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Home >> Toyota >> 2022 >> Corolla Cross L, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Symptom Tests (2 Of 2) & Circuit Tests >> Meter / Gauge System >> Tachometer Malfunction [11/2023 - ] >> Procedure

Tachometer Malfunction [11/2023 - ]: Procedure

  1. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      for HEV Model A
      for Gasoline Model B

    Result: 

    B 

    See step  7

    Result: 

    A 

    See step  2

  2. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if CAN communication DTCs are output.

      Refer to DIAGNOSIS SYSTEM [11/2022 - 12/2024] , or refer to DIAGNOSIS SYSTEM [12/2024 - ]

      Result

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

    Result: 

    B 

    GO TO CAN COMMUNICATION SYSTEM 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - 12/2024] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2024 - ]

    Result: 

    A 

    See step  3

  3. CHECK FOR DTC (HYBRID CONTROL SYSTEM) 
    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 [11/2022 - 12/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2024 - ]

    Result: 

    A 

    See step  4

  4. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      for 7 Inch Type Multi-information Display A
      for 4.2 Inch Type Multi-information Display B

    Result: 

    B 

    See step  6

    Result: 

    A 

    See step  5

  5. READ VALUE USING GTS 
    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.*

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Engine RPM

      OK

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

      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 HYBRID VEHICLE CONTROL ECU 

    Refer to REMOVAL [11/2022 - 12/2024] , or refer to REMOVAL [12/2024 - ]

    Result: 

    B 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

  6. PERFORM ACTIVE TEST USING GTS 
    1. Perform the Active Test according to the display on the GTS.

      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 -
      TachoMeter Operation (8000rpm) Tachometer
      (8000 rpm)      		 ON -

      HINT: 

      Depending on the specifications of the vehicle, some items may not be displayed.

      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)

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      TachoMeter Operation (8000rpm)

      OK

      Tachometer indication is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU 

    Refer to REMOVAL [11/2022 - 12/2024] , or refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

  7. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if CAN communication DTCs are output.

      Refer to DIAGNOSIS SYSTEM [11/2023 - 12/2024] , or refer to DIAGNOSIS SYSTEM [12/2024 - ]

      Result

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

    Result: 

    B 

    GO TO CAN COMMUNICATION SYSTEM 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - 12/2024] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2024 - ]

    Result: 

    A 

    See step  8

  8. CHECK FOR DTC (SFI SYSTEM) 
    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 [11/2023 - ]

    Result: 

    A 

    See step  9

  9. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      for 7 Inch Type Multi-information Display A
      for 4.2 Inch Type Multi-information Display B

    Result: 

    B 

    See step  11

    Result: 

    A 

    See step  10

  10. READ VALUE USING GTS 
    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.*

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Engine RPM

      OK

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

      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 [11/2023 - ]

    Result: 

    B 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

  11. PERFORM ACTIVE TEST USING GTS 
    1. Perform the Active Test according to the display on the GTS.

      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 -
      TachoMeter Operation (8000rpm) Tachometer
      (8000 rpm)      		 ON -

      HINT: 

      Depending on the specifications of the vehicle, some items may not be displayed.

      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)

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      TachoMeter Operation (8000rpm)

      OK

      Tachometer indication is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

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