Possible causes – Blown Fuel Pump fuse– Open Fuel Pump Monitor Circuit– Faulty Fuel Pump Relay– Damaged ECM When is the code detected? The code will be set if an incorrect voltage on the control circuit of the fuel pump

Possible causes – Dirty engine oil– Low engine oil level– Faulty exhaust valve control solenoid– Exhaust valve control solenoid harness is open or shorted– Exhaust valve control solenoid circuit poor electrical connection When is the code detected? ECM monitors OCV

Possible causes – Dirty engine oil– Low engine oil level– Faulty exhaust valve control solenoid– Exhaust valve control solenoid harness is open or shorted– Exhaust valve control solenoid circuit poor electrical connection When is the code detected? ECM monitors OCV

Possible causes – Dirty engine oil– Low engine oil level– Faulty intake valve control solenoid– Intake valve control solenoid harness is open or shorted– Intake valve control solenoid circuit poor electrical connection When is the code detected? ECM monitors OCV

Possible causes – Dirty engine oil– Low engine oil level– Faulty intake valve control solenoid– Intake valve control solenoid harness is open or shorted– Intake valve control solenoid circuit poor electrical connection When is the code detected? ECM monitors OCV

Possible causes – Dirty engine oil– Low engine oil level– Timing belt misalign– Faulty AVCS solenoid Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of power– Engine rough idle

Possible causes – Dirty engine oil– Low engine oil level– Timing belt misalign– Faulty AVCS solenoid Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of power– Engine rough idle

Possible causes – Dirty engine oil– Low engine oil level– Timing belt misaligned– Faulty AVCS solenoid Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of power– Engine noise– Engine rough idle

Possible causes – Dirty engine oil– Low engine oil level– Timing belt misalign– Faulty AVCS solenoid Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of power– Engine rough idle

Possible causes – Dirty Oil– Engine mechanical problems– Timing belt misalignment Symptoms – Engine Light ON (or Service Engine Soon Warning Light) SUBARU Technical Service Bulletins for P0019 code 2013 SUBARU XV CROSSTREK 118000 ELECTRICAL SYSTEM: SOFTWARE 2013 SUBARU IMPREZA

Possible causes – Dirty Oil– Engine mechanical problems– Timing belt misalignment Symptoms – Engine Light ON (or Service Engine Soon Warning Light) SUBARU Technical Service Bulletins for P0017 code 2013 SUBARU XV CROSSTREK 118000 ELECTRICAL SYSTEM: SOFTWARE 2013 SUBARU IMPREZA

Possible causes – Dirty Oil– Engine mechanical problems– Timing belt misalignment Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Dirty Oil– Engine mechanical problems– Timing belt misalignment Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – Dirty transmission fluid– Low transmission fluid level– Faulty line pressure solenoid valve ‘A’– Line pressure solenoid valve ‘A’ harness is open or shorted– Line pressure solenoid valve ‘A’ circuit poor electrical connection When is the code detected?

Possible causes – Drive-by-wire control system malfunction– Throttle actuator malfunction– Throttle valve malfunction– PCM malfunction Tech notes Dirty or clogged throttle body can triggered the P0638 code. Before replacing any parts try cleaning the throttle body and reset the engine

Possible causes – Engine Control Module (ECM) may be faulty– ECM harness power supply circuit is open or shorted– ECM harness ground circuit is open or shorted Tech notes Check the PCM fuse, if fuse is OK try erasing the