DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction [09/2014 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power 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 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost same as actual vehicle speed (Speedometer tester)	-

   OK

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

Result:  NG

NG 

GO TO METER / GAUGE SYSTEM (Speedometer Malfunction) 

(Refer to Speedometer Malfunction [09/2014 - 10/2015] or Speedometer Malfunction [10/2015 - ] )

Result:  OK

OK 

See step  2

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 being driven or stopped/Stop or Run	Stop: Vehicle stopped Run: Vehicle being driven at 5 km/h (3 mph) or more	-

   OK

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

Result:  OK

OK 

GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] )

Result:  NG

NG 

See step  3

See step  1 See step  1

Result:  NG

NG 

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

Result:  OK

OK 

See step  4

See step  2 See step  2

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  5

1. Disconnect the N93 connector from the power management control ECU.
2. Disconnect the N40 connector from the combination meter assembly.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N91-16 (SPDI) - N40-19 (+S)	Always	Below 1 Ω
   N91-16 (SPDI) or N40-19 (+S) - Body ground		10 kΩ or higher

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  6

1. Reconnect the power management control ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Reconnect the N40 combination meter assembly connector.
3. Connect an oscilloscope to terminal N91-16 (SPDI) and N91-6 (E1).
4. Turn the power switch on (IG).
5. Check the signal waveform according to the condition(s) in the table below.

   Item	Condition
   Tester Connection	N91-16 (SPDI) - N91-6 (E1)
   Tool setting	5 V/DIV., 20 ms./DIV.
   Vehicle condition	Power switch on (IG), vehicle being driven at approx. 5 km/h (3 mph)

   OK

   The waveform is similar to that shown in the illustration.

   HINT: 

   The wavelength becomes shorter as the vehicle speed increases.

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Power Management Control ECU)

Result:  OK

OK 

REPLACE POWER MANAGEMENT CONTROL ECU 

(Refer to REMOVAL [09/2014 - ] )

Result:  NG

NG 

GO TO METER / GAUGE SYSTEM (Vehicle Speed Signal Circuit) 

(Refer to Vehicle Speed Signal Circuit [09/2014 - 10/2015] or Vehicle Speed Signal Circuit [10/2015 - ] )