What Causes the Automatic Transmission Gear Indicator Light Not to Illuminate?
1 Answers
The reasons why the automatic transmission gear indicator light does not illuminate are as follows: 1. Contact issues: Poor contact caused by moisture and slight corrosion of the gear shift switch; at this time, it is necessary to check whether the electronic control unit, dashboard wiring, and related components are scratched, burned, or have poor contact. 2. Short circuit or water ingress: Abnormal display of the automatic transmission gear may be due to a short circuit or water ingress. It is necessary to check whether the gear shift switch is short-circuited or open-circuited and whether it has been exposed to water. You can connect a diagnostic computer to diagnose whether it is an electronic fault of the gear shift switch or an electrical fault of the instrument display, and then replace the damaged parts accordingly.