Turbocharger Actuator Position Sensor Check
Precautions: General safety (00)
Circuit Diagram
| [A]: | ECM connector (View: [a]) | B1: | Turbocharger actuator position sensor power supply circuit | 1. | ECM |
| A1: | Turbocharger actuator (+) drive circuit | B2: | Turbocharger actuator position sensor signal circuit | 2. | Turbocharger actuator motor |
| A2: | Turbocharger actuator (–) drive circuit | B3: | Turbocharger actuator position sensor ground circuit | 3. | Turbocharger actuator position sensor |
Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Turbocharger Actuator Operation Check” performed?
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Go to Step 2.
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| 2 |
Turbocharger actuator position sensor power supply circuit and ground circuit check
1)When ignition is “OFF”, disconnect turbocharger actuator connector.
2)Check for proper terminal connection to turbocharger actuator connector.
3)If connections are OK, set ignition “ON”.
4)Check that voltage between “B1” and “B3” circuits is approx. 5 V.
Is check result OK?
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Go to Step 5.
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Go to Step 3.
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| 3 |
Turbocharger actuator position sensor ground circuit check
1)Check that voltage between “B1” circuit and ground is approx. 5 V.
Is check result OK?
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Repair “B3” circuit.
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Go to Step 4.
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| 4 |
Turbocharger actuator position sensor power supply circuit check
1)When ignition is “OFF”, disconnect “D01” connector from ECM.
2)Check for proper terminal connection to “D01” connector.
3)If connections are OK, check the following points.
•Resistance of “B1” circuit: less than 1 Ω
•Resistance between “B1” circuit and ground: infinity •Resistance between “B1” circuit terminal and other terminal at turbocharger actuator connector: infinity •Voltage of “B1” circuit: approx. 0 V (When ignition is “ON”) Is check result OK?
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Go to Step 5.
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Repair defective wire harness.
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| 5 |
Turbocharger actuator position sensor signal circuit check
1)When ignition is “OFF”, disconnect “D01” connector from ECM.
2)Check for proper terminal connection to “D01” connector.
3)If connections are OK, check the following points.
•Resistance of “B2” circuit: less than 1 Ω
•Resistance between “B2” circuit and ground: infinity •Resistance between “B2” circuit terminal and other terminal at turbocharger actuator connector: infinity •Voltage of “B2” circuit: approx. 0 V (When ignition is “ON”) Is check result OK?
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Go to Step 6.
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Repair or replace defective wire harness.
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| 6 |
Turbocharger actuator position sensor check
1)Check turbocharger actuator position sensor.
Is check result OK?
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Replace ECM and recheck parameter.
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Replace turbocharger with exhaust manifold.
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