LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2009 >> GS 450h >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> LEXUS Link System (Diagnostic Codes & Circuit Tests) >> LEXUS Link System >> DTC 4-1: Red LED Error >> Description

DTC 4-1: Red LED Error: Description

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

DTC No. DTC Detection Condition Trouble Area
4-1 Communication or communication line is abnormal between mayday ECU and map light (mayday switch)
  • Mayday ECU
  • Map light assembly
  • Mayday switch assembly
  • Wire harness