• | 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 | P0698, P2564 | P003A, P2563 | P2564 | P0699, P2565 | P2563 |
Turbocharger Vane Position Sensor Signal Circuit | P2564 | P2563 | P2564 | P2565 | P2563 |
Turbocharger Vane Position Sensor Low Reference Circuit | -- | P003A, P2563 | P2565 | -- | P2563 |
Circuit | Short to Ground | Open | Short to Voltage |
---|---|---|---|
Operating Conditions: Engine Running Parameter Normal Range: Varies, TC Vane Position Sensor Parameter Matches Desired TC Vane Position Parameter | |||
5-Volt Reference Circuit | 0% | -- | 100% |
Turbocharger Vane Position Sensor Signal Circuit | 0% | 0% | 100% |
Low Reference Circuit | -- | 100% | -- |
The position of the turbocharger vanes is controlled by the engine control module (ECM). The ECM commands the TC vane position solenoid to change the position of vanes in order to vary boost depending upon the load requirements of the engine. The TC vane position sensor provides the ECM with a signal voltage relative to position of the turbocharger vanes.
• | The engine has been running for more than 3 seconds. |
• | DTC P2564 and P2565 run continuously when the above conditions are met. |
• | The engine has been running for more than 3 seconds. |
• | DTC P2564 and P2565 run continuously when the above conditions are met. |
The ECM detects that the turbocharger vane position sensor voltage is less than 0.28 volt for greater than 1 second.
The ECM detects that the turbocharger vane position sensor signal voltage is greater than 4.7 volts for greater than 1 second.
DTCs P2564 and P2565 are Type B DTCs.
DTCs P2564 and P2565 are Type B DTCs.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
⇒ | If any of the DTCs are set, refer to DTC P0698 or P0699 . |
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM. |
⇒ | If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ECM. |
⇒ | If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the ECM. |
⇒ | If greater than the specified range, test the signal circuit terminal B for a short to voltage. If the circuit tests normal, replace the ECM. |
⇒ | If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ECM. |
Important: You must perform the Circuit/System Testing in order to verify the integrity of the TC vane position sensor circuits before proceeding with Component Testing.
⇒ | If the TC Vane Position parameter does not increment smoothly or is erratic, replace the TC vane position sensor. |
• | Control Module References for ECM replacement, setup, and programming |