Troubleshooting › Electric power steering system › Diagnosis
C160016-故障诊断 · T00607786

 C160016 - TroubleshootingC160016-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
C160016
There is a fault in the power supply and the battery voltage is too low.供电电源存在故障，电池电压过低
1. Poor connection between battery and EPS1.电池与EPS连接不良
2. 12V battery drained (flat)2.蓄电池馈电
Troubleshooting steps故障诊断步骤
①General inspection一般检查
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. Check the electric power steering column harness for damage, breakage, loose connection, etc.检查电动助力转向管柱线束是否存在损坏、断裂、虚接等现象。
3. Check the electric power steering column harness connector for loose connection or damage.检查电动助力转向管柱线束接插件是否存在虚接、损坏等现象。
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 Repair or replace the electric power steering column harness or connector.维修或更换电动助力转向管柱线束或接插件。
②Check 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 4.去步骤4。
No否 Go to step 3.去步骤3。
③Check 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 Charge the 12V battery and replace it if necessary.对蓄电池进行充电，必要时更换蓄电池。
No否 Inspect and repair DCDC and related lines.检修DCDC及相关线路。
④Check 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 5.去步骤5。
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。
⑤Check 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 6.去步骤6。
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。
⑥Replace 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。