Symptom Chart

SYMPTOM	Possible CAUSES	ACTION
Poor acceleration and lack of power, when cold, poor acceleration and lack of power, when hot, yellow warning lamp illuminated	PCM connector is disconnected, connector pin is backed out, connector pin corrosion Offset post turbocharger compressor pressure sensor Blocked pressure sensor pipe between pressure sensor and pipe connection Post turbocharger compressor pressure sensor connector is disconnected, connector pin is backed out, connector pin corrosion Post turbocharger compressor pressure sensor - Wiring integrity short circuit to ground, short circuit to power, open circuit, high resistance Post turbocharger compressor pressure sensor failure Offset TMAP post WCAC sensor Offset ambient pressure sensor Other ambient pressure related DTCs TMAP post WCAC sensor connector is disconnected, connector pin is backed out, connector pin corrosion TMAP post WCAC sensor harness failure - Wiring integrity short circuit to ground, short circuit to power, open circuit, high resistance TMAP post WCAC sensor failure TMAP post intercooler temperature sensor - Wiring integrity Air intake system, boost air system high pressure boost air leak Turbocharger seized Compressor bypass valve stuck open Air intake system, low pressure intake blocked or restricted Charge air pressure sensor blocked Charge air pressure sensor - Wiring integrity Damaged compressor blades on the electric supercharger Restriction in the WCAC Compressor bypass throttle not closing fully Offset boost pressure sensors Stuck open compressor bypass valve	Inspect PCM connectors for signs of water ingress, and pins for damage and/or corrosion Using the Jaguar Land Rover approved diagnostic equipment, record all engine airpath pressure sensors (MAP, Post compressor, post intercooler and ambient pressure) With the ignition on all pressure sensors values should be close to ambient pressure. There will be some sensor to sensor tolerance differences so they all wont be exactly ambient pressure, if the sensor reporting the DTC shows an offset high of greater than 150hPa then the electrical harness needs to be checked before replacing the sensor Refer to the electrical circuit diagrams and check post turbocharger compressor pressure sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance Using the Jaguar Land Rover approved diagnostic equipment check datalogger signal 0x033C to read sensor voltage, value must be 0.2 volts or above, but not more than 4.75 Volts. A higher voltage implies short circuit to 5 volts or open circuit harness failure. Less than 0.2 volts indicates short circuit to ground. If reading is within range, then the sensor is electrically connected and harness is OK. Disconnect sensor connector, with ignition on, check for 5 Volts between pin 1 (ground) and pin 3 (5 Volt) if not 5 volts a line is open circuit Disconnect sensor connector, with ignition on, check Voltage between pin 1 (ground) and pin 2 (signal). Typically, this should be approximately 5.8 volts Install new post turbocharger compressor pressure sensor, only when diagnosed as failed Inspect TMAP post WCAC sensor connectors for signs of water ingress, and pins for damage and/or corrosion Refer to the electrical circuit diagrams and check TMAP post WCAC sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance Check powertrain control module for related ambient pressure DTCs and refer to relevant DTC index, rectify these first Be aware of what the actual expected atmospheric pressure is in your location and compare to the manifold sensor for an additional cross check. Check the boost pressure sensor, manifold sensor and ambient pressure sensor values at ignition on only, All sensors should read atmospheric pressure. If the boost sensor is reading higher than the ambient and manifold pressure sensor, check the electrical connections for correct installation Using the Jaguar Land Rover approved diagnostic equipment check datalogger signal Boost Pressure Control (0xF470) Inspect connectors for signs of water ingress, and pins for damage and/or corrosion Refer to the electrical circuit diagrams and check the TMAP post intercooler temperature sensor circuit for Short circuit to ground Short circuit to power Open circuit High resistance Test air intake system, boost air system for air leaks Install new turbocharger, only when diagnosed as failed Check compressor bypass valve for mechanical integrity Check air intake system, low pressure intake for blockages or restriction Check exhaust system, for blockages or restriction Check charge air pressure sensor for blockage Refer to the electrical circuit diagrams and check the charge air pressure sensor circuit for Short circuit to ground Short circuit to power Open circuit High resistance Inspect connectors for signs of water ingress, and pins for damage and/or corrosion Check for restriction in the charge air cooler Check compressor bypass throttle for restricted movement Check for stuck open compressor bypass valve Check integrity of charge hose between the charge air cooler and the throttle body Check integrity of charge hose between the main turbo and the electric supercharger/compressor bypass throttle If this DTC is reported on its own please carry out the following: Check for mechanical integrity of the compressor at the electric supercharger for evidence of damage to the blades Check the hose from the electric supercharger to the charge air cooler for integrity
Poor acceleration and lack of power, when hot	PCM connector is disconnected, connector pin is backed out, connector pin corrosion Offset post turbocharger compressor pressure sensor Blocked pressure sensor pipe between pressure sensor and pipe connection Post turbocharger compressor pressure sensor connector is disconnected, connector pin is backed out, connector pin corrosion Post turbocharger compressor pressure sensor - Wiring integrity short circuit to ground, short circuit to power, open circuit, high resistance Post turbocharger compressor pressure sensor failure Offset TMAP post WCAC sensor Offset ambient pressure sensor Other ambient pressure related DTCs TMAP post WCAC sensor connector is disconnected, connector pin is backed out, connector pin corrosion TMAP post WCAC sensor harness failure - Wiring integrity short circuit to ground, short circuit to power, open circuit, high resistance TMAP post WCAC sensor failure TMAP post intercooler temperature sensor - Wiring integrity Air intake system, boost air system high pressure boost air leak Turbocharger seized Compressor bypass valve stuck open Air intake system, low pressure intake blocked or restricted Charge air pressure sensor blocked Charge air pressure sensor - Wiring integrity Damaged compressor blades on the electric supercharger Restriction in the WCAC Compressor bypass throttle not closing fully Offset boost pressure sensors Stuck open compressor bypass valve	Inspect PCM connectors for signs of water ingress, and pins for damage and/or corrosion Using the Jaguar Land Rover approved diagnostic equipment, record all engine airpath pressure sensors (MAP, Post compressor, post intercooler and ambient pressure) With the ignition on all pressure sensors values should be close to ambient pressure. There will be some sensor to sensor tolerance differences so they all wont be exactly ambient pressure, if the sensor reporting the DTC shows an offset high of greater than 150hPa then the electrical harness needs to be checked before replacing the sensor Refer to the electrical circuit diagrams and check post turbocharger compressor pressure sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance Using the Jaguar Land Rover approved diagnostic equipment check datalogger signal 0x033C to read sensor voltage, value must be 0.2 volts or above, but not more than 4.75 Volts. A higher voltage implies short circuit to 5 volts or open circuit harness failure. Less than 0.2 volts indicates short circuit to ground. If reading is within range, then the sensor is electrically connected and harness is OK. Disconnect sensor connector, with ignition on, check for 5 Volts between pin 1 (ground) and pin 3 (5 Volt) if not 5 volts a line is open circuit Disconnect sensor connector, with ignition on, check Voltage between pin 1 (ground) and pin 2 (signal). Typically, this should be approximately 5.8 volts Install new post turbocharger compressor pressure sensor, only when diagnosed as failed Inspect TMAP post WCAC sensor connectors for signs of water ingress, and pins for damage and/or corrosion Refer to the electrical circuit diagrams and check TMAP post WCAC sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance Check powertrain control module for related ambient pressure DTCs and refer to relevant DTC index, rectify these first Be aware of what the actual expected atmospheric pressure is in your location and compare to the manifold sensor for an additional cross check. Check the boost pressure sensor, manifold sensor and ambient pressure sensor values at ignition on only, All sensors should read atmospheric pressure. If the boost sensor is reading higher than the ambient and manifold pressure sensor, check the electrical connections for correct installation Using the Jaguar Land Rover approved diagnostic equipment check datalogger signal Boost Pressure Control (0xF470) Inspect connectors for signs of water ingress, and pins for damage and/or corrosion Refer to the electrical circuit diagrams and check the TMAP post intercooler temperature sensor circuit for Short circuit to ground Short circuit to power Open circuit High resistance Test air intake system, boost air system for air leaks Install new turbocharger, only when diagnosed as failed Check compressor bypass valve for mechanical integrity Check air intake system, low pressure intake for blockages or restriction Check exhaust system, for blockages or restriction Check charge air pressure sensor for blockage Refer to the electrical circuit diagrams and check the charge air pressure sensor circuit for Short circuit to ground Short circuit to power Open circuit High resistance Inspect connectors for signs of water ingress, and pins for damage and/or corrosion Check for restriction in the charge air cooler Check compressor bypass throttle for restricted movement Check for stuck open compressor bypass valve Check integrity of charge hose between the charge air cooler and the throttle body Check integrity of charge hose between the main turbo and the electric supercharger/compressor bypass throttle If this DTC is reported on its own please carry out the following: Check for mechanical integrity of the compressor at the electric supercharger for evidence of damage to the blades Check the hose from the electric supercharger to the charge air cooler for integrity
Engine judders and shakes, when hot	Connector is disconnected, connector pin is backed out, connector pin corrosion Compressor bypass control actuator - Wiring integrity Compressor bypass control actuator - Mechanical integrity Compressor bypass control actuator failure	Inspect connectors for signs of water ingress, and pins for damage and/or corrosion Refer to the electrical circuit diagrams and check the compressor bypass control actuator circuit for Fuse failure Short circuit to ground Short circuit to power Open circuit High resistance Check compressor bypass control actuator for Wiring integrity Mechanical integrity Frozen Install new compressor bypass control actuator, only when diagnosed as failed
PCM overheating	Coolant leak	Check PCM cooling pipes for leakage/blockage