PCM INSPECTION [L3]

BME014018880W02

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 [L3].)
- Main relay (See RELAY INSPECTION.)

1. Connect the SST (WDS or equivalent) to the DLC-2.

2. Turn the ignition switch to ON position.

3. Measure the PID value.

• If PID value is not within the specification, follow the instructions in Action column.
Note
• The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control.
• For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM terminal voltage.
• The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows.
- ACCS
- ALTF
- ARPMDES
- EVAPCP
- FAN DUTY
- FP
- FUELPW1
- GENVDSD
- HTR11
- HTR12
- IAC
- IMRC
- IMTV
- INJ_1, INJ_2, INJ_3, INJ_4
- SEGRP
- TEST

PID/DATA monitor table (reference)

Monitor item (Definition)

Unit/Condition

Condition/Specification (Reference)

Action

PCM terminal

ACCS (A/C relay)
ON/OFF
Ignition switch ON: OFF
A/C switch ON and fan switch ON at idle: ON
Inspect following PIDs: RPM, TP, ECT, ACSW, TR.
Inspect A/C relay.
4O
ACSW (A/C switch)
ON/OFF
A/C switch and fan switch ON at ignition switch ON: OFF
A/C switch OFF at ignition switch ON: OFF
Inspect A/C switch.
1AC
ALTF (Generator field coil control duty value)
%
Ignition switch ON: 0%
Idle: 0-100%
Just after A/C switch ON and fan switch ON at idle: Duty value rises
Inspect following PIDs: IAT, ECT, RPM, VPWR, ALTT V.
Inspect generator.
1AD
ALTT V (Generator output voltage)
V
Ignition switch ON: 0 V
Idle: Approx. 14.9 V*1 (E/L not operating)
Inspect generator.
1AA
ARPMDES
(Target engine speed)
RPM
No load: 650 rpm
E/L operating: 650 rpm
P/S operating: 700 rpm
A/C ON: 700 rpm
Inspect following PIDs: IAT, RPM, MAP, ECT, MAF, TP, INGEAR, ACSW, TR, PSP, ALTT V.
Inspect IAC valve.
Inspect CKP sensor.
-
AST (After start timer)
Time
-
-
-
BARO
(Barometric pressure)
Pressure
Ignition switch ON (at sea level): approx 101 kPa
Inspect BARO sensor.
1G
V
Ignition switch ON (at sea level): approx 4.1 V
BOO
(Brake switch)
ON/OFF
Brake pedal depressed: ON
Brake pedal released: OFF
Inspect brake switch.
1K
CHRGLMP (Generator warning light)
ON/OFF
Ignition switch ON: ON
Idle: OFF
Perform applicable DTC troubleshooting.
4C
COLP (Refrigerant pressure switch (middle))*4
ON/OFF
Refrigerant pressure switch (middle) ON *2 at idle: ON
Refrigerant pressure switch (middle) OFF*3 at idle: OFF
Inspect refrigerant pressure switch.
1Q
CPP
(Clutch pedal position)
ON/OFF
Clutch pedal depressed: ON
Clutch pedal released: OFF
Inspect clutch switch.
1R
CPP/PNP (Shift lever position)
ON/OFF
Neutral position: ON
Others: OFF
Inspect neutral switch.
1W
DTCCNT (Number of DTC detected)
-
-
Perform applicable DTC troubleshooting.
-
ECT (Engine coolant temperature)
°C
°F
ECT 20 °C {68 °F}: 20 °C {68 °F}
ECT 60 °C {140 °F}: 60 °C {140 °F}
Inspect ECT sensor.
1M
V
ECT 20 °C {68 °F}: 3.04-3.14 V
ECT 60 °C {140 °F}: 1.29-1.39 V
EVAPCP (Purge solenoid valve duty value)
%
Ignition switch ON: 0%
Idle: 0%
Inspect following PIDs: IAT, RPM, ECT, MAF, O2S11,BARO, INGEAR, TR, VPWR.
4U
FAN DUTY
(Fan control duty)
%
ECT below 98 °C {208 °F}: 0%
A/C operating and refrigerant pressure switch (middle) ON: 100%
Inspect following PIDs: RPM, TP, ECT, ACSW, COLP, TEST.
Inspect fan control module.
1U
FDPDTC
(Pending code caused FFD storage)
-
-
Perform applicable DTC troubleshooting.
-
FP (Fuel pump relay)
ON/OFF
Ignition switch ON: OFF
Idle: ON
Cranking: ON
Inspect following PIDs: RPM.
Inspect fuel pump relay.
4Q*4
4P*5
FUELPW (Fuel injector duration)
Time
Ignition switch ON: 0 ms
Idle (after warm up): approx. 2.5 ms
Inspect following PIDs: IAT, MAF, TP, MAP, ECT, RPM, O2S11, O2S12, INGEAR, TR, PSP, ACSW, VPWR, ALTT V.
Inspect fuel injector.
4W, 4Z, 4AA, 4AD
FUELSYS
(Fuel system status)
Open loop/Closed loop
Ignition switch ON: Open loop
Idle (after warm up): Open loop
Inspect following PIDs: IAT, MAF, TP, MAP, ECT, RPM, O2S11, O2S12, INGEAR, TR, PSP, ACSW, VPWR, ALTT V.
Inspect fuel injector.
-
GENVDSD
(Generator voltage desired)
V
Ignition switch ON: 0 V
Idle: Approx. 14.9 V*1 (E/L not operating)
Perform applicable DTC troubleshooting.
-
HTR11
(HO2S heater (front))
ON/OFF
Idle (after warm up): ON⇔OFF
Inspect following PIDs: IAT, MAF, TP, ECT, RPM, ACSW.
4A
HTR12
(HO2S heater (rear))
ON/OFF
Ignition switch ON: ON (HO2S heater operated)
Idle: ON (HO2S heater operated)
Inspect following PIDs: IAT, MAF, ECT, RPM, ACSW.
4D
IAC (IAC valve)
%
Ignition switch ON: 0%
Idle: Approx. 60% (ECT 90°C {194 °F} and E/L not operating)
Inspect following PIDs: IAT, RPM, MAP, ECT, MAF, TP, INGEAR, TR, PSP, ACSW.
Inspect IAC valve.
4G
4J
IAT
(Intake air temperature)
°C
°F
IAT 20 °C {68 °F}: 20 °C {68 °F}
IAT 30 °C {86 °F}: 30 °C {86 °F}
Inspect IAT sensor.
2E
V
IAT 20 °C {68 °F}: 2.4-2.6 V
IAT 30 °C {86 °F}: 1.7-1.9 V
IMRC (Variable tumble control solenoid valve)
ON/OFF
Engine speed is below 3,500 rpm and ECT is below 60 °C {140 °F}: ON
Others: OFF
Inspect following PIDs: RPM.
Inspect VIC control solenoid valve.
4T
IMTV (VIS control solenoid valve)
ON/OFF
Engine speed is below approx. 4,500 rpm: ON
Others: OFF
Inspect following PIDs: RPM.
Inspect VIC control solenoid valve.
4R
INGEAR (Load/no load condition)
ON/OFF
CPP or CPP/PNP is ON: OFF
Others: ON
Perform applicable DTC troubleshooting.
1R, 1W
IVS (CTP condition)
ON/OFF
CTP: ON
Others: OFF
Perform applicable DTC troubleshooting.
2A
KNOCKR (Knocking retard)
Angle
Ignition switch ON: 0 degree
Idle: 0 degree
Inspect knock sensor.
2P, 2S
LOAD (Engine load)
%
Ignition switch ON: 0%
Idle (after warm up): approx.19%
Inspect MAF sensor.
-
LONGFT1 (long term fuel trim)
%
Idle (after warm up): approx.-14-14%
Perform applicable DTC troubleshooting.
-
MAF (Mass airflow)
g/s
Ignition switch ON: approx. 0 g/s
Idle (after warm up): 1.5 g/s
Inspect MAF sensor.
1P
V
Ignition switch ON: approx. 0.7 V
Idle (after warm up): 1.3 V
MAP (Manifold absolute pressure)
Pressure
Ignition switch ON (at sea level): approx 101 kPa {760 mmHg, 14.7 psi}
Inspect MAP sensor.
1J
V
Ignition switch ON (at sea level): approx 4.1 V
MIL (Malfunction indicator lamp)
ON/OFF
Ignition switch ON: ON
Idle: OFF
Perform applicable DTC troubleshooting.
4I
MIL_DIS (Travelled distance since the MIL illuminated)
Distance
No DTC: 0 km {0 mph}
DTC detected: Not 0 km {0 mph}
Perform applicable DTC troubleshooting.
-
O2S11 (Front oxygen sensor)
V
Ignition switch ON: 0-1.0 V
Idle (After warm up): 0-1.0 V
Acceleration (After warm up):
0.5-1.0 V
Deceleration (After warm up):
0-0.5 V
Inspect HO2S (front).
1AB
O2S12 (Rear oxygen sensor)
V
Idle (After warm up): approx 0.6 V
Inspect HO2S (rear).
1Y
PSP (Power steering pressure switch)
ON/OFF
Steering wheel in straight ahead position: OFF
Others: ON
Inspect PSP switch.
1Z
RFCFLAG (Readness function code)
ON/OFF
Before running PCM adaptive memory procedure drive mode: ON
After running PCM adaptive memory procedure drive mode: OFF
Run PCM adaptive memory procedure drive mode.
-
RO2FT1 (Rear oxygen sensor fuel trim)
%
Idle (after warm up): approx.-3-3%
Perform applicable DTC troubleshooting.
-
RPM (Engine speed)
rpm
No load: 600-700 rpm
E/L operating: 600-700 rpm
P/S operating: 650-750 rpm
A/C ON: 650-750rpm
Inspect CKP sensor.
2D, 2G
SEGRP (EGR valve (stepping motor) position)
STEP
Ignition switch ON: 0 step
Idle: 0 step
Cranking: 0-60 steps
Inspect following PIDs: MAF, TP, ECT, RPM, VSS.
Inspect EGR valve.
4E
4H
4K
4N
SHRTFT1 (Short term fuel trim)
%
Idle (after warm up): approx.-30-25%
Perform applicable DTC troubleshooting.
-
SPARKADV (Ignition timing)
BTDC
Ignition switch ON: BTDC 0 degree
Idle: BTDC approx. 10 degree
Inspect following PIDs: MAF, TP, ECT, RPM, INGEAR, TR, PSP, ACSW, VPWR.
Inspect ignition timing.
2J
2M
TEST (TEN terminal (DLC))
ON/OFF
Terminal TEN (DLC) shorted to GND: ON
Terminal TEN (DLC) open: OFF
Inspect wiring from DLC terminal TEN to PCM terminal 1I
1I
TP (TP)
%
CTP: 13-23%
WOT: 86-96%
Inspect TP sensor.
2A
V
CTP: 0.65-1.15 V
WOT: 4.3-4.8 V
TPCT
(TP sensor voltage at CTP)
V
0.65-1.15 V
Inspect TP sensor.
2A
VPWR (Battery positive voltage)
V
Ignition switch ON: B+
Inspect main relay.
Inspect battery.
2Y, 2Z
VSS (Vehicle speed)
km/h
MPH
Vehicle speed 20 km/h {12 mph}:
20 km/h {12 mph}
Vehicle speed 40 km/h {25 mph}:
20 km/h {12 mph}
Perform applicable DTC troubleshooting.
2L

*1 : :
Calculated value; differs from terminal voltage
*2 : :
Refrigerant pressure switch (middle) turns on when the refrigerant pressure is 1.69-1.84 MPa {17.3-18.7 kgf/cm2, 247-265 psi}
*3 : :
Refrigerant pressure switch (middle) turns off when the refrigerant pressure is 1.26-1.49 MPa {12.9-15.1 kgf/cm2, 184-214 psi}
*4 : :
Immobilizer system equipped
*5 : :
Immobilizer system not equipped