Pinpoint Test Z: Intermittent: Introduction

WARNING: CROWN VICTORIA POLICE INTERCEPTOR VEHICLES EQUIPPED WITH FIRE SUPPRESSION SYSTEM, REFER TO FIRE SUPPRESSION SYSTEM FOR IMPORTANT SAFETY WARNINGS . FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

This pinpoint test is intended to diagnose and isolate intermittent concerns for the following:

all electronic engine control (EEC) subsystems

This chart is used to determine which test to run for the suspect circuit. PIDs corresponding to each circuit are listed. Some circuits do not have an associated PID or the PID may not be available and has to be measured with a digital multimeter (DMM). More specific information on the PID can be found in REFERENCE VALUES . If the vehicle has a coil pack system with a no start condition, carry out the ignition test.

PCM PIDS/SIGNALS

PCM/TCM PIDS/SIGNALS	Associated Circuit	Test Type
4X4	4X4	input
ACCS	A/CCS	input
ACCR (WAC)	ACCR	output
ACET	ACET	input
ACP, ACP V	ACPSW	input
AIR	AIR	output
AIRM	AIRM	input
APP1	APPS	input
APP2	APPS	input
APP3	APPS	input
BPS/BOO	BPS	input
CCS	CCS	output
Use Digital Multimeter	CD-A (primary)	output
Use Digital Multimeter	CD-B (primary)	output
Use Digital multimeter	CD-C (primary)	output
Use Digital Multimeter	CD-D (primary)	output
CHT, CHT V	CHT	input
CKP	CKP	input
CMP	CMP	input
CPP	CPP	input
CTO	CTO	output
DPFEGR	DPFE	input
ECT, ECT V	ECT	input
EGRMC1	EGRMC1	output
EGRMC2	EGRMC2	output
EGRMC3	EGRMC3	output
EGRMC4	EGRMC4	output
EGRMDSD	EGRMC	output
EGRVR	EGRVR	output
EOT, EOT V	EOT	input
EPC, EPC V	EPC	output
EVAPC V	CV	output
EVAPPDC	VMV	output
EVAPPF	VMV	output
EVAPPF	VMV	output
FLI, FLI V	FLI	input
FP	FP	output
FPM	FPM	input
FP M	FPM	input
FRP, FRP V	FRP	input
FRT	FRT	input
FTP, FTP V	FTP	input
GEN RC	GENRC	output
GENLI	GENLI	input
HFC	HFC	output
HOS11	HEGO	input
HOS12	HEGO	input
HOS13	HEGO	input
HTR11	HEGO	output
HTR12	HEGO	output
HTR13	HEGO	output
IAC	IAC	output
IAT, IAT V	IAT	input
IAT2, IAT2 V	IAT 2	input
IMRC	IMRC	output
IMRCM	IMRCM	input
IMTV1	IMTV1	output
IMTV2	IMTV2	output
KS1	KS1	input
KS2	KS2	input
LFC	LFC	output
MAF, MAF V	MAF	input
MAP V	MAP	input
OSS	OSS	input
PSP, PSPV	PSP	input
PSPT	PSP	input
PTO	PTO	input
SS1	SS1	output
SS2	SS2	output
SS3	SS3	output
SS4	SS4	output
TACM (+)	TACM (+)	output
TACM (-)	TACM (-)	output
TP1	TP1	input
TP2	TP2	input
TCC	TCC	output
TCIL	TCIL	output
TCS	TCS	input
TFT, TFT V	TFT	input
TP, TPV	TP	input
TSS/ISS	TSS	input
VCT1	VCT1	output
VCT2	VCT2	output
VPWR	VPWR	input
Use Digital Multimeter	VREF	output
Use Digital Multimeter	VSO	output
VSS	VSS+	input
WAC	WAC	output