PCM INSPECTION [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed))


BME014018880W01

Caution
• The PCM terminal voltages vary with measuring conditions and vehicle conditions. Always carry out a total inspection of the input systems, output systems, and PCM to determine the cause of trouble. Otherwise, diagnosis will be incorrect.

PCM Inspection Using the SST (WDS or equivalent)

Note
• PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.
- CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed)).)
- Main relay (See RELAY INSPECTION.)

1. Connect the WDS or equivalent to the DLC-2. (See ON-BOARD DIAGNOSTIC TEST [AJ].)

2. Turn the ignition switch to ON.

3. Measure the value.

• If the value is not within the specification, follow the instructions in Action column.

PID/DATA MONITOR table (Reference)

Parameter Name

Unit/

Condition

Condition/Specification (Reference)

Inspection item

PCM terminal

AC_REQ (A/C switch)
On/Off
A/C and fan operating: On
A/C not operating: Off
The following PIDs: RPM, TP, ECT
5
ACCS (A/C relay)
On/Off
A/C operating: On
IG SW ON: Off
The following PIDs: RPM, TP, ECT
47
ALTF (Generator field coil control duty value)
%
IG SW ON: 0%
Idle: 0-100%
Generator operating → E/L ON: Duty value rises
The following PIDs: IAT, RPM, ALTT V
36
ALTT V (Generator output voltage)
V
IG SW ON: 0 V
Idle: 14-16 V
The following PIDs: IAT, RPM, ALTF
Generator
63
ARPMDES (Target engine speed)
RPM
Idle: Indicate the target engine speed
Perform "ON-BOARD DIAGNOSTIC TEST"
-
B+ (Battery positive voltage)
V
IG SW ON: B+
Battery
86
BARO (Barometric pressure)
Pa
IG SW ON: Indicate the barometric pressure
EGR boost sensor
37
V
Less than 400 m {1.13 ft} above sea level: 4.1-4.3 V
BARO/EGR (EGR boost sensor solenoid valve)
On/Off
Ignition switch ON: Off
Idle: Off
EGR boost sensor solenoid valve
93
BOO (Brake switch)
On/Off
Brake pedal depressed: On
Brake pedal released: Off
Brake switch
82
CATT11_DSD (Estimated catalytic converter temperature)
°C or °F
Indicate the estimated catalytic converter temperature
The following PIDs: BARO, ECT, IAT, MAF, RPM
-
CATT21_DSD (Estimated catalytic converter temperature)
°C or °F
Indicate the estimated catalytic converter temperature
The following PIDs: BARO, ECT, IAT, MAF, RPM
-
CHRGLP (Generator warning light)
On/Off
IG SW ON: On
Idle: Off
Generator warning light
65
COLP (Refrigerant pressure switch (medium pressure switch))
On/Off
Refrigerant pressure is the threshold or more: On
Refrigerant pressure is the threshold or less: Off
Refrigerant pressure switch (medium pressure switch)
30
DTCCNT (Number of DTC detected)
-
Number of DTCs stored
Normal: 0
Perform applicable DTC troubleshooting.
-
ECT (Engine coolant temperature)
°C or °F
IG SW ON: Indicate the engine coolant temperature
ECT sensor
41
V
ECT 20 °C {68 °F}: 2.9-3.1 V
After warm up: 0.2-1.0 V
EQ_RAT11_DSD (Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio)
-
Idling after warm-up: Approx.1
HO2S (Front, LH/RH)
-
EVAPCP (Purge solenoid valve duty value)
%
IG SW ON: 0%
The following PIDs: IAT, RPM, ECT, MAF, TP, BARO, O2S11, O2S21
85
FAN_DUTY (Fan control signal)
%
ECT below 100 °C {212 °F}: 0%
ECT above 100 °C {212 °F}: 35-100%
Inspect ECT sensor
69
FP (Fuel pump relay)
On/Off
IG SW ON: Off
Idle: On
Cranking: On
The following PID: RPM
95*1, 67*2
FUELPW (Fuel injection duration)
s
IG SW ON: 0 ms
Idle: 1.5-3.0 ms
PIDs for input signals
48, 49, 50, 74, 75, 76
FUELSYS1 (Fuel system status (RH))
OL / CL / OL_Drive / OL_Fault / CL_Fault
Idling after warm-up: CL
The following PID: MAF, IAT, ECT, RPM, TP, O2S11, O2S12, O2S21, O2S22, BARO, VSS, PSP, ALTF, ACCS, IMCC, BOO, B+
-
FUELSYS 2 (Fuel system status (RH))
OL / CL / OL_Drive / OL_Fault / CL_Fault
Idling after warm-up: CL
The following PID: MAF, IAT, ECT, RPM, TP, O2S11, O2S12, O2S21, O2S22, BARO, VSS, PSP, ALTF, ACCS, IMCC, BOO, B+
-
GENVDSD (Target generator voltage)
V
Ignition switch is turned to the On position: Approx. 1.0 V or less Idling (no electrical load): Approx.14 V (This is an internal calculation value and differs from the terminal voltage.)
The following PIDs: ECT, IAT, RPM, VSS, ALTT V, VPWR Generator
-
HTR11 (HO2S heater (Front, RH))
On/Off
Ignition switch ON (engine stopped): Off
Specified period after engine start with ECT 0-40 °C {32-104 °F}: On
Others alternate: On and Off
The following PIDs: ECT, MAF
83
HTR12 (HO2S heater (Rear, RH))*3
On/Off
Idle: On
RHO2S heater malfunctioning: Off
The following PIDs: ECT, MAF
57
HTR21 (HO2S heater (Front, LH))
On/Off
Ignition switch ON (engine stopped): Off
Specified period after engine start with ECT 0-40 °C {32-104 °F}: On
Others alternate: On and Off
The following PIDs: ECT, MAF
84
HTR22 (HO2S heater (Rear, LH))*3
On/Off
Idle: On
RHO2S heater malfunctioning: Off
The following PIDs: ECT, MAF
58
IAC (IAC valve)
%
IG SW ON: 0%
Idle: 25-40%
The following PIDs: IAT, RPM, ECT, MAF, TP, PSP, TEST
88
IAT (Intake air temperature)
°C or °F
IG SW ON: Indicate the intake air temperature
IAT sensor
15
V
IAT 20 °C {68 °F}: 2.3-2.5 V
IAT 30 °C {86 °F}: 1.8-2.0 V
IMCC (IMCC actuator)
%
Idle: 0%
Engine speed above 3,750-5,560 rpm: 100% → 50%
The following PID: RPM
97
INGEAR (Gears are engaged.)
On/Off
P or N position: Off
Others: On
TR switch
-
IVS (CTP condition)
Idle / Off Idle
Idling: Idle
Other than idling: Off Idle
The following PIDs: TP
40
KNOCKR (Spark retard value to prevent knocking)
°(DEG)
Idle: 0 °
PIDs for input signals
3, 81
LOAD (Calculated engine load)
%
Idle: 18-20%
Engine speed at 2,500 rpm: 17-19%
Perform "ON-BOARD DIAGNOSTIC TEST"
-
LONGFT1 (Current long fuel trim (RH) adjustment)
%
Idle: -20-20%
Perform "ON-BOARD DIAGNOSTIC TEST"
-
LONGFT2 (Current long fuel trim (LH) adjustment)
%
Idle: -20-20%
Perform "ON-BOARD DIAGNOSTIC TEST"
-
MAF (Intake airflow amount)
g/s
Idle:3.3-4.7 g/s
Engine speed at 2,500 rpm: 12.1-15.0 g/s
MAF sensor
11
V
IG SW ON: 0.0-0.1 V
Idle: 0.5-0.8 V
MIL (Malfunction indicator light)
On/Off
IG SW ON: On
DTC output: On
No DTC output: Off
MIL
68
MIL_DIS (Travelled distance since MIL illuminate)
km or mi
Indicate the travelled distance since MIL illuminate
Normal: 0 km {0 mi}
The following PIDs: DTCCNT, MIL
Perform applicable DTC troubleshooting.
-
O2S11 (HO2S (Front, RH))
V
IG SW ON: 0-1.0 V
Idle (After warm up): 0-1.0 V
Acceleration: 0.5-1.0 V
Deceleration: 0-0.5 V
HO2S (Front, RH)
18
O2S12 (HO2S (Rear, RH))*3
V
IG SW ON: 0-1.0 V
Idle (After warm up): 0-1.0 V
Acceleration: 0.5-1.0 V
Deceleration: 0-0.5 V
HO2S (Rear, RH)
44
O2S21 (HO2S (Front, LH))
V
IG SW ON: 0-1.0 V
After warm up: 0-1.0 V
Acceleration: 0.5-1.0 V
Deceleration: 0-0.5 V
HO2S (Front, LH)
19
O2S22 (HO2S (Rear, LH))*3
V
IG SW ON: 0-1.0 V
After warms up: 0-1.0 V
Acceleration: 0.5-1.0 V
Deceleration: 0-0.5 V
HO2S (Rear, LH)
45
PSP (PSP switch)
High/Low
Steering wheel at straight ahead position: Low
Steering wheel fully turned: High
PSP switch
55
RFCFLAG (Readiness Function Code)
Learnt/Not Learnt
Idling (after running PCM adaptive memory procedure drive mode): Learnt
Right after the negative battery cable is disconnected (before running PCM adaptive memory procedure drive mode): Not Learnt
Perform DRIVE MODE 1
-
RO2FT1 (HO2S (Rear, RH) fuel trim)*3
-
Indicate the HO2S (Rear, RH) fuel trim
The following PID: O2S12
-
RO2FT2 (HO2S (Rear, LH) fuel trim)*3
-
Indicate the HO2S (Rear, LH) fuel trim
The following PID: O2S12
-
RPM (Engine speed)
RPM
Idle: Indicate the engine speed
CKP sensor
27, 1
SEGRP (EGR valve (stepping motor) position)
-
IG SW ON: 0 (step)
Idle: 0 (step)
Cranking: 0-60 (steps)
The following PIDs: ECT, TP
98, 72, 73, 99
SEGRP DSD (EGR valve position desired)
%
EGR not operating: 0%
EGR operating: 0-100%
The following PID - MAF, TP, ECT, RPM, VSS
-
SHRTFT1 (Short term fuel trim (RH))
%
Idle: -20-20%
Perform "ON-BOARD DIAGNOSTIC TEST"
-
SHRTFT11 (Short term fuel trim (Front, RH))
%
Indicate the short term fuel trim (Front, RH)
Perform "ON-BOARD DIAGNOSTIC TEST"
18
SHRTFT12 (Short term fuel trim (Rear, RH))*3
%
Indicate the short term fuel trim (Front, LH)
Perform "ON-BOARD DIAGNOSTIC TEST"
44
SHRTFT2 (Short term fuel trim (LH))
%
Idle: -20-20%
Perform "ON-BOARD DIAGNOSTIC TEST"
-
SHRTFT21 (Short term fuel trim (Front, LH))
%
Indicate the short term fuel trim (Rear, RH)
Perform "ON-BOARD DIAGNOSTIC TEST"
19
SHRTFT22 (Short term fuel trim (Rear, LH))*3
%
Indicate the short term fuel trim (Rear, LH)
Perform "ON-BOARD DIAGNOSTIC TEST"
45
SPARKADV (Ignition timing)
°(BTDC)
Indicate the ignition timing
The following PIDs: MAF V, IAT V, RPM, TP V, ECT V, PSP SW, NL SW, CLT SW, A/C SW, TEN, CMP
Perform Engine tune-up.
52 for #1
104 for #2
102 for #3
78 for #4
103 for #5
101 for #6
test (Test mode)
On/Off
During test mode: On
Other than test mode: Off
-
-
TIRESIZE (Tire revolution per mile)
-
Indicate the tire revolution per mile
-
-
TP (TP sensor signal voltage)
V
CTP: 0.7-1.2 V
WOT: 4.15-4.8 V
TP sensor
40
TP REL (Throttle position signal (relative value))
%
CTP: Approx. 0%
WOT: Approx. 100%
TP sensor
40
TP1 (Throttle position)
%
Indicate the throttle position
TP sensor
40
TPCT (TP sensor voltage at CTP)
V
CTP: 0.7-1.2 V
TP sensor
-
VSS (Vehicle speed)
KPH or MPH
Vehicle running: Indicate the vehicle speed
Inspect VSS
79

*1 :
Immobilizer system equipped
*2 :
Immobilizer system not equipped
*3 :
With HO2S (Rear)

Freeze Frame Data Monitor Table

Note
• FFD is a snapshot of the conditions that are present when DTC or PENDING CODE is stored. Once FFD is stored, this data will remain in PCM memory even if another emission related DTC or PENDING CODE is stored additionally, except for Misfire or Fuel System related DTC or PENDING CODE. Once Misfire or Fuel System related DTC or PENDING CODE is stored, it will overwrite any previous data and the FFD will not be further overwritten. When DTC associated with the FFD is erased or PCM is reset, new FFD can be stored.

Full names

Unit

DTC that caused required Freeze Frame Data storage
No unit
Fuel system loop status
Refer to list below.
LOAD
%
ECT
°C
°F
Short term fuel trim (RH, LH)
%
Long term fuel trim (RH, LH)
%
Engine speed
rpm
Vehicle speed
km/h
mph
Spark advance
° (BTDC)
IAT
°C
°F
MAF
g/s
Absolute TP
%
Time since engine start
s
EGR valve control signal
%
Purge solenoid valve control signal
%
Number of warm-ups since DTCs cleared
No unit
Distance travelled since DTCs cleared
km
miles
BARO
kPa
Estimated catalyst converter temperature (RH, LH)
°C
°F
PCM voltage
V
Absolute load value
%
Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio
No unit
Relative TP
%