Tachometer Malfunction: Procedure
- PERFORM ACTIVE TEST USING TECHSTREAM (TACHOMETER)
- Connect the Techstream to the DLC3.
- Turn the ignition switch ON and turn the tester ON.
- Enter the following menus: Body Electrical / Combination Meter /Active Test.
Body Electrical / Combination Meter / Active Test:
Tester Display Test Part Control Range Diagnostic Note Tachometer Operation Tachometer 0/1000/2000/3000/4000/5000/6000/7000 RPM - OK
Engine speed displayed on the tester is approximately the same as that of the tachometer reading.
NG → See step 5
OK: Go to next step
- READ VALUE USING TECHSTREAM (TACHOMETER)
- Connect the Techstream to the DLC3.
- Turn the ignition switch ON and turn the tester ON.
- Select the item below from the Data List, and read the value displayed on the Techstream.
Body Electrical / Combination Meter / Data List:
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Engine RPM Engine speed/Min.: 0 RPM, Max.: 12, 750 RPM Approximately same as actual engine speed (When engine is running) - OK
Engine speed displayed on the tester is approximately the same as the actual engine speed.
NG → See step 4
OK → See step 3
- REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL
- GO TO SFI SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
- REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL