Navigation System Symptom Troubleshooting - Picture is missing a color or tone or is an odd color
  1. Check for continuity between the appropriate terminals of navigation unit connector B (32P) and the navigation display unit 28P connector based on the missing color(s).
    Missing color
    Navigation unit connector B (32P)
    Navigation display unit 28P connector
    Wire color
    Blue
    B17
    22
    YEL
    Green
    B2
    9
    RED
    Red
    B1
    8
    WHT

Is there continuity?
YES -
Go to Step 7 .
NO -
There is an open in the circuit between the navigation display unit and the navigation unit. Check for poor connections or loose terminals at the navigation display unit and navigation unit. If a poor connection or loose terminal is found, replace the affected shielded harness.■