Ford Escape Manuals

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)

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