B2283

THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): B2283: Vehicle Speed Sensor Malfunction
B2283 - Vehicle Speed Sensor Malfunction

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.





WIRING DIAGRAM





INSPECTION PROCEDURE

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 B2282

NG -- GO TO CAN COMMUNICATION SYSTEM CAN Communication System
OK -- Continue to next step.

2. CHECK SPEEDOMETER OPERATION B2282

NG -- GO TO METER / GAUGE SYSTEM (Speedometer Malfunction) Speedometer Malfunction
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) B2271

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) B2271

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (COMBINATION METER - POWER MANAGEMENT CONTROL ECU) B2282

NG -- CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 1 JUNCTION BLOCK)
OK -- Continue to next step.

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

Power Source Control:

OK:

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

NG -- GO TO METER / GAUGE SYSTEM (Speedometer Malfunction) Speedometer Malfunction
OK -- Continue to next step.

7. CHECK SPEED SIGNAL INPUT STATUS B2282

NG -- GO TO METER / GAUGE SYSTEM (Speed Signal Circuit) Speed Signal Circuit

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Removal

8. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 1 JUNCTION BLOCK) B2282

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - NO. 1 JUNCTION BLOCK)
OK -- Continue to next step.

9. CHECK HARNESS AND CONNECTOR (NO. 1 JUNCTION BLOCK - POWER MANAGEMENT CONTROL ECU) B2282

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

OK -- REPLACE NO. 1 JUNCTION CONNECTOR