DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Data List.
5. According to the display on the Techstream, compare the actual vehicle speed with the Data List value.
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed Meter	Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost same as actual vehicle speed (Speedometer tester)	-

   OK

   The Data List value is approximately the same as the actual vehicle speed.

NG → See step   7 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Power Source Control / Data List.
5. According to the display on the Techstream, read the Data List.
   POWER SOURCE CONTROL
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed Signal	Vehicle moving or stationary/Stop or Run	Run: Vehicle moving at 5 km/h (3 mph) or more Stop: Vehicle stopped	-

   OK

   Stop (vehicle stopped) or Run (vehicle driven) appears on the screen according to the vehicle speed.

NG → See step   3 

OK → See step   8 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the D89 power management control ECU connector.
2. Disconnect the D18 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D89-23 (SPD) - D18-10 (+S)	Always	Below 1 Ω
   D89-23 (SPD) or D18-10 (+S) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Using an oscilloscope, check the vehicle speed input signal waveform from the combination meter at the terminal of the power management control ECU.
   Fig 1: Inspecting D89 Power Management Control ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *a

   Component with harness connected (Power Management Control ECU)

   -

   -

   1. Check the signal waveform according to the condition(s) in the table below.
      Fig 2: Identifying Waveform 1

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Frequency

      Tester Connection	Tool Setting	Condition	Specified Condition
      D89-23 (SPD) - Body ground	5 V/DIV., 10 ms./DIV.	Engine switch on (IG), vehicle being driven at approx. 5 km/h (3 mph)	Correct waveform is as shown in illustration (Fig 2)

NG → See step   9 

OK → See step   10