Electronic Engine Controls - 5.0L 32V Ti-VCT: 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 | SPARKADV |
| 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 appropriate service information. 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) | |||
| PCMAAT (Deg C) | DEG C (DEG F) | AAT Sensor | 17 (62.6) | 17 (62.6) | 17 (62.6) | 16 (60.8) |
| PCMAAT_V (V) | VOLTS | AAT Sensor | 3.13 | 3.13 | 3.14 | 3.19 |
| PCMAEIS_ACTION | NUMERIC VALUE | PID | 0 | 0 | 0 | 0 |
| PCMAEIS_POSS | NUMERIC VALUE | PID | 0 | 0 | 0 | 0 |
| PCMAPP (%) | % | APP Sensor | 0 | 0 | 13 | 18 |
| PCMAPP1 (V) | VOLTS | APP Sensor | 0.77 | 0.77 | 1.18 | 1.33 |
| PCMAPP1_[APP_D] (%) | % | APP Sensor | 15 | 15 | 24 | 26 |
| PCMAPP2 (V) | VOLTS | APP Sensor | 0.40 | 0.40 | 0.62 | 0.69 |
| PCMAPP2_[APP_E] (%) | % | APP Sensor | 8 | 8 | 12 | 14 |
| PCMAPP_MAXDIFF (Deg) | DEG | PID | 0.00 | 0.00 | -0.06 | -0.06 |
| PCMBARO (kPa) | kPa (PSI) | PID | 98 (14.21) | 98 (14.21) | 98 (14.21) | 98 (14.21) |
| PCMBARO_V (V) | VOLTS | PID | 3.84 | 3.84 | 3.84 | 3.84 |
| PCMBRKOVRD_POSS | NUMERIC VALUE | PID | 14 | 14 | 15 | 15 |
| PCMBRKOVR_ACTION | NUMERIC VALUE | PID | 0 | 0 | 0 | 0 |
| PCMCAM_SYNC | YES/NO | PID | NO | NO | NO | NO |
| PCMCATTEMP11 (Deg C) | DEG C (DEG F) | CAT11 Sensor | 409 (768.2) | 409 (768.2) | 628 (1, 162.4) | 840 (1, 544) |
| PCMCATTEMP21 (Deg C) | DEG C (DEG F) | CAT21 Sensor | 409 (768.2) | 409 (768.2) | 628 (1, 162.4) | 839 (1, 542.2) |
| PCMCHT (Deg C) | DEG C (DEG F) | CHT Sensor | 96 (204.8) | 95 (203) | 98 (208.4) | 99 (210.2) |
| PCMCHT_V (V) | VOLTS | CHT Sensor | 3.54 | 3.54 | 3.46 | 3.42 |
| PCMCLRDIST (km) | KM (MILES) | PID | 0 (0) | 0 (0) | 0 (0) | 1 (0.62) |
| PCMDECHOKE | YES/NO | PID | YES | NO | NO | NO |
| PCMDIST_AEIS (km) | KM (MILES) | PID | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| PCMDIST_BRKOVRD (km) | KM (MILES) | PID | 7 (4.35) | 7 (4.35) | 7 (4.35) | 8.5 (5.28) |
| PCMDTCCNT | NUMERIC VALUE | PID | 0 | 0 | 0 | 0 |
| PCMECT (Deg C) | DEG C (DEG F) | ECT Sensor | 92 (197.6) | 92 (197.6) | 92 (197.6) | 92 (197.6) |
| PCMEQ_RAT11 | RATIO | PID | 0 | 1 | 1.01 | 0.97 |
| PCMEQ_RAT21 | RATIO | PID | 0 | 1 | 1.01 | 0.98 |
| PCMETC_ACT (Deg) | DEG | PID | 7.94 | 4.22 | 9.68 | 15.91 |
| PCMETC_TRIM (Deg) | DEG | PID | 0.24 (E) | 0.24 (E) | 0.24 (E) | 0.24 (E) |
| PCMETC_[TAC_PCT] (%) | % | PID | 9 | 5 | 11 | 19 |
| PCMEVAP020C | YES/NO | PID | NO | NO | NO | NO |
| PCMEVAPCP (%) | % | EVAPCP Valve | 0 | 0 | 2 | 0 |
| PCMEVAPPCT (%) | % | PID | 0 | 0 | 2 | 0 |
| PCMEVAPSOAK | YES/NO | PID | NO | NO | NO | NO |
| PCMEVAPSTA | STATUS | PID | NOT RUNNING | NOT RUNNING | NOT RUNNING | NOT RUNNING |
| PCMFAN_DSD (%) | % | PID | 0 | 0 | 0 | 0 |
| PCMFF_LRND | TRUE/FALSE | PID | FALSE | FALSE | FALSE | FALSE |
| PCMFLI (%) | % | Fuel Level Sensor | 33 (B) | 33 (B) | 36 (B) | 33 (B) |
| PCMFLP (kPa) | kPa (PSI) | Fuel Pressure Sensor | 515 (74.69) | 493 (71.50) | 489 (70.92) | 490 (71.06) |
| PCMFLP_DSD (kPa) | kPa (PSI) | Fuel Pressure Sensor | 498 (72.23) | 477 (69.18) | 477 (69.18) | 477 (69.18) |
| PCMFLP_V (V) | VOLTS | Fuel Pressure Sensor | 2.16 | 2.08 | 2.06 | 2.07 |
| PCMFP (%) | % | Fuel Pump Control Module | 75 | 16 | 17 | 17 |
| PCMFPM (%) | % | PID | 40 | 40 | 41 | 40 |
| PCMFRP (kPa) | kPa (PSI) | FRP Sensor | 24, 720 (3, 585.33) | 17, 310 (2, 510.60) | 19, 780 (2, 868.84) | 7, 700 (1, 116.79) |
| PCMFRP_DSD (kPa) | kPa (PSI) | PID | 330 (47.86) | 5, 510 (799.15) | 19, 960 (2, 894.95) | 7, 520 (1, 090.68) |
| PCMFRP_V (V) | VOLTS | FRP Sensor | 3.96 | 2.93 | 3.29 | 1.61 |
| PCMFRT_A_RAW (Deg C) | DEG C (DEG F) | FRPT Sensor | 46 (114.8) | 46 (114.8) | 48 (118.4) | 48 (118.4) |
| PCMFRT_V (V) | VOLTS | FRT Sensor | 1.66 | 1.65 | 1.56 | 1.55 |
| PCMFTP_V (V) | VOLTS | FTP Sensor | 2.62 | 2.62 | 2.62 | 2.58 |
| PCMFUELSYS_A_PCT_B1 (%) | % | PID | 0 | 0 | 75 | 75 |
| PCMFUELSYS_A_PCT_B2 (%) | % | PID | 0 | 0 | 75 | 75 |
| PCMFUELSYS_B_PCT_B1 (%) | % | PID | 0 | 100 | 25 | 25 |
| PCMFUELSYS_B_PCT_B2 (%) | % | PID | 0 | 100 | 25 | 25 |
| PCMFUELSYS_CL | YES/NO | PID | NO | YES | YES | YES |
| PCMFUELSYS_OL | YES/NO | PID | YES | YES | YES | YES |
| PCMF_VCV_CMD (%) | % | Fuel Injection Pump | 0 | 0 | 29 | 18 |
| PCMHTR11 | ON/OFF | HO2S11 Sensor | OFF | ON | ON | ON |
| PCMHTR12 | ON/OFF | HO2S12 Sensor | OFF | ON | ON | ON |
| PCMHTR21 | ON/OFF | HO2S21 Sensor | OFF | ON | ON | ON |
| PCMHTR22 | ON/OFF | HO2S22 Sensor | OFF | ON | ON | ON |
| PCMHTRCM11 (Amp) | mA | HO2S11 Sensor | 0.00 | 0.00 | 0.00 | 0.00 |
| PCMHTRCM12 (Amp) | mA | HO2S12 Sensor | 0.00 | 0.00 | 0.00 | 0.00 |
| PCMHTRCM21 (Amp) | mA | HO2S21 Sensor | 0.00 | 0.00 | 0.00 | 0.00 |
| PCMHTRCM22 (Amp) | mA | HO2S22 Sensor | 0.00 | 0.00 | 0.00 | 0.00 |
| PCMIAT (Deg C) | DEG C (DEG F) | IAT Sensor | 47 (116.6) | 47 (116.6) | 48 (118.4) | 44 (111.2) |
| PCMIAT11 (Deg C) | DEG C (DEG F) | IAT Sensor | 47 (116.6) | 47 (116.6) | 48 (118.4) | 44 (111.2) |
| PCMIAT1_V (V) | VOLTS | IAT Sensor | 1.48 | 1.50 | 1.47 | 1.61 |
| PCMIGN_SW | ON/OFF | Ignition Switch | ON | ON | ON | ON |
| PCMINJECTOR_OFF | -----/DISABLE | Injector 1-8 | ----- | ----- | ----- | ----- |
| PCMKNOCK_1 | COUNT | KS11 Sensor | 999.00 | 38.00 | 111.00 | 114.00 |
| PCMKNOCK_2 | COUNT | KS12 Sensor | 999.00 | 50.00 | 100.00 | 94.00 |
| PCMKNOCK_3 | COUNT | KS21 Sensor | 999.00 | 40.00 | 105.00 | 110.00 |
| PCMKNOCK_4 | COUNT | KS22 Sensor | 999.00 | 30.00 | 107.00 | 138.00 |
| PCMLOAD (%) | % | PID | 0 (A) | 38 | 62 | 76 |
| PCMLOAD_ABSL (%) | % | PID | 0 (A) | 21 | 31 | 44 |
| PCMLONGFT1 (%) | % | PID | 0.00 (A) | -20 TO +20 | -20 TO +20 | -20 TO +20 |
| PCMLONGFT2 (%) | % | PID | 0.00 (A) | -20 TO +20 | -20 TO +20 | -20 TO +20 |
| PCMMAP (kPa) | kPa (PSI) | MAP Sensor | 98.0 (208.4) | 45.0 (113) | 72.0 (161.6) | 78.0 (172.4) |
| PCMMAP_V (V) | VOLTS | MAP Sensor | 3.92 | 1.74 | 2.83 | 3.16 |
| PCMMIL_DIS (km) | KM (MILES) | PID | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| PCMMIL_OBD | ON/OFF | PID | OFF | OFF | OFF | OFF |
| PCMMISFIRE | TRUE/FALSE | PID | FALSE | FALSE | FALSE | FALSE |
| PCMMP_LRN | TRUE/FALSE | PID | TRUE | TRUE | TRUE | TRUE |
| PCMNUM_MISFIRE | COUNT | PID | 0 | 0 | 10 | 10 |
| PCMO2S11_CUR (mA) | mA/uA | HO2S11 Sensor | (A) | switching (C) | switching (C) | switching (C) |
| PCMO2S11_HTR (%) | % | HO2S11 Sensor | 20 | 39 | 31 | 25 |
| PCMO2S11_IMPED (V) | VOLTS | HO2S11 Sensor | 5.00 | 0.14 | 0.17 | 0.16 |
| PCMO2S11_READY | TRUE/FALSE | HO2S11 Sensor | FALSE | TRUE | TRUE | TRUE |
| PCMO2S12 (V) | VOLTS | HO2S12 Sensor | (A) | switching (D) | switching (D) | switching (D) |
| PCMO2S21_CUR (mA) | mA/uA | HO2S21 Sensor | (A) | switching (C) | switching (C) | switching (C) |
| PCMO2S21_HTR (%) | % | HO2S21 Sensor | 20 | 43 | 31 | 26 |
| PCMO2S21_IMPED (V) | VOLTS | HO2S21 Sensor | 5.00 | 0.14 | 0.17 | 0.16 |
| PCMO2S21_READY | TRUE/FALSE | HO2S21 Sensor | FALSE | TRUE | TRUE | TRUE |
| PCMO2S22 (V) | VOLTS | HO2S22 Sensor | (A) | switching (D) | switching (D) | switching (D) |
| PCMO2_DS_DISBL | TRUE/FALSE | PID | TRUE | TRUE | FALSE | FALSE |
| PCMOCTADJ_R_LRND | % | PID | 0.00 | 0.00 | 0.00 | 0.00 |
| PCMOSS_RAW (Rpm) | RPM | OSS Sensor | 0 | 0 | 1, 080 | 1, 934 |
| PCMRO2FT1 (%) | % | PID | 0.00 | -0.00 | 0.01 | 0.01 |
| PCMRO2FT2 (%) | % | PID | 0.00 | -0.00 | 0.01 | 0.01 |
| PCMRPM (Rpm) | RPM | CKP Sensor | 0 | 678 | 1, 382 | 1, 590 |
| PCMRPM_DSD (Rpm) | RPM | PID | 874 | 655 | 526 | 526 |
| PCMSHRTFT1 (%) | % | PID | (A) | -10 TO +10 | -10 TO +10 | -10 TO +10 |
| PCMSHRTFT2 (%) | % | PID | (A) | -10 TO +10 | -10 TO +10 | -10 TO +10 |
| PCMSPARKADV (Deg) | DEG | PID | -2.00 | -9.00 | 27.00 | 21.00 |
| PCMSYNC | YES/NO | PID | NO | YES | YES | YES |
| PCMTP1_LRN_TRIM (Deg) | DEG | ETBTPS | 8.38 | 8.38 | 8.38 | 8.38 |
| PCMTP1_PER (%) | % | ETBTPS | 16 | 13 | 18 | 22 |
| PCMTP2_LRN_TRIM (Deg) | DEG | ETBTPS | 0.00 | 0.00 | 0.00 | 0.00 |
| PCMTP_REL (%) | VOLTS | PID | 7.5 | 4.3 | 11.0 | 13.7 |
| PCMVCTSYS | ENABLED / DISABLED | PID | DISABLED | ENABLED | ENABLED | ENABLED |
| PCMVCT_EXH_ACT1 (Deg) | DEG | PID | 0.00 | -0.19 | 34.44 | 17.50 |
| PCMVCT_EXH_ACT2 (Deg) | DEG | PID | 0.00 | 0.00 | 34.44 | 22.13 |
| PCMVCT_EXH_DC1 (%) | % | VCT12 Solenoid | 0 | 0 | 52 | 59 |
| PCMVCT_EXH_DC2 (%) | % | VCT22 Solenoid | 0 | 0 | 49 | 58 |
| PCMVCT_EXH_DIF1 (Deg) | DEG | PID | 0.00 | 0.19 | 3.56 | 10.44 |
| PCMVCT_EXH_DIF2 (Deg) | DEG | PID | 0.00 | 0.00 | 2.44 | 8.50 |
| PCMVCT_INT_ACT1 (Deg) | DEG | PID | 0.00 | 0.31 | 8.94 | 9.63 |
| PCMVCT_INT_ACT2 (Deg) | DEG | PID | 0.00 | 0.31 | 8.19 | 9.38 |
| PCMVCT_INT_DC1 (%) | % | VCT11 Solenoid | 0 | 0 | 57 | 60 |
| PCMVCT_INT_DC2 (%) | % | VCT21 Solenoid | 0 | 0 | 59 | 62 |
| PCMVCT_INT_DIF1 (Deg) | DEG | PID | 0.00 | -0.31 | 0.81 | -2.00 |
| PCMVCT_INT_DIF2 (Deg) | DEG | PID | 0.00 | -0.31 | 1.38 | -1.38 |
| PCMVPWR (V) | VOLTS | PID | 12.72 | 14.35 | 13.91 | 14.21 |
| PCMVREF (V) | VOLTS | PID | 5.01 | 5.01 | 5.01 | 5.01 |
| PCMVSS (Kph) | km/h (MPH) | PID | 0 (0) | 0 (0) | 48 km/h (30 MPH) | 89 km/h (55 MPH) |