FixVault

DTC 4-2 Green LED Error: Description

This DTC is output when one of the following occurs: 1) the Mayday ECU is malfunctioning; 2) the green LED is malfunctioning; or 3) the wire harness between the Mayday ECU and the map light (Mayday switch) is open or short.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
4-2 Communication or communication line is abnormal between Mayday ECU and map light (Mayday switch)
  • Mayday ECU
  • Map light assembly
  • Mayday switch assembly
  • Wire harness