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Toyota Sienna Service Manual: Display does not Dim when Light Control Switch is Turned ON

Toyota Sienna Service Manual / Navigation / Navigation system / Diagnostic trouble code chart / Display does not Dim when Light Control Switch is Turned ON

INSPECTION PROCEDURE

1 CHECK IMAGE QUALITY SETTING

 CHECK IMAGE QUALITY SETTING

  1. Enter the display adjustment screen by pressing the "DISPLAY" switch.
  2.  Turn the light control switch to the TAIL position.
  3.  Check if "DAY MODE" on the display adjustment is ON.

OK: "DAY MODE" is ON.

TURN "DAY MODE" SETTING OFF

2 CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)

CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)

  1. Enter the "Display Check" mode (Vehicle Signal Check).
  2.  Check that the display changes between ON and OFF according to the light control switch operation.

OK

OK

HINT: The display is updated once per second. It is normal for the display to lag behind the actual switch operation.

REPLACE RADIO AND NAVIGATION ASSEMBLY

Illumination for Panel Switch does not Come on with Tail Switch ON
INSPECTION PROCEDURE 1 CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) Enter the "Display Check" mode (Vehicle Signal Check Mode).  Check that the display changes between ON and OF ...

Panel Switches do not Function
INSPECTION PROCEDURE 1 CHECK PANEL SWITCH Check for foreign matter around the switches that might prevent operation. OK: No foreign matter is found 2 CHECK PANEL SWITCH (DISPLAY CHECK MODE ...

Other materials:

Diagnosis system
1. CHECK DLC3 (a) The vehicle's ECM uses the ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. HINT: Connect the cable of the intelligent tester to the DLC3, turn the ignition switch to the ON position and atte ...

Open or Short Circuit in ABS Solenoid Relay Circuit
DESCRIPTION The ABS solenoid relay is built in the brake actuator assembly. This relay supplies power to each ABS solenoid. If the initial check is OK, after the ignition switch is turned to the ON position, the relay goes on. WIRING DIAGRAM Refer to DTCs C0226/21, C0236/22, C0246/23 ...

Removal
1. Remove engine under cover no.1 2. Disconnect cable from negative battery terminal 3. Drain automatic transaxle fluid (see page ax-131) 4. Remove automatic transaxle oil pan subassembly (a) Remove the 18 bolts, oil pan and gasket. NOTICE: Some fluid will remain in the oil pan. ...

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