Pinpoint Test HN: Turbocharger System: Introduction: Notes

WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2013 Lincoln Navigator, 2013 Lincoln MKZ, 2013 Lincoln MKX, 2013 Lincoln MKT, and 2013 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: WHILE CONDUCTING TESTS ON A HOT ENGINE TAKE ALL SAFETY PRECAUTIONS TO PREVENT SKIN CONTACT WITH HOT ENGINE COMPONENTS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

WARNING: STRICT OBSERVANCE OF POSTED SPEED LIMITS AND DRIVING CONDITIONS IS MANDATORY WHEN PROCEEDING THROUGH THE FOLLOWING DRIVE CYCLES.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

NOTE: To recreate the original conditions that set the DTC or caused the symptom, the vehicle may require driving.

This pinpoint test is intended to diagnose the following:

turbocharger bypass (TCBY) valve (9K378)
turbocharger bypass 2 (TCBY2) valve (9K378)
turbocharger wastegate regulating valve solenoid (9E882)
wastegate vacuum sensor (9F479)
leaks or restrictions in the intake air system and charge air cooler (CAC)
powertrain control module (PCM) (12A650)

Fig 1: Identifying Turbocharger Bypass Valve (TCBY) Connector
Courtesy of FORD MOTOR CO.

Fig 2: Identifying Turbocharger Bypass Valve 2 (TCBY2) Connector

Courtesy of FORD MOTOR CO.

Fig 3: Identifying Turbocharger Wastegate Regulating Valve Solenoid Connector

Courtesy of FORD MOTOR CO.

Fig 4: Identifying Wastegate Vacuum Sensor Connector

Courtesy of FORD MOTOR CO.