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Toyota Sienna Service Manual: Meter Illumination does not Dim at Night

Toyota Sienna Service Manual / Meter / Meter / gauge system / On-vehicle inspection / Meter Illumination does not Dim at Night

DESCRIPTION

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK MULTIPLEX COMMUNICATION SYSTEM

  1. Check if MULTIPLEX communication DTC is output

Result

Result

2 CHECK DTC

  1. Check if the DTC B1244 is output

Result

Result

3 PERFORM ACTIVE TEST BY INTELLIGENT TESTER

  1. Operate the intelligent tester according to the steps on the display and select "DATA LIST".

MAIN BODY

MAIN BODY

OK: The meter illumination is dimmed when the DIMMER SIG is ON.

CHECK LIGHTING SETTING

4 REPLACE COMBINATION METER ASSEMBLY

OK: The operation of the combination meter assembly returns to normal.

END

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 ...

Combination meter
COMPONENTS ...

Other materials:

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE V-BANK COVER SUB-ASSEMBLY (See page EM-28) 3. REMOVE PURGE VSV (a) Disconnect the purge VSV connector. (b) Disconnect the 2 purge line hoses from the purge VSV. (c) Remove the purge VSV from the air cleaner hose. (d) R ...

Inspection
1. INSPECT OIL PUMP ASSEMBLY (a) Turn the drive gear with the 2 screwdrivers and make sure that it rotates smoothly. NOTICE: Be careful not to damage the oil seal lip. 2. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY (a) Push the driven gear to one side of the body. (b) Using ...

Control Module Performance
DTC P0607 Control Module Performance DESCRIPTION The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standards, the ECM will illuminate the MIL and set a DTC immediately ...

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