C16004B - TroubleshootingC16004B-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
C16004B	There is a fault in the overheating protection record. The overheating protection record过热保护记录存在故障，过热保护记录	1. Continuous steering generates heat1.连续转向产生热量

Troubleshooting steps故障诊断步骤

①General inspection一般检查

1. Check whether the ambient temperature is too high.检查环境温度是否过高。 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 Move the vehicle to a cool area to cool down.将车辆移至阴凉处进行散热。

②Check the working condition of the electric power steering column assembly检查电动助力转向管柱总成工作状况

1. Ask the driver if the road is in good condition.询问驾驶员车辆行驶道路是否良好。 2. Ask the driver if there are long periods of continuous steering operation.询问驾驶员是否存在长时间连续的转向操作。 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 Avoid long and continuous steering operations.避免长时间连续的转向操作。

③Standing inspection静置检查

1. Let the vehicle sit for a period of time. After the vehicle has completely cooled down, check whether the fault code and symptoms have been eliminated.车辆静置一段时间，待车辆完全冷却后，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 Go to step 4.去步骤4。

④Replace 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。