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Inspection Procedure

DISPLAY CHECK MODE (VEHICLE SIGNAL CHECK)
1. Perform display check.
  1. Set up diagnosis system and read result of display vehicle signal check mode.
    Standard: Input signal is normal (TAIL)
1. OK: Go to step 3
2. NG: Go to next step.

INSPECT NAVIGATION RECEIVER ASSY (ILL+,ILL-)

Remove the navigation receiver assy and disconnect the connector.

Check voltage.

Measure voltage between terminals ILL+ and ILL- of navigation receiver assy at each conditions, as shown in HEADLIGHT DIMMER SWITCH POSITION CONDITION .

Fig 1: Locating ILL+ (+) And ILL- (-) Connector Terminals

G02915903

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

HEADLIGHT DIMMER SWITCH POSITION CONDITION

Headlight dimmer switch position	Condition
OFF	0V
TAIL or HEAD	10 - 14V

Check continuity.
1. Check that the continuity exists between terminal ILL- of navigation receiver assy and body ground.
  Standard: Continuity exists

OK: CHECK AND REPLACE NAVIGATION RECEIVER ASSY
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK SETTING
1. Check the settings.
  1. Turn the ignition switch to ON.
  2. Turn the power switch of the navigation receiver assy to ON to display the map.
  3. Operate the navigation receiver assy, and check that "The color of night screen is standard" is set at the navigation condition setting.
    Standard: The setting is normal
1. NG: THE SETTING IS ABNORMAL
2. OK: CHECK AND REPLACE NAVIGATION RECEIVER ASSY