Toyota RAV4 manuals

Toyota Sienna Service Manual: Operating Light Control Rheostat does not Change Light Brightness

Toyota Sienna Service Manual / Meter / Meter / gauge system / On-vehicle inspection / Operating Light Control Rheostat does not Change Light Brightness

DESCRIPTION

The meter CPU receives signals for adjusting illumination on the meter from this circuit. The meter CPU detects the illumination level selected by the user according to the position of the rheostat knob.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 READ VALUE OF INTELLIGENT TESTER (LIGHT RHEOSTAT)

  1. Connect the intelligent tester to the DLC3.
  2.  Turn the switch to the ON position.
  3.  Turn the tester ON.
  4.  Enter the following menus: DIAGNOSIS / OBD/MOBD / METER / DATA LIST.
  5.  Check the values by referring to the table below.

METER:

METER

OK: Light brightness displayed on the tester is almost the same as the actual light brightness.

REPLACE COMBINATION METER ASSEMBLY

2 CHECK HARNESS AND CONNECTOR (LIGHT CONTROL RHEOSTAT CIRCUIT)

CHECK HARNESS AND CONNECTOR (LIGHT CONTROL RHEOSTAT CIRCUIT)

  1. Disconnect the C10 connectors.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

  1. Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

REPLACE COMBINATION METER ASSEMBLY

Driver Side Seat Belt Warning Light does not Operate
DESCRIPTION When turning the ignition switch to the ON position, the combination meter assembly communicates with the supplemental restraint system by the multiplex communication system. Unless ...

Meter Illumination is Always Dark
DESCRIPTION  Confirm that the vehicle is equipped with the optitron meter, then check this circuit. The combination meter assembly receives a auto dimmer signal from the body ECU by t ...

Other materials:

Park / Neutral Position Switch Circuit
DESCRIPTION The clearance warning ECU receives the reverse or park position signal from the park / neutral position switch. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT CLEARANCE WARNING ECU Disconnect the C9 connector from the clearance warning ECU.  Measure the voltage ...

Manual headlight leveling dial (vehicles with discharge headlights)
The level of the headlight aim can be adjusted according to the number of passengers and the loading condition of the vehicle. Raises the level of the headlights Lowers the level of the headlights Guide to dial settings Daytime running light system (if equipped) Bulb type: To ...

License plate light assembly
COMPONENTS REMOVAL 1. REMOVE BACK DOOR GARNISH CENTER 2. REMOVE BACK DOOR SIDE GARNISH LH 3. REMOVE BACK DOOR SIDE GARNISH RH 4. REMOVE BACK DOOR STRAP COVER 5. REMOVE BACK DOOR PULL STRAP 6. REMOVE BACK DOOR TRIM BOARD ASSEMBLY 7. REMOVE BACK DOOR GARNISH SUB-ASSEMBLY OUTSIDE 8. RE ...

В© 2011-2019 Copyright www.tsienna.net