Tachometer Malfunction [09/2014 - 10/2015]: Procedure
- CHECK CAN COMMUNICATION SYSTEM
- Check if a CAN communication DTC is output (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015]
).RESULT
Result Proceed to CAN communication DTC is not output A CAN communication DTC is output B
Result: B
B
GO TO CAN COMMUNICATION SYSTEM
(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )
Result: A
A
See step 2
- Check if a CAN communication DTC is output (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015]
).
- PERFORM ACTIVE TEST USING TECHSTREAM (TACHOMETER OPERATION)
- Use the Active Test to check the operation of the tachometer (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015]
).COMBINATION METER
Tester Display Test Part Control Range Diagnostic Note Tachometer Operation Tachometer 0, 1000, 2000, 3000, 4000, 5000, 6000 or 7000 (rpm) - OK
Tachometer indication is normal.
Result: NG
NG
REPLACE COMBINATION METER ASSEMBLY
(Refer to REMOVAL [09/2014 - ] )
Result: OK
OK
See step 3
- Use the Active Test to check the operation of the tachometer (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015]
).
- READ VALUE USING TECHSTREAM (ENGINE RPM)
- Use the Data List to check the engine speed (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015]
).COMBINATION METER
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Rpm Engine speed/Min.: 0 rpm, Max.: 12750 rpm Actual engine speed - OK
Engine speed displayed on the Techstream is almost the same as the tachometer indication.
- Record the engine speed displayed on the Techstream.
HINT:
Check the engine speed when the engine is fully warmed up and the air conditioning and all electrical accessories are off.
Result: NG
NG
REPLACE COMBINATION METER ASSEMBLY
(Refer to REMOVAL [09/2014 - ] )
Result: OK
OK
See step 4
- Use the Data List to check the engine speed (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015]
).
- READ VALUE USING TECHSTREAM (ENGINE SPEED)
- Use the Data List to check the engine speed (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015]
).ENGINE AND ECT
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Engine Speed Engine speed/Min.: 0 rpm, Max.: 16383 rpm 600 to 700 rpm: When idling - OK
Engine speed displayed on the Techstream is almost the same as the previously recorded value displayed on the Techstream (Body Electrical / Combination Meter / Data List / Engine Rpm).
Result: NG
NG
GO TO SFI SYSTEM
(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] )
Result: OK
OK
See step 5
- Use the Data List to check the engine speed (Refer to DATA LIST / ACTIVE TEST [09/2014 - 10/2015]
).
- CHECK COMBINATION METER ASSEMBLY
- Replace the combination meter assembly with a new or normally functioning one (Refer to REMOVAL [09/2014 - ]
).
OK
The operation of the tachometer returns to normal.
Result: OK
OK
END (COMBINATION METER ASSEMBLY WAS DEFECTIVE)
Result: NG
NG
REPLACE ECM
(Refer to REMOVAL [09/2014 - ] )
- Replace the combination meter assembly with a new or normally functioning one (Refer to REMOVAL [09/2014 - ]
).