Tachometer Malfunction [08/2020 - ]: Procedure

1. Check if CAN communication DTCs are output.

   Refer to DIAGNOSIS SYSTEM [08/2020 - 08/2021] , or refer to DIAGNOSIS SYSTEM [08/2021 - ]

   Result

   Result	Proceed to
   CAN communication DTCs are not output	A
   CAN communication DTCs are output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 - ] 

Result: 

A 

See step  2

1. Check if hybrid control system DTCs are output.

   Powertrain > Hybrid Control > Trouble Codes 

   Result

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

Result: 

B 

GO TO HYBRID CONTROL SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2020 - 08/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2021 - ] 

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Hybrid Control / Data List.
5. Read the Data List according to the display on the Techstream.

   Powertrain > Hybrid Control > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Engine Speed	Engine speed	-	Engine stopped: 0 rpm While engine running at a constant speed: No significant fluctuation	-

   Powertrain > Hybrid Control > Data List 

   Tester Display
   Engine Speed

   OK

   Engine speed displayed on the Techstream is almost the same as the tachometer indication.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 - ] 

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - ]