Specifications

Symptom Reference Value Table

Symptom occurs during	Symptom	Category Number
Start:	No Start/Normal Start	1
	Hard Start/Extended Crank	2
	Stall After Start	3
	Diesel/Runs On	4
Idle:	MIL	5
	Stalls/Stops	6
	Slow	7
	Slow Return	8
	Rough	9
	Fast	10
	Rough	11
	Misfire	12
	Backfire	13
Acceleration:	Stalls/Stops	6
	Misfire	12
	Bucks/Jerks	14
	Backfire	13
	Surge	15
	Lack of/Loss of Power	16
	Hesitation	17
	Spark Knock	18
	Engine Coolant Temperature	19
	Poor Fuel Economy	20
	Emissions Compliance	21
Cruise:	Stalls/Stops	6
	Misfire	12
	Bucks/Jerks	14
	Backfire	13
	Lack of/Loss of Power	16
	Hesitation	17
	Spark Knock	18
	Engine Coolant Temperature	19
	Poor Fuel Economy	20
	Emissions Compliance	21
Deceleration:	Stalls/Stops	6
	Backfire	13

Reference Value Parameter Identification (PID)/Measured Signal Chart

Category Number	Related PIDs/Measured Signals
5, 10, 17	ATP
1, 23	APP1
1, 23	APP2
23	VSS1/VSS2
18, 19	CKP
1, 2, 3, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 20, 21	CMP
1, 2, 3, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 20, 21	CMP
10	TR/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	EGRMC 1 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	EMVV
20	FLI
1 through 21	FP
1 through 21	FPM
1 through 21	FRP
1 through 21	FRT
5	FTP
1 through 21	FUELW1/2
1 through 21	FUEL SYSTEM (OL/CLSD-LP)
19	FPU
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	MMCF
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	TCC
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

Every effort has been made to provide as much information as possible. Some vehicles may not display all inputs and outputs. The typical diagnostic reference values charts do not display the Parameter Identification (PID) for fault conditions. These are PIDs that indicate a serious fault in the circuit. They display a value of FAULT or NO FAULT and are PIDs ending with the letter F. Reference values may vary by up to 20% depending on operating conditions, altitude, and other factors. RPM values depend on the axle and tire. Values are taken at an altitude of approximately 189 meters (620 feet) above sea level with the engine at normal operating temperature and accessories off. For detailed diagnostic procedures, refer to the Repair Manual. Shift signals may be indicated in letter or number form. For example, 1=A, 2=B, 3=C.

• In this case, the value is not useful.
• The value depends on the fuel level in the tank. Typical operating range is 15% (empty) to 90% (full).
• Heated Oxygen Sensors (HO2S) must switch from rich to lean at least once every 3 seconds. The HO2S voltage must switch above and below 0.450 DCV and never be a negative value. Proper HO2S switching occurs only during closed loop fuel control.
• Downstream oxygen sensor voltage remains nearly constant when the catalyst monitor is off (positive value only). When the catalyst monitor is active, 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), the catalyst monitor is more active.
• Normal operating value is -1.5 to 3.5 degrees.

PID	Units/FID	Component Only/PID	Measured/PID Values
			KOEO	Hot Idle	48 km/h	89 km/h
PCM IAT (deg C)	DEG C (DEG F)	IAT Sensor	1 (33,8)	1 (33,8)	1 (33,8)	1 (33,8)
PCM IAT_V (V)	VOLT	IAT Sensor	3,74	3,75	3,84	3.877
PCM AC_REQUEST	YES NO	PID	NO	NO	NO	NO
PCM APP (%)	%	Accelerator Pedal Position Sensor	0	0	11	30
PCM APP1 (V)	VOLT	Accelerator Pedal Position Sensor	0,81	0,81	1,18	1,77
PCM APP1_[APP_D] (%)	%	Accelerator Pedal Position Sensor	16	16	24	35
PCM APP2 (V)	VOLT	Accelerator Pedal Position Sensor	0,41	0,41	0,60	0,89
PCM APP2_[APP_E] (%)	%	Accelerator Pedal Position Sensor	8	8	12	18
PCM APP_MAXDIFF (degrees)	degree	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)	VOLT	PID	4.01	4.01	4.00	3,99
PCM BRKOVRD_POSS (Not Defined / Not Used)	NUMERICAL VALUE	PID	0	0	0	0
PCM BRKOVR_ACTION (Not Defined / Not Used)	NUMERICAL 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)	VOLT	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 CLEAR	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 (Not Defined / Not Used)	NUMERICAL VALUE	PID	0	0	0	0
PCM DTCCNT_OBD (Not Defined / Not Used)	NUMERICAL 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)	VOLT	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)	VOLT	EGRT12 Sensor	2,57	2,61	1,74	1,47
PCM EGRV (V)	VOLT	Exhaust Gas Recirculation Valve	0,53	0,53	1.17	1,27
PCM EGRVPOS (%)	%	PID	0	0	17	19
PCM EGR_A_ACT (%)	%	Exhaust Gas Recirculation Valve	0	0	0	0
PCM EGR_A_CMD (%)	%	PID	0	0	0	0
PCM EQ_RAT11 (Not Defined / Not Used)	RATIO	PID	0,00	1,08	1.01	1.01
PCM ETC ACT (Default)	degree	PID	7,89	7,89	14.18	13.71
PCM ETC_TRIM (degrees)	degree	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	GEAR POSITION	PID	DO NOT RUN	DO NOT RUN	DO NOT RUN	DO NOT RUN
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)	VOLT	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 GFU	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 (Amps)	mA	HO2S11 Sensor	0,00	0,00	0,00	0,00
PCM HTRCM12 (Amps)	mA	HO2S12 Sensor	0,00	0,00	0,00	0,00
PCM IAT (deg C)	DEG C (DEG F)	Intake Air Temperature Sensor	32 (89,6)	32 (89,6)	17 (62,6)	18 (64,4)
PCM INJECTOR_OFF	-----/INHIBIT	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 (Not Determined / Not Used)	READ	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)	VOLT	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 (Not Determined / Not Used)	READ	PID	0	0	4	4
PCM O2S11_CUR (mA)	mA/µA	HO2S11 Sensor	(A)	Switching (C)	Switching (C)	Switching (C)
PCM O2S11_HTR (%)	%	HO2S11 Sensor	20	20	21	27
PCM O2S11_IMPED (V)	VOLT	HO2S11 Sensor	5.00	0,19	0,18	0,19
PCM O2S11_READY	TRUE/FALSE	HO2S11 Sensor	FALSE	TRUE	TRUE	TRUE
PCM O2S12 (V)	VOLT	HO2S12 Sensor	(A)	Switching (D)	Switching (D)	Switching (D)
PCM O2_DS_DISBL	TRUE/FALSE	PID	TRUE	TRUE	TRUE	FALSE
PCM OCTADJ_R_LRND (Not Determined / Not Used)	%	PID	0	0	0	0
PCM RO2FT1 (%)	%	PID	0,00	0,00	0,00	0,02
PCM RPM (rpm)	RPM	Crankshaft Position (CKP) sensor	0	0	1734	2022
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 (degrees)	degree	PID	-15.00	-15.00	16.50	35.50
PCM SYNC	YES NO	PID	NO	YES	YES	YES
PCM TP1_LRN_TRIM (degrees)	degree	ETBTPS	15.38	15.38	15.38	15.38
PCM TP1_PER (%)	%	ETBTPS	23	23	28	29
PCM TP1_V (V)	VOLT	ETBTPS	4.09	4.09	3,87	3,83
PCM TP2_LRN_TRIM (degrees)	degree	ETBTPS	7,88	7,88	7,88	7,88
PCM TP2_PER (%)	%	ETBTPS	24	24	33	35
PCM TP2_V (V)	VOLT	ETBTPS	1,23	1,23	1,67	1,74
PCM TP_MAXDIFF (degrees)	%	PID	0,00	0,00	0,00	0,00
PCM TP_REL (%)	VOLT	PID	7	7	13	14
PCM VCTSYS	ENABLED/DISABLED	PID	INCOMPLETE	INCOMPLETE	ENABLED	ENABLED
PCM VCT_INT_ACT1 (degrees)	degree	PID	0,00	0,00	-44,94	-33,44
PCM VCT_INT_DC1 (%)	%	VCT11 Solenoid	0	0	35	35
PCM VCT_INT_DIF1 (degrees)	degree	PID	0,00	0,00	0,00	0,38
PCM VPWR (V)	VOLT	PID	VBAT	VBAT	VBAT	VBAT
PCM VREF (V)	VOLT	PID	5	5	5	5
PCM VSS (km/h)	km/h (mph)	PID	0 (0)	0 (0)	48 km/h	89 km/h