Electrical › Audio entertainment system › Diagnosis
T-BOX不工作 · T00611508

 T-BOX not workingT-BOX不工作

①Check fuse检查保险丝
Graphic
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 whether the fuse IF26/IF34 in the electrical box on the instrument panel is normal.检查仪表板电器盒中保险丝IF26/IF34是否正常。
IF26:7.5A
IF34:10A
Are the test results normal?检查结果是否正常?
Yes → Go to step 2.是>>去步骤2。
No → Replace the fuse with the same specification.否>>更换相同规格的保险丝。
②Check the T-BOX assembly power line检查T-BOX总成电源线路
Graphic
1. Power status "ON".电源状态“ON”。
2. Use a digital multimeter to measure the voltage between pin 16 of the IP63 connector of the T-BOX assembly harness and ground.用数字万用表测量T-BOX总成线束接插件IP63的16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 → Go to step 3.是>>去步骤3。
No → Repair or replace the T-BOX assembly power harness.否>>维修或更换T-BOX总成电源线束。
③Check the T-BOX assembly IG1 power line检查T-BOX总成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 31 of the IP63 connector of the T-BOX assembly harness and ground.用数字万用表测量T-BOX总成线束接插件IP63的31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 → Go to step 4.是>>去步骤4。
No → Repair or replace the T-BOX assembly IG1 power harness.否>>维修或更换T-BOX总成IG1电源线束。
④Check the T-BOX assembly grounding circuit检查T-BOX总成接地线路
Graphic
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. Disconnect the T-BOX assembly harness connector IP63.断开T-BOX总成线束接插件IP63。
3. Use a digital multimeter to measure the resistance between pin 17 of the IP63 and ground.用数字万用表测量IP63的17号针脚与接地之间的电阻。
Standard resistance value: <1标准电阻值:<1 Ω
Are the test results normal?检查结果是否正常?
Yes → Go to step 5.是>>去步骤5。
No → Repair or replace the T-BOX assembly grounding harness.否>>维修或更换T-BOX总成接地线束。
⑤Replace T-BOX assembly更换T-BOX总成
1. Replace the T-BOX assembly and check whether the fault is eliminated.更换T-BOX总成,检查故障是否排除。
Are the test results normal?检查结果是否正常?
Yes → Fault resolved.是>>故障排除。
No → Find the cause from other fault symptoms.否>>从其他故障现象查找原因。
  Caution:注意:
♦  After replacing the T-BOX assembly, you need to use a diagnostic instrument to recalibrate the T-BOX assembly.更换T-BOX总成后,需用诊断仪对T-BOX总成重新标定。