Tachometer Malfunction: Procedure

1. Connect a Techstream to the DLC3.
2. Turn the ignition switch on and turn the tester on.
3. Check for DTCs and note any codes that are output. Refer to DTC CHECK / CLEAR .
4. Clear the DTC. Refer to DTC CHECK / CLEAR .
5. Recheck for DTCs. Refer to DTC CHECK / CLEAR .

   Result

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

B → See step   5 

A: Go to next step 

1. Connect a Techstream to the DLC3.
2. Turn the ignition switch on and turn the tester on.
3. Check for DTCs and note any codes that are output. Refer to DTC CHECK / CLEAR .
4. Clear the DTC. Refer to DTC CHECK / CLEAR .
5. Recheck for DTCs. Refer to DTC CHECK / CLEAR .

   Result

   Result	Proceed to
   Engine control DTC is not output	A
   Engine control DTC is output	B

B → See step   6 

A: Go to next step 

1. Connect a Techstream to the DLC3.
2. Turn the ignition switch on and turn the tester on.
3. Operate the Techstream according to the display and select "Active Test". Refer to DATA LIST / ACTIVE TEST .

   Body Electrical / Combination meter / Active Test:

   Tester Display	Test Part	Control Range
   Tachometer Operation	0 / 1,000 / 2,000 / 3,000 / 4,000 / 5,000 / 6,000 / 7,000 rpm	Value selected during Active Test is displayed

   OK

   Engine speed displayed on the tester is approximately the same as that of the tachometer reading.

NG → See step   7 

OK: Go to next step 

1. Connect a Techstream to the DLC3.
2. Engine start and turn the tester on.
3. Operate the Techstream according to the display and select "Data List". Refer to DATA LIST / ACTIVE TEST .

   Body Electrical / Combination Meter / Data List:

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Engine RPM	Engine speed Min.: 0 Max.: 12,750	Approximately same as actual engine speed (When engine is running)	Unit: rpm

   OK

   Engine speed displayed on the tester is approximately the same as that displayed on the combination meter.

   NOTE:

   Determine whether the value displayed on the tester is within the acceptable range by referring to reference values described in "ON-VEHICLE INSPECTION" See step  3.

NG → See step   9 

OK → See step   8