DTC 4-7 EMERGENCY, VOL+ or VOL- Button has Connection Error: Description
This DTC is output when one of the following occurs: 1) the Mayday ECU is malfunctioning; 2) the map light assembly is malfunctioning; 3) the Mayday switch is malfunctioning; or 4) the wire harness between the Mayday ECU and the map light is open or short.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 4-7 | Communication or communication line is abnormal between Mayday ECU and map light or Mayday switch |
|