PINPOINT TEST HN: Turbocharger System: Introduction

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. 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
turbocharger bypass 2 (TCBY2) valve
turbocharger wastegate regulating valve solenoid
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 (TC Wastegate Regulating Valve) Solenoid Connector

Courtesy of FORD MOTOR CO.

Powertrain Control Module (PCM) Connector

For PCM connector views or reference values, refer to REFERENCE VALUES .

POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PINS REFERENCE CHART

Vehicle	Connector	Pin	Circuit
F-150	198 PIN	E16 E19 E3	TCWRVS TCBY2 TCBY
All other vehicles	190-PIN	E16 B4 E14	TCWRVS TCBY2 TCBY