Ford Escape: Electronic Engine Controls / Specifications

  Reference Value Symptom Chart

NOTE: The Reference Value Symptom Chart provides guidance in selecting the appropriate parameter identification (PID) or measured signal related to the fault area. Select a symptom from the symptom chart along with the category number and go to the PID/Measured Signal Chart. For multiple symptoms, select the symptom that is the most evident.

Symptom Occurs During	Symptom	Category Number
Startup:	No start/Normal crank	1
	Hard start/Long crank	2
	Stall after start	3
	Diesels/Runs on	4
Idle:	MIL	5
	Stalls/Quits	6
	Slow	7
	Slow return	8
	Rolling	9
	Fast	10
	Rough	11
	Misses	12
	Backfires	13
Acceleration:	Stalls/Quits	6
	Misses	12
	Bucks/Jerks	14
	Backfires	13
	Hesitation	15
	Lack/Loss of power	16
	Surge	17
	Spark knock	18
	Cooling system temperature	19
	Poor fuel economy	20
	Emissions compliance	21
Cruise:	Stalls/Quits	6
	Misses	12
	Bucks/Jerks	14
	Backfires	13
	Lack/Loss of power	16
	Surge	17
	Spark knock	18
	Cooling system temperature	19
	Poor fuel economy	20
	Emissions compliance	21
Deceleration:	Stalls/Quits	6
	Backfires	13

  Reference Value Parameter Identification (PID)/Measured Signal Chart

NOTE: The following listing reflects PIDS and/or measured values which may reveal a possible concern within each system shown. Match the category number with the related PID/measured signal and go to the Typical Diagnostic Reference Value Charts.

Category Number	Related PIDS/Measured Signals
5, 10, 17	ACP
1, 23	APP1
1, 23	APP2
23	BOO1/BOO2
18, 19	CHT
1, 2, 3, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 20, 21	CKP
1, 2, 3, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 20, 21	CMP
10	CPP/PNP
3, 5, 6, 7, 9, 11, 15, 16, 20, 21	DPFEGR
4, 18, 19, 21, 22	ECT
3, 5, 6, 7, 9, 11, 15, 16, 20, 21	EGRMC1 through 4
3, 5, 6, 7, 9, 11, 15, 16, 20, 21	EGRMDSD
3, 5, 6, 7, 9, 11, 15, 16, 20, 21	EGRVR
5, 18, 19, 20, 21	EOT
3, 5, 6, 11, 21	EVAPCV
3, 5, 6, 11, 21	EVMV
20	FLI
1 through 21	FP
1 through 21	FPM
1 through 21	FRP
1 through 21	FRT
5	FTP
1 through 21	FUELPW1/2
1 through 21	FUELSYS (OL/CLSD-LP)
19	HFC
1 through 21	HTR11/12/21/22
2, 3, 5, 7, 8, 10, 22	IAT
2, 3, 5, 7, 8, 10, 22	IAT2
5, 14, 15, 16, 17, 20	IMTV
4, 5, 16, 18, 19, 20, 21	KS
19	LFC
1 through 21	LONGFT1/2
1 through 23	MAF
1 through 23	MAP
1 through 22	MISF
1 through 21	O2S11/12/21/22
22	OSS
10	PSP
5	PTO
1 through 23	RPM
5, 14, 16, 17	SCICP
1 through 21	SHRTFT1/2/11/12/21/22
15, 16, 18, 19, 20, 21	SPARKADVa
1, 23	TP
2, 4, 5, 9, 10, 11, 16, 17, 18, 19, 20, 21	VCT
2, 4, 5, 9, 10, 11, 16, 17, 18, 19, 20, 21	VCTDC/VCTDC2
1, 2, 3, 5, 6, 11, 12, 13, 14	VPWR
22, 23	VSS

  Typical Diagnostic Reference Values

NOTE: Footnotes are referenced throughout the Typical Diagnostic Reference Value Charts. A letter in parentheses next to a value indicates supplemental information is available.

An attempt is made to provide as much information as possible. Some vehicles may not display all input and output signals. The Typical Diagnostic Reference Value Charts do not display fault parameter identifications (PIDs). These are PIDs which indicate a hard fault with the circuit. They display a value of FAULT or NO FAULT and are PIDs ending with the letter F. Reference values may vary 20% depending on operating conditions, altitude, and other factors. The RPM values are axle and tire dependent. Values are taken at an altitude of approximately 189 meters (620 ft) above sea level with the engine at normal operating temperature and accessories off. For detailed transmission diagnostics, refer to the Workshop Manual. Transmission signals may be referred to in either alpha or numeric form. For example, 1=A, 2=B, 3=C.

• Value is not useful under this condition.
• Value depends on fuel tank level. Typical operating range is 15% (empty) to 90% (full).
• Heated oxygen sensors (HO2S) should switch from rich to lean at least once every 3 seconds. HO2S voltage should toggle above and below 0.450 DCV and never be a negative value. Valid HO2S switching occurs only during closed loop fuel control operation.
• Downstream oxygen sensors stay close to a constant voltage when the catalyst monitor is off (positive value only). When the catalyst monitor is on, the HO2S switches from rich to lean above and below 0.450 DCV and should never be a negative value. For downstream oxygen sensors (12, 22) greater activity results when the catalyst monitor is active.
• The normal operation value is from -1.5 to 3.5 degrees.

PID	Units Measured/PID	Component/PID Only	Measured/PID Values
			KOEO	Hot Idle	48KM/H (30 MPH)	89 KM/H (55 MPH)
PCM  AAT (Deg C)	DEG C (DEG F)	AAT Sensor	1 (33.8)	1 (33.8)	1 (33.8)	1 (33.8)
PCM  AAT_V (V)	VOLTS	AAT Sensor	3.74	3.75	3.84	3.877
PCM  AC_REQUEST	YES/NO	PID	NO	NO	NO	NO
PCM  APP (%)	%	APP Sensor	0	0	11	30
PCM  APP1 (V)	VOLTS	APP Sensor	0.81	0.81	1.18	1.77
PCM  APP1_[APP_D] (%)	%	APP Sensor	16	16	24	35
PCM  APP2 (V)	VOLTS	APP Sensor	0.41	0.41	0.60	0.89
PCM  APP2_[APP_E] (%)	%	APP Sensor	8	8	12	18
PCM  APP_MAXDIFF (Deg)	DEG	PID	0.00	0.00	0.00	0.06
PCM  BARO (kPa)	kPa (PSI)	PID	100 (14.50)	100 (14.50)	99 (14.36)	99 (14.36)
PCM  BARO_V (V)	VOLTS	PID	4.01	4.01	4.00	3.99
PCM  BRKOVRD_POSS (Undefined / Not Used)	NUMERIC VALUE	PID	0	0	0	0
PCM  BRKOVR_ACTION (Undefined / Not Used)	NUMERIC VALUE	PID	0	0	0	0
PCM  CAM_SYNC	YES/NO	PID	NO	NO	NO	NO
PCM  CATTEMP11 (Deg C)	DEG C (DEG F)	CAT11 Sensor	283 (541.4)	288 (550.4)	292 (557.6)	328 (622.4)
PCM  CHT (Deg C)	DEG C (DEG F)	CHT Sensor	84 (183.2)	83 (181.4)	63 (145.4)	74 (165.2)
PCM  CHT_V (V)	VOLTS	CHT Sensor	0.71	0.75	1.27	0.94
PCM  CLRDIST (km)	KM (MILES)	PID	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	1.0 (0.62)
PCM  DECHOKE	YES/NO	PID	YES	YES	NO	NO
PCM  DIST_AEIS (km)	KM (MILES)	PID	4.0 (2.49)	4.0 (2.49)	4.0 (2.49)	5.0 (3.11)
PCM  DIST_BRKOVRD (km)	KM (MILES)	PID	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)
PCM  DTCCNT (Undefined / Not Used)	NUMERIC VALUE	PID	0	0	0	0
PCM  DTCCNT_OBD (Undefined / Not Used)	NUMERIC VALUE	PID	0	0	0	0
PCM  EBP (kPa)	kPa (PSI)	EBP Sensor	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)
PCM  EBP_V (V)	VOLTS	EBP Sensor	0.99	0.99	1.05	1.05
PCM  ECT (Deg C)	DEG C (DEG F)	ECT Sensor	84 (183.2)	82 (179.6)	62 (143.6)	73 (163.4)
PCM  EGRT_B_V (V)	VOLTS	EGRT12 Sensor	2.57	2.61	1.74	1.47
PCM  EGRVP (V)	VOLTS	EGR Valve	0.53	0.53	1.17	1.27
PCM  EGRVPDES (%)	%	PID	0	0	17	19
PCM  EGR_A_ACT (%)	%	EGR Valve	0	0	0	0
PCM  EGR_A_CMD (%)	%	PID	0	0	0	0
PCM  EQ_RAT11 (Undefined / Not Used)	RATIO	PID	0.00	1.08	1.01	1.01
PCM  ETC_ACT (Deg)	DEG	PID	7.89	7.89	14.18	13.71
PCM  ETC_TRIM (Deg)	DEG	PID	0.64 (E)	0.64 (E)	0.46 (E)	0.46 (E)
PCM  ETC_[TAC_PCT] (%)	%	PID	9	9	17	16
PCM  EVAPPCT (%)	%	PID	0	0	17	98
PCM  EVAPSTA	STATUS	PID	NOT RUNNING	NOT RUNNING	NOT RUNNING	NOT RUNNING
PCM  FAN_DSD (%)	%	PID	0	0	0	0
PCM  FLI (%)	%	Fuel Level Sensor	42 (B)	43 (B)	44 (B)	42 (B)
PCM  FP (%)	%	Fuel Pump Control Module	75	75	34	34
PCM  FPM (%)	%	PID	40	40	40	40
PCM  FTP_V (V)	VOLTS	FTP Sensor	1.82	1.82	1.91	1.91
PCM  FUELSYS_CL	YES/NO	PID	NO	NO	YES	YES
PCM  FUELSYS_OL	YES/NO	PID	NO	NO	NO	NO
PCM  FUEL_RDY	YES/NO	PID	NO	NO	NO	NO
PCM  HFC	ON/OFF	PID	OFF	OFF	OFF	OFF
PCM  HTR11	ON/OFF	HO2S11 Sensor	OFF	ON	ON	ON
PCM  HTR12	ON/OFF	HO2S12 Sensor	OFF	ON	ON	ON
PCM  HTR22	ON/OFF	HO2S22 Sensor	OFF	ON	OFF	OFF
PCM  HTRCM11 (Amp)	mA	HO2S11 Sensor	0.00	0.00	0.00	0.00
PCM  HTRCM12 (Amp)	mA	HO2S12 Sensor	0.00	0.00	0.00	0.00
PCM  IAT (Deg C)	DEG C (DEG F)	IAT Sensor	32 (89.6)	32 (89.6)	17 (62.6)	18 (64.4)
PCM  INJECTOR_OFF	-----/DISABLE	Injector 1–4	-----	-----	-----	-----
PCM  INJ1_F	YES/NO	PID	NO	NO	NO	NO
PCM  INJ2_F	YES/NO	PID	NO	NO	NO	NO
PCM  INJ3_F	YES/NO	PID	NO	NO	NO	NO
PCM  INJ4_F	YES/NO	PID	NO	NO	NO	NO
PCM  KNOCK_1 (Undefined / Not Used)	COUNT	KS11 Sensor	0.00	0.00	0.00	255.00
PCM  LFC	ON/OFF	PID	OFF	OFF	OFF	OFF
PCM  LOAD (%)	%	PID	(A)	0	0	67
PCM  LOAD_ABSL (%)	%	PID	(A)	0	0	45
PCM  LONGFT1 (%)	%	PID	(A)	-20 TO +20	-20 TO +20	-20 TO +20
PCM  MAP (kPa)	kPa (PSI)	MAP Sensor	99 (14.36)	99 (14.36)	99 (14.36)	84 (12.18)
PCM  MAP_V (V)	VOLTS	MAP Sensor	3.97	3.97	3.97	3.33
PCM  MFC	ON/OFF	PID	OFF	OFF	OFF	OFF
PCM  MIL_DIS (km)	KM (MILES)	PID	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)
PCM  MIL_OBD	ON/OFF	PID	OFF	OFF	OFF	OFF
PCM  MISFIRE	TRUE/FALSE	PID	FALSE	FALSE	FALSE	FALSE
PCM  MP_LRN	TRUE/FALSE	PID	TRUE	TRUE	TRUE	TRUE
PCM  NUM_MISFIRE (Undefined / Not Used)	COUNT	PID	0	0	4	4
PCM  O2S11_CUR (mA)	mA/uA	HO2S11 Sensor	(A)	switching (C)	switching (C)	switching (C)
PCM  O2S11_HTR (%)	%	HO2S11 Sensor	20	20	21	27
PCM  O2S11_IMPED (V)	VOLTS	HO2S11 Sensor	5.00	0.19	0.18	0.19
PCM  O2S11_READY	TRUE/FALSE	HO2S11 Sensor	FALSE	TRUE	TRUE	TRUE
PCM  O2S12 (V)	VOLTS	HO2S12 Sensor	(A)	switching (D)	switching (D)	switching (D)
PCM  O2_DS_DISBL	TRUE/FALSE	PID	TRUE	TRUE	TRUE	FALSE
PCM  OCTADJ_R_LRND (Undefined / Not Used)	%	PID	0	0	0	0
PCM  RO2FT1 (%)	%	PID	0.00	0.00	0.00	0.02
PCM  RPM (Rpm)	RPM	CKP Sensor	0	0	1,734	2,022
PCM  RPM_DSD (Rpm)	RPM	PID	700	700	700	700
PCM  SHRTFT1 (%)	%	PID	(A)	-10 TO +10	-10 TO +10	-10 TO +10
PCM  SPARKADV (Deg)	DEG	PID	-15.00	-15.00	16.50	35.50
PCM  SYNC	YES/NO	PID	NO	YES	YES	YES
PCM  TP1_LRN_TRIM (Deg)	DEG	ETBTPS	15.38	15.38	15.38	15.38
PCM  TP1_PER (%)	%	ETBTPS	23	23	28	29
PCM  TP1_V (V)	VOLTS	ETBTPS	4.09	4.09	3.87	3.83
PCM  TP2_LRN_TRIM (Deg)	DEG	ETBTPS	7.88	7.88	7.88	7.88
PCM  TP2_PER (%)	%	ETBTPS	24	24	33	35
PCM  TP2_V (V)	VOLTS	ETBTPS	1.23	1.23	1.67	1.74
PCM  TP_MAXDIFF (Deg)	%	PID	0.00	0.00	0.00	0.00
PCM  TP_REL (%)	VOLTS	PID	7	7	13	14
PCM  VCTSYS	ENABLED / DISABLED	PID	DISABLED	DISABLED	ENABLED	ENABLED
PCM  VCT_INT_ACT1 (Deg)	DEG	PID	0.00	0.00	-44.94	-33.44
PCM  VCT_INT_DC1 (%)	%	VCT11 Solenoid	0	0	35	35
PCM  VCT_INT_DIF1 (Deg)	DEG	PID	0.00	0.00	0.00	0.38
PCM  VPWR (V)	VOLTS	PID	VBAT	VBAT	VBAT	VBAT
PCM  VREF (V)	VOLTS	PID	5	5	5	5
PCM  VSS (Kph)	km/h (MPH)	PID	0 (0)	0 (0)	48 km/h (30 MPH)	89 km/h (55 MPH)