Speedometer Malfunction: Procedure

1. Check if a CAN communication DTC is output. Refer to DIAGNOSIS SYSTEM .

   Result

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

B → See step   8 

A: Go to next step 

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 / Active Test.
5. Check the operation by referring to the table below.
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Speed Meter Operation	Speedometer	OFF, 0, 40, 80, 120, 160, 200, 240, 280 mph*1	Confirm that the vehicle is stopped with the engine idling
   		OFF, 0, 40, 80, 120, 160, 200, 240, 280 km/h*2

   • *1: with mph units
   • *2: with km/h units

   OK

   Speedometer indication is normal.

NG → See step   9 

OK: Go to next step 

1. Check if the brake control system DTCs are output. Refer to DTC CHECK / CLEAR .

   Result

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output.	B

B → See step   10 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus:
   1. for ABS/VSC/TRAC: Chassis / ABS/VSC/TRC / Data List.
   2. for Combination Meter: Body Electrical / Combination Meter / Data List.
5. Check the values by referring to the table below.
   ABS/VSC/TRC
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed	Maximum wheel speed sensor/Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations

   COMBINATION METER
   
   

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

   HINT: 

   • When the Data List values of the ECUs match, an internal malfunction of the combination meter assembly is suspected.
   • When the Data List values of the ECUs do not match, a signal output error of the skid control ECU or an internal malfunction of the combination meter assembly is suspected.

NG → See step   5 

OK → See step   10 

1. Replace the meter circuit plate with a new or a known good one. Refer to DISASSEMBLY .

   OK

   The operation of the speedometer returns to normal.

NG → See step   6 

OK → END 

1. Replace the No. 4 meter circuit plate with a new or a known good one. Refer to DISASSEMBLY .

   OK

   The operation of the speedometer returns to normal.

NG → See step   7 

OK → END 

1. Replace the No. 3 meter circuit plate with a new or a known good one. Refer to DISASSEMBLY .

   OK

   The operation of the speedometer returns to normal.

NG → See step   11 

OK → END