Tachometer Malfunction: Procedure
- CHECK CAN COMMUNICATION SYSTEM
- Check if CAN communication DTCs are output. Refer to DTC CHECK / CLEAR [03/2012 - ]
.RESULT
Result Proceed to DTCs are not output A DTCs are output B
B → See step 7
A: Go to next step
- Check if CAN communication DTCs are output. Refer to DTC CHECK / CLEAR [03/2012 - ]
.
- PERFORM ACTIVE TEST USING TECHSTREAM (TACHOMETER OPERATION)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Combination Meter / Active Test.
- According to the display on the tester, perform the Active Test.COMBINATION METER
Tester Display Test Part Control Range Diagnostic Note Tachometer Operation Tachometer 0, 1000, 2000, 3000,, 4000, 5000, 6000, 7000 rpm - OK
The engine speed displayed on the tester is approximately the same as that of the tachometer reading.
NG → See step 10
OK: Go to next step
- READ VALUE USING TECHSTREAM (ENGINE RPM)
- Connect the Techstream to the DLC3.
- Start the engine.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Combination Meter / Data List.
- According to the display on the tester, read the Data List.COMBINATION METER
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Rpm Engine speed
Min.: 0
Max.: 12750Approximately same as actual engine speed (when engine is running) Unit: rpm OK
The engine speed displayed on the tester is approximately the same as that displayed on the combination meter assembly.
NOTE:Determine whether the value displayed on the tester is within the acceptable range by referring to the reference values described in "On-Vehicle Inspection". Refer to ON-VEHICLE INSPECTION [03/2012 - 05/2013] .
NG → See step 10
OK: Go to next step
- CHECK SFI SYSTEM
- Check if the SFI system outputs DTCs. Refer to DTC CHECK / CLEAR [03/2012 - ]
.RESULT
Result Proceed to DTCs are not output A DTCs are output B
B → See step 8
A: Go to next step
- Check if the SFI system outputs DTCs. Refer to DTC CHECK / CLEAR [03/2012 - ]
.
- READ VALUE USING TECHSTREAM (ENGINE SPEED)
- Connect the Techstream to the DLC3.
- Start the engine.
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Data List.
- According to the display on the tester, read the Data List.COMBINATION METER
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Speed Engine speed
Min.: 0
Max.: 16383.75Approximately same as actual engine speed (when engine is running) Unit: rpm OK
The engine speed displayed on the tester is approximately the same as that displayed on the combination meter assembly.
NOTE:Determine whether the value displayed on the tester is within the acceptable range by referring to the reference values described in "On-Vehicle Inspection". Refer to ON-VEHICLE INSPECTION [03/2012 - 05/2013] .
NG → See step 8
OK: Go to next step
- REPLACE COMBINATION METER ASSEMBLY
- Replace the combination meter assembly with a new one. Refer to REMOVAL [03/2012 - ]
.
OK
The operation of the tachometer returns to normal.
NG → See step 9
OK → END
- Replace the combination meter assembly with a new one. Refer to REMOVAL [03/2012 - ]
.
- GO TO CAN COMMUNICATION SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART [03/2012 - ]
- GO TO SFI SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2012 - 05/2013]
- REPLACE ECM. Refer to REMOVAL [03/2012 - 05/2013]
- REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [03/2012 - ]