DESCRIPTION If the sliding function and tilt function do not operate, there may be a malfunction in the sliding roof ECU power source circuit. WIRING DIAGRAM 
CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE
(a) Use the Data List to check if the ignition switch signal is functioning properly. Click here
OK: The Techstream displays as shown in the table according to the operation of each switch.
(a) Disconnect the W3 ECU connector. (b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Meter / Gauge System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the meter / gauge system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT BATTERY VOLTAGE (a) Measure the battery voltage with the ignition switch off. Standard voltage: 11 to 14 V If the voltage is be ...
