On Board Diagnostics II PCED

1999 PCED On Board Diagnostics II

SECTION 5: Pinpoint Tests

C: Reference Voltage
Introduction

C: Pinpoint Tests

Note

This Pinpoint Test is intended to diagnose the following:

Sensor harness circuits: SIG RTN, VREF
3-wire sensors: throttle position (TP) sensor, differential pressure feedback EGR sensor, A/C pressure (ACP) sensor, fuel tank pressure (FTP) sensor, power steering pressure (PSP) sensor, fuel rail pressure (FRP) sensor and barometric (BARO) pressure sensor.
Powertrain control module (PCM) (12A650)

Pinpoint Test Schematics and Connectors

LS6/LS8

All Other

SENSORS CONNECTED TO VREF

Applications	TP	EGR	FTP	ACP	PSP	FRP	BARO
3.0L FFV Taurus	X	D.P.F. EGR
2.5L Contour/Mystique, Cougar	X	D.P.F. EGR	X
Mustang, Ranger	X	D.P.F. EGR	X			X
Taurus/Sable, Taurus SHO Town Car	X X	D.P.F. EGR D.P.F. EGR	X X
Explorer/Mountaineer	X	D.P.F. EGR	X
Crown Victoria (except NGV) Grand Marquis,	X X	D.P.F. EGR D.P.F. EGR	X X
Lightning	X	X	X			X	X
E/F-Series (except NGV),	X	D.P.F. EGR	X			X
Expedition/Navigator	X	D.P.F. EGR	X
Continental, LS6/LS8	X	D.P.F. EGR	X	X		X
Windstar	X	D.P.F. EGR	X	X
2.0L 4V Escort	X		X	X	X	X
2.0L 2V Escort/Tracer	X	D.P.F. EGR	X		X	X
2.0L Contour/Mystique, Cougar	X		X		X
Crown Victoria w/NGV 5.4L E/F Series w/NGV	X X	D.P.F. EGR	X X			X X

C: Pinpoint Tests