Navigation System Symptom Troubleshooting - Rearview camera does not come on or work properly

  1. Turn the ignition switch to ON (II), and measure the voltage between navigation display unit 28P connector and body ground according to the table.
    Navigation display unit connector
    Wire color
    No. 11
    GRY
    No. 12
    RED
    No. 13
    WHT
    No. 26
    GRN
    No. 27
    BLK
    No. 28
    BRN

Is there 0.5 V or more?
YES -
Repair short to power in the wire between the navigation display unit and the rearview camera, or replace the appropriate shielded harness.■
NO -
Go to Step 8 .
  1. Turn the ignition switch to LOCK (0).
  1. Reconnect the rearview camera 6P connector.
  1. Substitute a known-good navigation unit and check the rearview camera image in reverse.
Is the rearview image OK?
YES -
Replace the original navigation unit. ■
NO -
Replace the rearview camera. ■
  1. Press the Return in the upper right corner of the screen to return the main menu, then go to Version.
  1. Check the model code that is displayed.
Is the correct navigation unit model code displayed for this vehicle?
YES -
Go to Step 13 .
NO -
The wrong navigation unit is installed. Replace the navigation unit with the correct part. ■
  1. Remove the DVD disc from the navigation unit and check the label color of the DVD disc.
Is the DVD disc label white (or possibly gray for Canada)?
YES -
Reinsert the DVD disc, and go to Step 4 .
NO -
Replace the DVD disc with the correct color. See the Obtaining a Navigation DVD in the General Troubleshooting Information.