• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
---|---|---|---|---|---|
Turbocharger Vane Position Sensor 5-Volt Reference | P003A, P0106, P0698, P2564 | P003A, P2563 | P2564 | P003A, P0106, P0401, P0699, P2565 | P2563 |
Turbocharger Vane Position Sensor Signal | P2564 | P003A, P2563 | P0401, P2564 | P0401, P2565 | P2563 |
Turbocharger Vane Position Sensor Low Reference | -- | P003A, P2563 | P003A, P0401, P2565 | -- | P2563 |
Circuit | Short to Ground | Open | Short to Voltage |
---|---|---|---|
Operating Conditions: Ignition ON, Engine Running Parameter Normal Range: Varies¹ | |||
Turbocharger Vane Position Sensor 5-Volt Reference | 0% | 0% | 100% |
Turbocharger Vane Position Sensor Signal | 0% | 0% | 100% |
Turbocharger Vane Position Sensor Low Reference | -- | 100% | -- |
¹TC Vane Position Sensor parameter matches Desired TC Vane Position parameter |
The position of the turbocharger vanes are controlled by the engine control module (ECM). The ECM utilizes a turbocharger vane control solenoid to control the position of the turbocharger vanes and a turbocharger vane position sensor to verify the position of the vanes. The ECM will vary the position of the vanes depending on engine load requirements. The TC vane position sensor provides the ECM with a signal voltage relative to the TC vane positions on the TC vane position sensor signal circuit.
The ECM provides the TC vane position sensor with a 5-volt reference circuit and a ground on the low reference circuit.
• | DTCs P0047, P0048, P2564, or P2565 are not set. |
• | The engine has been running for greater than 30 seconds. |
• | DTC P2563 runs continuously when the above conditions are met. |
The ECM detects that the difference between turbocharger actual vane position and the desired vane position is 15 percent less than or greater than a calibrated value for greater than 5 seconds.
DTC P2563 is a Type B DTC.
DTC P2563 is a Type B DTC.
• | Verify that any electrical aftermarket devices are properly connected and grounded. Refer to Checking Aftermarket Accessories. |
• | A MAP sensor that is skewed or bias may cause this DTC to set. |
• | A restricted oil supply feed to the turbocharger may cause this DTC to set. Refer to Turbocharger Lack of Oil Supply. |
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
J 34730-405 Injector Test Lamp
⇒ | If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. |
Important: Perform the Circuit/System Verification before proceeding with the Circuit/System Testing.
Important: Perform the Repair Verification after completing the Circuit/System Testing.
Important: When the engine coolant temperature is less than 70°C (158°F), the test lamp will change brightness when the ECM is attempting a TC learn, the test lamp will flash ON and OFF without commands from a scan tool.
⇒ | If the test lamp does not change from bright to dim with each command, test the TC vane position solenoid high control circuit terminal A and low control circuit terminal B for a short to ground, open, high resistance, or short to voltage. If the circuits test normal, replace the ECM. |
Important: Resistance of the TC control solenoid will vary with the temperature.
⇒ | If the resistance is not within the specified range, replace the TC vane position control solenoid. |
⇒ | If less than infinite resistance, replace the TC control solenoid. |
• | The ECM X1 solenoid high control circuit terminal 48 to TC vane position control solenoid terminal A. |
• | The ECM X1 solenoid low control circuit terminal 96 to TC control solenoid terminal B. |
• | The ECM X1 sensor signal circuit terminal 20 to TC vane position sensor terminal B. |
• | The ECM X1 sensor low reference terminal 63 to TC vane position sensor terminal C. |
• | The ECM X1 sensor 5-volt reference terminal 13 to TC vane position sensor terminal D. |
⇒ | If the resistance is over 5 ohms, repair the high resistance in the affected circuit. |
⇒ | If the voltage parameter does not change gradually and smoothly, replace the TC control solenoid. |
Important: Perform the Circuit/System Testing in order to verify the integrity of the TC vane position sensor circuits before proceeding with the Component Testing.
Important: You must perform the Repair Verification after performing the Component Testing.
⇒ | If the TC Vane Position parameter drops out or spikes, replace the TC vane position sensor. |
• | Control Module References for ECM replacement, setup, and programming |