Tachometer Malfunction: Procedure
- CHECK CAN COMMUNICATION SYSTEM
- Check for DTC. Refer to DIAGNOSIS SYSTEM [09/2012 - ]
.RESULT
Result Proceed to CAN communication system DTC is not output A CAN communication system DTC is output B
B → See step 9
A: Go to next step
- Check for DTC. Refer to DIAGNOSIS SYSTEM [09/2012 - ]
.
- PERFORM ACTIVE TEST USING TECHSTREAM (TACHOMETER)
- Operate the Techstream according to the display and select "Active Test".
OK
Needle indication is normal.
COMBINATION METERTester Display Test Part Control Range Tachometer operation Tachometer 0, 1000, 2000, 3000, 4000, 5000, 6000, 7000 HINT:
Confirm that the vehicle is stopped and engine is idling.
NG → See step 10
OK: Go to next step
- Operate the Techstream according to the display and select "Active Test".
- READ VALUE USING TECHSTREAM (ENGINE SPEED)
- Operate the Techstream according to the display and select "Data List".
OK
Engine speed displayed on Techstream is almost the same as actual engine speed.
COMBINATION METERTester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Rpm Engine speed / Min.: 0, Max.: 12750 Idling: 700 to 800 Unit: rpm
NG → See step 4
OK → See step 11
- Operate the Techstream according to the display and select "Data List".
- READ VALUE USING TECHSTREAM (ENGINE SPEED)
- Operate the Techstream according to the display and select "Data List".
OK
Engine speed displayed on the Techstream is almost the same as the actual engine speed.
ENGINETester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Speed Engine speed / Min.: 0, Max.: 16383.75 Idling: 700 to 800 Unit: rpm
NG → See step 8
OK: Go to next step
- Operate the Techstream according to the display and select "Data List".
- REPLACE NO. 1 METER ECU
- Temporarily replace the No. 1 meter ECU with a new one. Refer to DISASSEMBLY [09/2012 - ] .
NEXT: Go to next step
- CHECK NO. 1 METER ECU
- Check the operation of the tachometer returns to normal. Refer to OPERATION CHECK [09/2012 - ]
.
OK
Operation of tachometer returns to normal.
NG → See step 7
OK → END (NO. 1 METER ECU IS DEFECTIVE)
- Check the operation of the tachometer returns to normal. Refer to OPERATION CHECK [09/2012 - ]
.
- REPLACE ECM. Refer to REMOVAL [09/2012 - ]
- Go to SFI SYSTEM. Refer to PRECAUTION [09/2012 - ]
- Go to CAN COMMUNICATION SYSTEM. Refer to PRECAUTION [09/2012 - ]
- REPLACE NO. 1 METER ECU. Refer to DISASSEMBLY [09/2012 - ]
- REPLACE NO. 1 METER ECU. Refer to DISASSEMBLY [09/2012 - ]