value: about 12.5V标准电压值：约12.5V
Are the test results normal?检查结果是否正常？
Yes是 Go to step 4.去步骤4。
No否 Repair or replace the electric power steering column 12V battery power harness.维修或更换电动助力转向管柱蓄电池电源线束。
④Check the electric power steering column IG1 power circuit检查电动助力转向管柱IG1电源线路
Graphic
1. Power status "ON".电源状态“ON”。
2. Use a digital multimeter to measure the voltage between pin 1 of the IP27 electric power steering column harness connector and ground.用数字万用表测量电动助力转向管柱线束接插件IP27的1号针脚与接地之间的电压。
Standard voltage value: about 14V标准电压值：约14V
Are the test results normal?检查结果是否正常？
Yes是 Go to step 5.去步骤5。
No否 Repair or replace the electric power steering column IG1 power harness.维修或更换电动助力转向管柱IG1电源线束。
⑤Replace the electric power steering column更换电动助力转向管柱
1. Replace the electric power steering column with a new one and check whether the fault code and symptoms are eliminated.更换新的电动助力转向管柱，检查故障码及症状是否排除。
Are the test results normal?检查结果是否正常？
Yes是 Fault resolved.故障排除。
No否 Look for causes from other symptoms.从其他症状查找原因。
  Caution:注意：
♦  After replacing the electric power steering column, you need to use a diagnostic instrument to recalibrate the electric power steering column.更换电动助力转向管柱后，需用诊断仪对电动助力转向管柱重新标定。