Toyota Venza manuals

Toyota Venza: Vehicle Speed Sensor Malfunction (B2283)

DESCRIPTION

The skid control ECU converts wheel speed sensor signals into 4-pulse signals and sends them to the combination meter. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the power management control ECU. The power management control ECU determines the vehicle speed based on the frequency of these pulse signals.

DTC No.

DTC Detection Condition

Trouble Area

B2283

Both conditions are met:

  • Over-deceleration in vehicle speed
  • Vehicle speed and engine speed do not match
  • AM2 fuse
  • Combination meter
  • Power management control ECU
  • Wire harness or connector

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

When the power management control ECU is replaced with a new one and the cable from the negative (-) battery terminal is connected, the power source mode becomes the on (IG) mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM



NG

GO TO CAN COMMUNICATION SYSTEM


OK

2.

CHECK SPEEDOMETER OPERATION



NG

GO TO METER / GAUGE SYSTEM (Speedometer Malfunction)


OK

3.

CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)



NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)


OK

4.

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)



NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)


OK

5.

CHECK HARNESS AND CONNECTOR (COMBINATION METER - POWER MANAGEMENT CONTROL ECU)



NG

GO TO STEP 8


OK

6.

READ VALUE USING TECHSTREAM

(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 / Power Source Control / Data List.

(e) Read the Data List according to the display on the Techstream.

Power Source Control

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Vehicle Speed Signal

Vehicle speed signal/Stop or Run

Stop: Vehicle stopped

Run: Vehicle running

-

OK:

Stop (vehicle is stopped) and Run (vehicle is running) appear on the screen.


NG

GO TO METER / GAUGE SYSTEM (Speedometer Malfunction)


OK

7.

CHECK SPEED SIGNAL INPUT STATUS



OK

REPLACE POWER MANAGEMENT CONTROL ECU


NG

GO TO METER / GAUGE SYSTEM (Speed Signal Circuit)

8.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 1 JUNCTION BLOCK)



NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - NO. 1 JUNCTION BLOCK)


OK

9.

CHECK HARNESS AND CONNECTOR (NO. 1 JUNCTION BLOCK - POWER MANAGEMENT CONTROL ECU)



OK

REPLACE NO. 1 JUNCTION CONNECTOR


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 JUNCTION BLOCK - POWER MANAGEMENT CONTROL ECU)

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