Meter / Gauge System Tachometer Malfunction
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
PERFORM ACTIVE TEST USING GTS (TACHOMETER)
READ VALUE USING GTS (TACHOMETER)
READ VALUE USING GTS (ENGINE SPEED)
METER / GAUGE SYSTEM - Tachometer Malfunction |
DESCRIPTION
The combination meter receives engine speed signals from the ECM via the CAN line. The combination meter displays engine speed data that is calculated based on the data received from the ECM.
WIRING DIAGRAM
INSPECTION PROCEDURE
1.CHECK CAN COMMUNICATION SYSTEM |
Check for DTCs (Click here).
ResultResult
| Proceed to
|
CAN communication system DTC is not output
| A
|
CAN communication system (for LHD with Central Gateway ECU) DTC is output
| B
|
CAN communication system (for LHD without Central Gateway ECU) DTC is output
| C
|
CAN communication system (for RHD with Central Gateway ECU) DTC is output
| D
|
CAN communication system (for RHD without Central Gateway ECU) DTC is output
| E
|
2.PERFORM ACTIVE TEST USING GTS (TACHOMETER) |
Operate the GTS according to the display and select Active Test (Click here).
Combination MeterTester Display
| Test Part
| Control Range
| Diagnostic Note
|
TachoMeter Operation
| Tachometer
| 0, 1000, 2000, 3000, 4000, 5000, 6000, 7000
| Perform the test with the vehicle stopped and engine idling.
|
- HINT:
- Make sure that the vehicle is stopped and the engine is idling.
- OK:
- Needle indication is normal.
3.READ VALUE USING GTS (TACHOMETER) |
Operate the GTS according to the display and select Data List (Click here).
Combination MeterTester Display
| Measurement Item/Range
| Normal Condition
| Diagnostic Note
|
Engine Rpm
| Engine speed/Min.: 0, Max.: 12750
| Idling: 700 to 800
| Unit: rpm
|
- OK:
- Engine speed displayed on the GTS is almost the same as actual engine speed.
ResultResult
| Proceed to
|
NG
| A
|
OK
| B
|
4.READ VALUE USING GTS (ENGINE SPEED) |
Operate the GTS according to the display and select Data List (Click here).
ResultResult
| Proceed to
|
Engine speed displayed on the GTS is almost same as actual engine speed
| A
|
Engine speed displayed on the GTS is not same as actual engine speed (for 1GR-FE)
| B
|
Engine speed displayed on the GTS is not same as actual engine speed (for 1UR-FE)
| C
|
Engine speed displayed on the GTS is not same as actual engine speed (for 3UR-FE)
| D
|
Engine speed displayed on the GTS is not same as actual engine speed (for 1VD-FTV)
| E
|
- OK:
- Engine speed displayed on the GTS is almost the same as actual engine speed.