DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TACHOMETER)
READ VALUE USING INTELLIGENT TESTER (TACHOMETER)
READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED)
CHECK COMBINATION METER ASSEMBLY
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 ().
Result| Result | Proceed to |
| CAN communication system DTC is not output | A |
| CAN communication system (for LHD) DTC is output | B |
| CAN communication system (for RHD) DTC is output | C |
| | Go to CAN COMMUNICATION SYSTEM ()
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| | Go to CAN COMMUNICATION SYSTEM ()
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| 2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TACHOMETER) |
Operate the intelligent tester according to the display and select Active Test ().
Combination Meter| Tester 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. |
- Make sure that the vehicle is stopped and the engine is idling.
- OK:
- Needle indication is normal.
Result| Result | Proceed to |
| OK | A |
| NG (w/ Multi-information Display) | B |
| NG (w/o Multi-information Display) | C |
| | REPLACE COMBINATION METER ASSEMBLY ()
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| | REPLACE COMBINATION METER ASSEMBLY ()
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| 3.READ VALUE USING INTELLIGENT TESTER (TACHOMETER) |
Operate the intelligent tester according to the display and select Data List ().
Combination Meter| Tester 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 intelligent tester is almost the same as actual engine speed.
Result| Result | Proceed to |
| NG | A |
| OK (w/ Multi-information Display) | B |
| OK (w/o Multi-information Display) | C |
| | REPLACE COMBINATION METER ASSEMBLY ()
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| | REPLACE COMBINATION METER ASSEMBLY ()
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| 4.READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED) |
Operate the intelligent tester according to the display and select Data List ().
Result| Result | Proceed to |
| Engine speed displayed on the intelligent tester is almost same as actual engine speed | A |
| Engine speed displayed on the intelligent tester is not same as actual engine speed (for 1GR-FE) | B |
| Engine speed displayed on the intelligent tester is not same as actual engine speed (for 1UR-FE) | C |
| Engine speed displayed on the intelligent tester is not same as actual engine speed (for 3UR-FE) | D |
| Engine speed displayed on the intelligent tester is not same as actual engine speed (for 1VD-FTV) | E |
- OK:
- Engine speed displayed on the intelligent tester is almost the same as actual engine speed.
| 5.CHECK COMBINATION METER ASSEMBLY |
Check the combination meter type.
Result| Result | Proceed to |
| w/ Multi-information Display | A |
| w/o Multi-information Display | B |
| | REPLACE COMBINATION METER ASSEMBLY ()
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| A | |
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| REPLACE COMBINATION METER ASSEMBLY ()
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