DTC C2191/91: Vehicle Speed Signal Error (Test Mode DTC): Procedure

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON and turn the Techstream on.
4. Enter the following menus:

   "Bus Check" from the "System Select" / "Communication Malfunction DTC" from the "Bus Check" screen

5. Check the CAN communication system. Refer to DIAGNOSIS SYSTEM .

NG → See step   5 

OK: Go to next step 

1. Turn the ignition switch off.
2. Connect Techstream to the DLC3.
3. Turn the ignition switch to ON and turn the Techstream on.
4. Check for DTCs.
   RESULT
   
   

   Result		Proceed to
   CAN system DTC is not output		A
   CAN system DTC is output	w/ Smart Key System	B
   	w/o Smart Key System	C

B → See step   5 

C → See step   7 

A: Go to next step 

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON and turn the Techstream on.
4. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
5. Check that the values indicated on the Techstream and on the combination meter are the same.

   Tire Pressure Monitor

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed	Vehicle speed reading/ min.: 0 km/h (0 mph) max.: 255 km/h (158 mph)	Actual vehicle speed	Speed indicated on the combination meter

   OK

   The vehicle speed displayed on the Techstream changes depending on the actual vehicle speed.

NG → See step   6 

OK → See step   4