Tachometer Malfunction [08/2020 - ]: Procedure

WARNING: This page is about a different car, the 2022 Toyota Avalon, 2021 Toyota Avalon, 2020 Toyota Avalon, and 2019 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CAN COMMUNICATION SYSTEM

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

CHECK FOR DTC (SFI SYSTEM)

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

for 2GR-FKS: Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2020 - ]

for A25A-FKS: Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2020 - ]

Result:

A

See step 3

PERFORM ACTIVE TEST USING TECHSTREAM

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Combination Meter / Active Test.

Perform the Active Test according to the display on the Techstream.

Body Electrical > Combination Meter > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
TachoMeter Operation (0rpm)	Tachometer (0 rpm)	ON	-
TachoMeter Operation (1000rpm)	Tachometer (1000 rpm)	ON	-
TachoMeter Operation (2000rpm)	Tachometer (2000 rpm)	ON	-
TachoMeter Operation (3000rpm)	Tachometer (3000 rpm)	ON	-
TachoMeter Operation (4000rpm)	Tachometer (4000 rpm)	ON	-
TachoMeter Operation (5000rpm)	Tachometer (5000 rpm)	ON	-
TachoMeter Operation (6000rpm)	Tachometer (6000 rpm)	ON	-
TachoMeter Operation (7000rpm)	Tachometer (7000 rpm)	ON	-

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (0rpm)

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (1000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (2000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (3000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (4000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (5000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (6000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display
TachoMeter Operation (7000rpm)

OK

Tachometer indication is normal.

Result

Proceed to
OK
NG

Result:

OK

REPLACE ECM

for 2GR-FKS: Refer to REMOVAL [04/2018 - 08/2021] , or refer to REMOVAL [08/2021 - ]

for A25A-FKS: Refer to REMOVAL [08/2020 - ]

Result:

NG

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