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Instrument Cluster: Troubleshooting

INSTRUMENT CLUSTER TROUBLESHOOTING

Error Item Failure symptom Inspection items Detailed inspections Relevant Parts/Components
Screen display TFT-LCD screen does not turn on
  1. Connector attachments
  2. Components
  1. Check the connector attachments
  2. Check B+, IGN and GND wiring
  3. Check the components
 Connectors, wiring, fuses, dashboard
Warning light Airbag warning lamp malfunction
  1. Connector attachments
  2. C-CAN
  3. Components
  1. Check airbag + signal (connectors)
  2. Check C-CAN (ACU4) signal
  3. Check the FPC attachment inside the dashboard
 ACU Connectors, wiring, fuses, dashboard
Mode conversion Integrated driving mode malfunction
  1. Connector attachments
  2. Switch
  3. Components
  1. Check the switch input (connector)
  2. Check the switch signal input (disconnection or shorting)
  3. Check conversion with dashboard component
 Switch connector, wiring dashboard
Illumination Interior light brightness cannot be controlled.
  1. Connector attachments
  2. Switch
  3. Components
  1. Check if the light switch's input signal reaches the connector
  2. Check ILL- and DETENT signals
  3. Check the TAIL + signal input
 Switch connector, wiring dashboard
Warning Sound No dashboard alarm
  1. Connector attachments
  2. Car speakers
  3. Components
  1. Check the speaker output connector
  2. Check the car speakers
 Speaker connectors, wiring dashboard
Fuel indicator Faulty fuel gauge indication
  1. Connector attachments
  2. Fuel sender
  3. Components
  1. Check fuel input and GND connectors (open, short or input resistance values)
  2. Check fuel sender
 Fuel sender connector, wiring dashboard
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