DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0444 | PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit open) | An excessively low voltage signal is sent to ECM through the EVAP canister purge volume control solenoid valve. |
P0445 | PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit shorted) | An excessively high voltage signal is sent to ECM through the valve |
POSSIBLE CAUSE
DTC P0444
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.CONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm battery voltage is more than 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected? YES >> Proceed to EC-316, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE GROUND CIRCUIT
Is the inspection result normal? YES-1 >> With CONSULT: GO TO 4.
YES-2 >> Without CONSULT: GO TO 5.
NO >> Repair or replace error-detected parts.
4.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT
Does engine speed vary according to the valve opening? YES >> GO TO 6.
NO >> GO TO 5.
5.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Check the EVAP canister purge volume control solenoid valve. Refer to EC-315, "Component Inspection".
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-14, "Component Parts Location".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
Without CONSULT
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-14, "Component Parts Location".
ECU diagnosis information
EPS CONTROL UNIT
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The output signal indicates the EPS control unit calculation data. The normal
values will be displayed
even in the event that the output circuit (harness) is open.
NOTE:
The following table includes information (items) ...
System description
COMPONENT PARTS
Component Parts Location
No.
Component
Description
1
Push-button ignition
switch1
Push-button ignition switch (push switch) is pressed (ON), and
transmits status signal to BCM
and IPDM E/R.
Ignition switch2
Ignition ...
ECO mode switch (if so equipped)
ECO mode switch
The ECO mode helps to enhance the fuel
economy by controlling the throttle sensitivity and
transmission points.
To turn on the ECO mode, push the ECO mode
switch. The ECO mode indicator light (on the
speedometer) will remain lit while the mode is
active.
To turn off t ...