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Shift Indicator Does Not Work (2016 2017 2018: 9-Speed A/T)

Probable cause(s)

F-CAN communication line error
TCM defective
Gauge control module defective

NOTE:

Check the F-CAN communication line - Refer to: F-CAN Circuit Troubleshooting(9-Speed A/T) (2016 2017 2018), or F-CAN Circuit Troubleshooting(9-Speed A/T) (2019 2020 2021), .
Check the F-CAN communication line by using the gauge control module self-diagnostic function - Refer to: Gauges Self-Diagnostic Function (2019 2020 2021) or Gauges Self-Diagnostic Function (2016 2017 2018) .
Check the indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function - Refer to: Gauges Self-Diagnostic Function (2019 2020 2021) or Gauges Self-Diagnostic Function (2016 2017 2018) .