PINPOINT TEST QA: Unable to Activate Self-Test/Network Communication Error: Introduction

This pinpoint test is intended to diagnose the following:

VREF INFORMATION TABLE

Fig 1: Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector - B

Courtesy of FORD MOTOR CO.

Fig 3: Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector - C

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
E-Series 4.6L, Edge, F-150 4.2L, F-150 4.6L, Focus, MKX, MKZ, Sable, Taurus, Taurus X	A	2 3	ETCRTN ETCREF
Fusion 2.3L, Milan 2.3L	B	3 5	ETCRTN ETCREF
Fusion 3.0L, Milan 3.0L	B	4 5	ETCRTN ETCREF
All other vehicles	C	3 2	ETCRTN ETCREF

Fig 4: Fuel Rail Pressure Temperature (FRPT) Sensor Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
4	SIGRTN (Signal Return)
2	VREF (Reference Voltage)

Fig 5: Throttle Position (TP) Sensor Connector - A

Courtesy of FORD MOTOR CO.

Fig 6: Throttle Position (TP) Sensor Connector - B

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Escape/Mariner 2.3L, Ranger 2.3L	A	1 3	SIGRTN VREF
All other vehicles	B	3 1	SIGRTN VREF

Vehicle	Connector	Pin	Circuit
Edge, MKX, Sable, Taurus, Taurus X	190 Pin	B67, B68, B69, B70 B51, B52, B53 B8 B7	PWRGND VPWR PCMRC ISP-R
Escape/Mariner	150 (50-50-50) Pin	B47, B48, B49, B50 B35, B36	PWRGND VPWR
Expedition, Navigator	140 Pin	B67, B68, B69, B70 B51, B52, B53 B8 B7	PWRGND VPWR PCMRC ISP-R
Explorer, Explorer Sport Trac, Mountaineer, Mustang	170 Pin	B47, B48, B49, B50 B35, B36 B37 B46	PWRGND VPWR PCMRC ISP-R
F-150, Mark LT	190 Pin	B67, B68, B69, B70 B51, B52, B53 B40 B17	PWRGND VPWR PCMRC ISP-R
F-Super Duty	170 Pin	B47, B48, B49, B50 B35, B36 B37 B31	PWRGND VPWR PCMRC ISP-R
Focus	190 Pin	B69, B70 B67, B68 B38 B42	PWRGND VPWR PCMRC ISP-R
Fusion, Milan, MKZ	140 Pin	B67, B68, B69 B51, B52 B35 B37	PWRGND VPWR PCMRC ISP-R
All other vehicles	170 Pin	B47, B48, B49, B50 B35, B36	PWRGND VPWR