DTC B2282: Vehicle Speed Signal Malfunction: Procedure

1. Check if CAN communication DTCs are output.

   HINT: 

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

   OK

   CAN communication DTC is not output.

NG → See step   10 

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 / Combination Meter / Data List.
5. Check the Data List for proper functioning of the vehicle speed signal.
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed Meter	Vehicle speed/Min.: 0, Max.: 255	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   11 

OK: Go to next step 

1. Enter the following menus: Body Electrical / Power Source Control / Data List.
2. 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	Sop: Vehicle stopped Run: Vehicle running	-

   OK

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

NG → See step   4 

OK → See step   12 

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

OK: Go to next step 

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

OK: Go to next step 

1. Disconnect the F15 connector from the combination meter assembly.
   Fig 1: F15 Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F8-23 (SPD) - F15-3 (+S)	Always	Below 1 Ω
   F8-23 (SPD) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1

   Front view of wire harness connector (to Power Management Control ECU)

   *2

   Front view of wire harness connector (to Combination Meter Assembly)

NG → See step   8 

OK: Go to next step 

1. Remove the combination meter. Refer to REMOVAL .
   Fig 2: F15 Connector & Waveform

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reconnect the F15 connector to the combination meter assembly.
3. Reconnect the F8 connector to the power management control ECU.
4. Connect an oscilloscope to terminal F15-3 (+S) and body ground.
5. Turn the engine switch on (IG).
6. Turn the wheel slowly.
7. 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 (12 mph)

   OK

   The waveform is displayed as shown in the illustration.

   TEXT IN ILLUSTRATION
   
   

   *1	Component with harness connected (Combination Meter Assembly)

   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   13 

OK → See step   14 

1. Disconnect the F93 connector.
   Fig 3: F93 Connector & Combination Meter Assembly

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F15-3 (+S) - F93-57	Always	Below 1 Ω
   F15-3 (+S) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1

   Front view of wire harness connector (to Junction Block)

   *2

   Front view of wire harness connector (to Combination Meter Assembly)

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

OK: Go to next step 

1. Measure the resistance according to the value(s) in the table below.
   Fig 4: F93 & F8 Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F8-23 (SPD) - F93-37	Always	Below 1 Ω
   F8-23 (SPD) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1

   Front view of wire harness connector (to Junction Block)

   *2

   Front view of wire harness connector (to Power Management Control ECU)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - JUNCTION BLOCK) 

OK → REPLACE JUNCTION BLOCK