Tachometer Malfunction: Procedure

1. Check if 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. Refer to DIAGNOSTIC TROUBLE CODE CHART

B → GO TO CAN COMMUNICATION SYSTEM 

A: Go to next step 

1. Connect Techstream to the DLC3.
2. Ignition switch on (IG).
3. Turn Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
5. Check the operation by referring to the values in the table below.
   COMBINATION METER:
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Tacho Meter Operation	Tachometer	0, 1000, 2000, 3000, 4000, 5000, 6000, 7000 (rpm)	-

   OK

   Needle indication is normal.

NG → REPLACE COMBINATION METER ASSEMBLY 

OK: Go to next step 

1. Connect Techstream to the DLC3.
2. Start the engine.
3. Turn Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Data List.
5. Check the values by referring to the values in the table below.
   COMBINATION METER:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Engine Rpm	Engine speed/Min.: 0 rpm, Max.: 12750 rpm	Almost same as actual engine speed (When engine is running)	If data received from the ECM exceeds the range that can be displayed on the meter, the meter continues to display the maximum value of the range.

   OK

   Engine speed displayed on Techstream is almost the same as the actual engine speed.

NG → See step   4 

OK → REPLACE COMBINATION METER ASSEMBLY 

1. Connect Techstream to the DLC3.
2. Ignition switch on (IG).
3. Turn Techstream ON.
4. Enter the following menus: Powertrain / Engine and ECT / Data List.
5. Check the values by referring to the table below.
   ENGINE AND ECT (FOR 2AR-FE):
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Engine Speed	Vehicle speed/Min.: 0 rpm, Max.: 16383.75 rpm	650 to 750 (when idling)	-

   ENGINE AND ECT (FOR 2GR-FE):
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Engine Speed	Vehicle speed/Min.: 0 rpm, Max.: 16383.75 rpm	600 to 700 (when idling)	-

   OK

   Engine speed displayed on Techstream is almost the same as the actual engine speed.

NG → GO TO SFI SYSTEM 

OK: Go to next step 

1. Replace the ECM to a new or a normal one.

   OK

   The operation of the tachometer returns to normal.

NG → REPLACE COMBINATION METER ASSEMBLY 

OK → END