DESCRIPTION The combination meter assembly receives vehicle speed signals from the skid control ECU (brake booster with master cylinder assembly) via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU (brake booster with master cylinder assembly). The skid control ECU (brake booster with master cylinder assembly) supplies power to the vehicle speed sensor. The skid control ECU (brake booster with master cylinder assembly) detects vehicle speed signals based on pulses of the voltage. HINT: Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Check if CAN communication DTCs are output. Click here
(a) Check if electronically controlled brake system DTCs are output. Chassis > ABS/VSC/TRAC > Trouble Codes
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Combination Meter / Active Test. (e) Perform the Active Test according to the display on the Techstream. Body Electrical > Combination Meter > Active Test
OK: Speedometer indication is normal.
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Toyota Avalon Service & Repair Manual > Meter / Gauge System(for Gasoline Model): Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTC (METER / GAUGE SYSTEM) (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Combination Meter / Trouble Codes. Body Electrical > Combination Meter > Trouble Codes ...