Pinpoint Test J: Test The Operation Of Low Pressure Turbocharger WASTEGATE And Bypass Valve Actuator

1. Make sure the engine is turned off.
2. For testing the operation of Low Pressure Turbocharger Wastegate and Bypass Valve Actuator, a hand vacuum pump is required.
3. Before proceeding with the Bypass Valve and Wastegate actuator tests, check the integrity of the Bypass and Wastegate Vacuum Pipes.
4. If the vacuum pipes are worn, damaged and/or leaking, replace before proceeding with the test.
5. Disconnect the vacuum pipe that connects the wastegate actuator to the wastegate solenoid and connect the hand vacuum pump to the wastegate actuator

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6. Generate a vacuum pressure until the Wastegate actuator is fully actuated and pressure is maintained.

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Did the Turbocharger Wastegate actuator fully actuate and pressure maintained for 20sec?

Yes 

GO to  J2.

No 

Replace the Low Pressure Turbocharger (Fixed Geometry Turbocharger) and clear DTC  . Refer to: LOW PRESSURE TURBOCHARGER - INGENIUM I4 2.0L DIESEL - HIGH POWER (G1914799) 

1. Reconnect the vacuum pipe that connects the wastegate actuator to the wastegate solenoid and disconnect the vacuum pipe that connects the turbine bypass valve to the TBV solenoid. Connect the hand vacuum pump to the bypass valve actuator.

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2. Generate a vacuum pressure until the Bypass Valve actuator is fully actuated and pressure is maintained.

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Did the Turbocharger Bypass Valve actuator fully actuate and pressure maintained for 20sec?

Yes 

GO to  J3.

No 

Replace the Low Pressure Turbocharger (Fixed Geometry Turbocharger) and clear DTC  . Refer to: LOW PRESSURE TURBOCHARGER - INGENIUM I4 2.0L DIESEL - HIGH POWER (G1914799) 

1. Reconnect the vacuum pipes

Is an engine performance fault still present?

Yes 

GO to  J4.

No 

Turbo, EGR  , DPF  , Throttle Valve and Air-Path Tests Complete. If a performance fault persists, contact the JLR local help desk and raise a TA 

1. Replace the Passive Bypass Valve and check if the fault persists Refer to: COMPRESSOR BYPASS VALVE - INGENIUM I4 2.0L DIESEL - HIGH POWER (G2224797) 

Is an engine performance fault still present?

Yes 

Replace the Low Pressure Turbocharger (Fixed Geometry Turbocharger) and clear DTC  . Refer to: LOW PRESSURE TURBOCHARGER - INGENIUM I4 2.0L DIESEL - HIGH POWER (G1914799) 

No 

Turbo, EGR  , DPF  , Throttle Valve and Air-Path Tests Complete.