Inspection steps
CAUTION:
Before performing inspections according to this flow chart, check that no abnormal condition is present in the engine. (Refer to
HOW TO TROUBLESHOOT
)
- Reading the diagnostic code
- Using SSM3, check if any diagnostic code related to CAN communication system is output. (Refer to
BASIC INSPECTION
)RESULT
Result Go to Diagnostic code is not output A Diagnostic code is output B B: To CAN communication system (Refer to HOW TO TROUBLESHOOT )
A: Go to Next Step
- Using SSM3, check if any diagnostic code related to CAN communication system is output. (Refer to
BASIC INSPECTION
)
- Performing the SSM3 system operation check mode (tachometer)
- Using SSM3, display the [System Operation Check Mode] screen according to the screen instructions and perform a check. (Refer to CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE
)SSM3 DISPLAY: [EACH SYSTEM CHECK] →[COMBINATION METER] →[WORK SUPPORT] →[SYSTEM OPERATION CHECK MODE]
Item Name Contents of testing Check item [TachoMeter Operation] Engine speed indication changeover 7000, 6000, 5000, 4000, 3000, 2000, 1000, 0 (r/min) NOTE: When performing [System Operation Check Mode], check if the actual meter reading is within the allowable range of the meter reading (refer to METER & GAUGE SYSTEM ).RESULTResult Go to Each engine speed specified by [System Operation Check Mode] can be displayed smoothly A Each engine speed specified by [System Operation Check Mode] can not be displayed smoothly B B: Replacement of the combination meter ASSY (refer to REMOVAL )
A: Go to Next Step
- Using SSM3, display the [System Operation Check Mode] screen according to the screen instructions and perform a check. (Refer to CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE
)
- Reading the SSM3 data (engine speed)
- Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE
)NOTE: Check the tachometer and the reference value of [Current Data Display & Save].SSM3 DISPLAY: [EACH SYSTEM CHECK] →[COMBINATION METER] →[CURRENT DATA DISPLAY & SAVE]
Item Name [Symbol] Description/display range Normal value Remarks [Engine Speed] [Tacho Meter] Engine speed input
Display range: 0 to 12750[r/min]Engine running state
Roughly synchronized with engine speed- RESULTResult Go to The reference value of [Current Data Display & Save] almost equals to the tachometer A The reference value of [Current Data Display & Save] differs from the tachometer B B: Replacement of the combination meter ASSY (refer to REMOVAL )
A: Go to Next Step
- Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE
)
- Reading the diagnostic code (EFI system)
- Using SSM3, check if any diagnostic code related to the EFI system is output. (Refer to
CHECKING/CLEARING DTC
)RESULT
Result Go to Diagnostic code is not output A Diagnostic code is output B B: To EFI system (Refer to HOW TO TROUBLESHOOT )
A: Go to Next Step
- Using SSM3, check if any diagnostic code related to the EFI system is output. (Refer to
CHECKING/CLEARING DTC
)
- Reading the SSM3 data (engine speed)
- Using SSM3, display the [Current Data Display & Save] screen according to the screen instructions and check the data. (Refer to
CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE
)NOTE: Check the tachometer and the reference value of [Current Data Display & Save].SSM3 DISPLAY: [EACH SYSTEM CHECK] →[ENGINE CONTROL SYSTEM] →[CURRENT DATA DISPLAY & SAVE]
Item Name [Symbol] Description/display range Normal value Remarks [Engine Speed]
[Engine Spd]Indicates the engine speed
Display range: 0 to 16383.8[r/min]0 r/min
Engine stop (IG ON)NE signal (NE sensor) No significant fluctuation When engine is rotating at a constant speed RESULTResult Go to The reference value of [Current Data Display & Save] almost equals to the tachometer A The reference value of [Current Data Display & Save] differs from the tachometer B B: To EFI system (Refer to HOW TO TROUBLESHOOT )
A: Go to Next Step
- Using SSM3, display the [Current Data Display & Save] screen according to the screen instructions and check the data. (Refer to
CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE
)
- Replacement of combination meter ASSY
- Replace with a new or normally functioning combination meter ASSY (refer to REMOVAL
) and check the operation of the tachometer.RESULT
Result Go to Operates normally A Operates abnormally B B: Replacement of the engine control computer (Refer to REMOVAL )
A: Complete (Internal fault of the combination meter ASSY)
- Replace with a new or normally functioning combination meter ASSY (refer to REMOVAL
) and check the operation of the tachometer.