Toyota Sienna Service Manual: Combination meter

Meter Illumination does not Dim at Night

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 EC ...

Removal

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working. 2. REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY ...

Other materials:

Operation check
1. REMOVE CHECK FUNCTION  Check that the key reminder warning buzzer sounds.  With the driver side door closed, insert the key into the ignition key cylinder and then turn the key to LOCK or ACC.  Check that the buzzer sounds intermittently if the driver side door ...

Open in Rear Curtain Shield Squib LH Circuit
DTC B1636/88 Open in Rear Curtain Shield Squib LH Circuit DESCRIPTION The rear curtain shield squib LH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly LH. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B1636/88 ...

How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS 3 CHECK AND CLEAR DTCs Refer to the diagnostic check/clear 4 PROBLEM SYMPTOM CONFIRMATION 5 SYMPTOM SIMULATION 6 CHECK DTC 7 CHECK IF THE SAME SYMPTOM APPEARS IN THE NAVIGATION SYSTEM Refer to the navigation system 8 PROBLE ...