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

1. Check for CAN communication system DTCs. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

   HINT: 

   If the DTCs for the CAN communication system malfunction are output, inspect those DTCs first.

   Result

   Result	Proceed to
   CAN communication DTC is not output	A
   CAN communication DTC is output	B

B → See step   6 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Enter the following menus: Body Electrical / Combination Meter / Data List.
4. Check the values by referring to the values in the table below.
   COMBINATION METER
   
   

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

   OK

   Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).

NG → See step   7 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Read the Data List according to the displays on the Techstream.
   MAIN BODY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed Signal	Vehicle speed signal / STOP or RUN	STOP: Vehicle is stopped Run: Vehicle is running	-

   OK

   "STOP" (Vehicle is stopped) and "OFF" (Vehicle is running) appear on the screen.

4. Proceed to the next step based on the inspection result.

   Result

   Result	Proceed to
   OK	A
   NG	B

B → See step   4 

A → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) 

1. Disconnect the E46 meter connector.
   Fig 1: Identifying E46 Meter And 2E Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2E connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   2E-1 (SPD) - E46-36 (+S)	Always	Below 1 Ω
   2E-1 (SPD) or E46-36 (+S) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - INSTRUMENT PANEL JUNCTION BLOCK) 

OK: Go to next step 

1. Check the output waveform.
   Fig 2: Inspecting Combination Meter Terminals & Signal Waveform

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Remove the combination meter with the connector(s) still connected. Refer to REMOVAL .
   2. Connect the oscilloscope to terminals E46-36 (+S) and body ground.
   3. Turn the engine switch on (IG).
   4. Turn the wheel slowly.
   5. Check the signal waveform according to the condition(s) in the table below.

      Item	Condition
      Tool setting	5 V/DIV., 20 ms./DIV
      Vehicle condition	Driving at approx. 20 km/h

      OK

      The waveform is displayed as shown in the illustration.

      HINT: 

      When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.

NG → See step   8 

OK → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)