PRE-RELEASE
DTC P2564 or P2565
| DTC P2564 or P2565 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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| • |
Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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| • |
Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptors |
DTC P2564 00
Turbocharger Vane Position Sensor Circuit Low Voltage
DTC P2565 00
Turbocharger Vane Position Sensor Circuit High Voltage
| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|
5V Reference
|
P0641
|
P2564 00
|
P0641
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-
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Signal
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P2564 00
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P2564 00
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P2565 00
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-
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Low Reference
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-
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P2565 00
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-
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-
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| Circuit/System Description |
The turbocharger vane position sensor is mounted on the turbo charger vacuum actuator. A 5 V reference voltage and a low reference is supplied to the turbocharger vane position sensor. The sensor provides a signal to the engine control module (ECM) with the actual turbocharger control rod position.
| Conditions for Running the DTC |
The ignition is ON or the engine is operating.
| Conditions for Setting the DTC |
The ECM detects a short to ground or a short to Voltage for more than 1 second.
| Action Taken When the DTC Sets |
DTCs P2564 and P2565 are Type A DTCs
| Conditions for Clearing the DTC |
DTCs P2564 and P2565 are Type A DTCs
| Reference Information |
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Turbocharger System Description
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References
| Circuit/System Verification |
Ignition ON, observe the scan tool Turbocharger Vane Position Sensor. The reading should be between 0.5-4.5 V and change with.
| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the B112 Turbocharger Vane Position Sensor.
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| 2. |
Ignition OFF, test for less than 5 Ω between the low reference circuit terminal 1 and ground.
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| 3. |
If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
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| 4. |
Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 3 and ground.
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| 5. |
If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
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| 6. |
If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.
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| 7. |
Verify the scan tool Turbocharger Vane Position Sensor is less than 0.3 V.
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| 8. |
If greater than the specified range, test the signal circuit terminal 2 for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.
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| 9. |
Install a 3 A fused jumper wire between the signal circuit terminal 2 and the 5 V reference circuit terminal 3. Verify the scan tool Turbocharger Vane Position Sensor is greater than 4.8 V.
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| 10. |
If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
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| 11. |
If all circuits test normal, test or replace the B112 Turbocharger Vane Position Sensor.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
