Tachometer Malfunction [11/2022 - ]: Procedure

1. Check if CAN communication DTCs are output.

   Refer to DIAGNOSIS SYSTEM [11/2022 - 03/2023] , or refer to DIAGNOSIS SYSTEM [03/2023 - 08/2023] , or refer to DIAGNOSIS SYSTEM [08/2023 - 09/2024] , or refer to DIAGNOSIS SYSTEM [09/2024 - ]

   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 [11/2022 - 08/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2023 - 09/2024] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2024 - ]

Result: 

A 

See step  2

1. Check if SFI system DTCs are output.

   Powertrain > Engine > Trouble Codes 

   Result

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

Result: 

B 

GO TO SFI SYSTEM 

Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - 09/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2024 - ]

Result: 

A 

See step  3

1. Read the Data List according to the display on the GTS.

   Body Electrical > Combination Meter > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Engine RPM	Engine speed input	Min.: 0 rpm, Max.: 12701 rpm or Unset	Almost the same as actual tachometer	The value displayed on the tachometer may deviate.*

   1. *: For the tolerance of tachometer, refer to Operation Check.

      Refer to OPERATION CHECK [09/2022 - ]

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Engine RPM

   Result

   Result	Proceed to
   The value displayed in the Data List and on the tachometer approximately match	A
   The value displayed in the Data List and on the tachometer do not match	B

Result: 

A 

REPLACE ECM 

Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

Result: 

B 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]