engine control system NISSAN TIIDA 2009 Service Repair Manual
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Page 2708 of 4331
![NISSAN TIIDA 2009 Service Repair Manual EC-1352< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0452 EVAP CONTROL
SYSTEM PRESSURE SENSOR
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF an NISSAN TIIDA 2009 Service Repair Manual EC-1352< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0452 EVAP CONTROL
SYSTEM PRESSURE SENSOR
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF an](/img/5/57398/w960_57398-2707.png)
EC-1352< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0452 EVAP CONTROL
SYSTEM PRESSURE SENSOR
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-III.
5. Make sure that “FUEL T/TMP SE” is more than 0 °C (32 °F).
6. Start engine and wait at least 20 seconds.
7. Check 1st trip DTC.
8. If 1st trip DTC is detected, go to EC-1354, " Diagnosis Procedure " .
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Check that voltage between ECM terminal 43 (Fuel tank temper-
ature sensor signal) and ground is less than 4.2V.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and wait at least 20 seconds.
5. Select Service $07 with GST. If 1st trip DTC is detected, go to EC-1354, " Diagnosis Proce-
dure " .
SEF113U
Page 2710 of 4331
![NISSAN TIIDA 2009 Service Repair Manual EC-1354< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0452 EVAP CONTROL
SYSTEM PRESSURE SENSOR
Diagnosis Procedure INFOID:00000000045002191.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen a NISSAN TIIDA 2009 Service Repair Manual EC-1354< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0452 EVAP CONTROL
SYSTEM PRESSURE SENSOR
Diagnosis Procedure INFOID:00000000045002191.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen a](/img/5/57398/w960_57398-2709.png)
EC-1354< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0452 EVAP CONTROL
SYSTEM PRESSURE SENSOR
Diagnosis Procedure INFOID:00000000045002191.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body.
Refer to EC-1144, " Ground Inspection " .
OK or NG OK >> GO TO 2.
NG >> Repair or replace ground connections. 2.
CHECK CONNECTOR
TER-
MI-
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NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
42 V EVAP control system pres-
sure sensor [Ignition switch: ON]
Approximately 1.8 - 4.8V
51 O Sensor ground
(EVAP control system pres-
sure sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
74 W Sensor power supply
(Refrigerant pressure
sensor) [Ignition switch: ON]
Approximately 5V
75 BR Sensor power supply
[Crankshaft position sensor
(POS)] [Ignition switch: ON]
Approximately 5V
76 W EVAP control system pres-
sure sensor power supply [Ignition switch: ON]
Approximately 5V
102 SB Sensor power supply
(Accelerator pedal position
sensor 2) [Ignition switch: ON]
Approximately 5V:
Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15 BBIA0698E
Page 2715 of 4331
![NISSAN TIIDA 2009 Service Repair Manual DTC P0453 EVAP CONTROL
SYSTEM PRESSURE SENSOR
EC-1359
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DTC Confirmation Procedure
INFOID:0000000004500224
NOTE:
If DTC Confirmation NISSAN TIIDA 2009 Service Repair Manual DTC P0453 EVAP CONTROL
SYSTEM PRESSURE SENSOR
EC-1359
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DTC Confirmation Procedure
INFOID:0000000004500224
NOTE:
If DTC Confirmation](/img/5/57398/w960_57398-2714.png)
DTC P0453 EVAP CONTROL
SYSTEM PRESSURE SENSOR
EC-1359
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DTC Confirmation Procedure
INFOID:0000000004500224
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Always perform test at a temperature of 5 °C (41 °F) or more.
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-III.
5. Make sure that “FUEL T/TMP SE” is more than 0 °C (32 °F).
6. Wait at least 10 seconds.
7. Check 1st trip DTC.
8. If 1st trip DTC is detected, go to EC-1361, " Diagnosis Procedure " .
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Check that voltage between ECM terminal 43 (Fuel tank temper- ature sensor signal) and ground is less than 4.2V.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Wait at least 10 seconds.
5. Select Service $07 with GST.
If 1st trip DTC is detected, go to EC-1361, " Diagnosis Proce-
dure " .
SEF113U
Page 2717 of 4331
![NISSAN TIIDA 2009 Service Repair Manual DTC P0453 EVAP CONTROL
SYSTEM PRESSURE SENSOR
EC-1361
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Diagnosis Procedure
INFOID:00000000045002261.
CHECK GROUND CONNECTIONS
1. Turn NISSAN TIIDA 2009 Service Repair Manual DTC P0453 EVAP CONTROL
SYSTEM PRESSURE SENSOR
EC-1361
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Diagnosis Procedure
INFOID:00000000045002261.
CHECK GROUND CONNECTIONS
1. Turn](/img/5/57398/w960_57398-2716.png)
DTC P0453 EVAP CONTROL
SYSTEM PRESSURE SENSOR
EC-1361
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Diagnosis Procedure
INFOID:00000000045002261.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body.
Refer to EC-1144, " Ground Inspection " .
OK or NG OK >> GO TO 2.
NG >> Repair or replace ground connections. 2.
CHECK CONNECTOR
TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
42 V EVAP control system pres-
sure sensor [Ignition switch: ON]
Approximately 1.8 - 4.8V
51 O Sensor ground
(EVAP control system pres-
sure sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
74 W Sensor power supply
(Refrigerant pressure
sensor) [Ignition switch: ON]
Approximately 5V
75 BR Sensor power supply
[Crankshaft position sensor
(POS)] [Ignition switch: ON]
Approximately 5V
76 W EVAP control system pres-
sure sensor power supply [Ignition switch: ON]
Approximately 5V
102 SB Sensor power supply
(Accelerator pedal position
sensor 2) [Ignition switch: ON]
Approximately 5V:
Vehicle front
1. Engine ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15 BBIA0698E
Page 2723 of 4331
![NISSAN TIIDA 2009 Service Repair Manual DTC P0455 EVAP CONTROL SYSTEM
EC-1367
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NOTE:
• Make sure that EVAP hose are connected to EVAP canister purge volume cont NISSAN TIIDA 2009 Service Repair Manual DTC P0455 EVAP CONTROL SYSTEM
EC-1367
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NOTE:
• Make sure that EVAP hose are connected to EVAP canister purge volume cont](/img/5/57398/w960_57398-2722.png)
DTC P0455 EVAP CONTROL SYSTEM
EC-1367
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NOTE:
• Make sure that EVAP hose are connected to EVAP canister purge volume control solenoid valve
properly.
• If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
• Perform “DTC WORK SUPPORT” when the fuel level is between 1/4 and 3/4 full, and vehicle is placed
on flat level surface.
• Open engine hood before conducting the following procedure.
WITH CONSULT-III
1. Tighten fuel filler cap securely until reteaching sound is heard.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
5. Make sure that the following conditions are met. COOLAN TEMP/S: 0 - 70 °C (32 - 158 °F)
INT/A TEMP SE: 0 - 60 °C (32 - 140 °F)
6. Select “EVAP SML LEAK P0442/P1442” of “EVAPORA TIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-III.
Follow the instruction displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-III screen, go to
EC-1078, " Basic Inspection " .
7. Make sure that “OK” is displayed. If “NG” is displayed, select “SELF-DIAG RESULT S” mode with CONSULT-III and make sure that “EVAP
GROSS LEAK [P0455]” is displayed. If it is displayed, refer to EC-1367, " Diagnosis Procedure " .
If P0442 is displayed, perform Diagnostic Procedure for DTC P0442, EC-1316, " Diagnosis Procedure " .
WITH GST
NOTE:
Be sure to read the explanation of Driving Pattern on EC-1052, " Emission-related Diagnostic Information "
before driving vehicle.
1. Start engine.
2. Drive vehicle according to Driving Pattern, EC-1052, " Emission-related Diagnostic Information " .
3. Stop vehicle.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ignition switch ON.
5. Select Service $07 with GST.
• If P0441 is displayed on the screen, go to EC-1311, " Diagnosis Procedure " for DTC P0441.
• If P0442 is displayed on the screen, go to EC-1316, " Diagnosis Procedure " for DTC P0442.
• If P0455 is displayed on the screen, go to EC-1367, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:00000000045002301.
CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
OK or NG OK >> GO TO 2.
NG >> Replace with genuine NISSAN fuel filler cap. 2.
CHECK FUEL FILLER CAP INSTALLATION SEF915U
Page 2726 of 4331
![NISSAN TIIDA 2009 Service Repair Manual EC-1370< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0455 EVAP CONTROL SYSTEM
2. Apply 12 volts DC to EVAP canister vent control valve (3). The valve will close. (Continue to appl y 12 volts unti NISSAN TIIDA 2009 Service Repair Manual EC-1370< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0455 EVAP CONTROL SYSTEM
2. Apply 12 volts DC to EVAP canister vent control valve (3). The valve will close. (Continue to appl y 12 volts unti](/img/5/57398/w960_57398-2725.png)
EC-1370< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0455 EVAP CONTROL SYSTEM
2. Apply 12 volts DC to EVAP canister vent control valve (3). The valve will close. (Continue to appl y 12 volts until the end of test.)
- EVAP control system pressure sensor (1)
- EVAP canister (2)
3. Pressurize the EVAP line using pressure pump with 1.3 to 2.7 kPa (10 to 20 mmHg, 0.39 to 0.79 inHg),
then remove pump and EVAP service port adapter.
CAUTION:
• Never use compressed air or a high pressure pump.
• Do not exceed 4.12 kPa (0.042 kg/cm 2
, 0.6 psi) of pressure in the system.
4. Using EVAP leak detector, locate the EVAP leak. For the leak detector, refer to the instruction manual for more details.
Refer to EC-1036, " Description " .
OK or NG OK >> GO TO 13.
NG >> Repair or replace. 12.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
2. Start engine.
3. Perform “PURG VOL CONT/V ” in “ACTIVE TEST” mode.
4. Touch “Qu” on CONSULT-III screen to increase “PURG VOL CONT/V” opening to 100%.
5. Check vacuum hose for vacuum.
OK or NG OK >> GO TO 15.
NG >> GO TO 14. 13.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
4. Start engine and let it idle for at least 80 seconds.
5. Check vacuum hose for vacuum when revving engine up to 2,000 rpm.
OK or NG OK >> GO TO 16.
NG >> GO TO 14. 14.
CHECK VACUUM HOSE BBIA0693E
SEF200U
Vacuum should exist.
Vacuum should exist.
Page 2730 of 4331
![NISSAN TIIDA 2009 Service Repair Manual EC-1374< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
DTC Confirmation Procedure INFOID:0000000004500232
NOTE:
• If DTC P0456 is displayed with P0442, firs t perform trouble diagno NISSAN TIIDA 2009 Service Repair Manual EC-1374< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
DTC Confirmation Procedure INFOID:0000000004500232
NOTE:
• If DTC P0456 is displayed with P0442, firs t perform trouble diagno](/img/5/57398/w960_57398-2729.png)
EC-1374< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
DTC Confirmation Procedure INFOID:0000000004500232
NOTE:
• If DTC P0456 is displayed with P0442, firs t perform trouble diagnosis for DTC P0456.
• After repair, make sure that the hoses and clips are installed properly.
• If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
• Open engine hood before conducting following procedure.
• If any of following conditions are met just befo re the DTC confirmation procedure, leave the vehicle
for more than 1 hour.
- Fuel filler cap is removed.
- Refilled or drained the fuel.
- EVAP component parts is/are removed.
• Before performing the following procedure, confirm that battery voltage is more than 11V at idle.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Make sure the following conditions are met.
FUEL LEVEL SE: 0.25 - 1.4V
COOLAN TEMP/S: 0 - 32 °C (32 - 90 °F)
FUEL T/TMP SE: 0 - 35 °C (32 - 95 °F)
INT/A TEMP SE: More than 0 °C (32 °F)
If NG, turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle) or refilling/draining
fuel until the output voltage condition of the “FUE L LEVEL SE” meets within the range above and leave
the vehicle for more than 1 hour. Then start from step 1).
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Select “EVAP V/S LEAK P0456” of “EVAPORATI VE SYSTEM” in “DTC WORK SUPPORT” mode with
CONSULT-III.
Follow the instruction displayed.
6. Make sure that “OK” is displayed.
If “NG” is displayed, refer to EC-1375, " Diagnosis Procedure " .
NOTE:
• If the engine speed cannot be maintained with in the range displayed on CONSULT-III screen, go
to EC-1078, " Basic Inspection " .
• Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid
valve properly.
Overall Function Check INFOID:0000000004500233
WITH GST
Use this procedure to check the overall function of the EV AP very small leak function. During this check, a 1st
trip DTC might not be confirmed.
CAUTION:
• Never use compressed air, doing so may damage the EVAP system.
• Do not start engine.
• Do not exceeded 4.12 kPa (0.042 kg/cm 2
, 0.6 psi).
1. Attach the EVAP service port adapter securely to the EVAP ser- vice port (2).
- EVAP canister purge volume control solenoid valve (1)
- : Vehicle front BBIA0703E
Page 2731 of 4331
![NISSAN TIIDA 2009 Service Repair Manual DTC P0456 EVAP CONTROL SYSTEM
EC-1375
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2. Set the pressure pump and a hose.
3. Also set the pressure pump with pressure gauge NISSAN TIIDA 2009 Service Repair Manual DTC P0456 EVAP CONTROL SYSTEM
EC-1375
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2. Set the pressure pump and a hose.
3. Also set the pressure pump with pressure gauge](/img/5/57398/w960_57398-2730.png)
DTC P0456 EVAP CONTROL SYSTEM
EC-1375
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2. Set the pressure pump and a hose.
3. Also set the pressure pump with pressure gauge to the EVAP service port adapter.
4. Turn ignition switch ON.
5. Connect GST and select Service $08.
6. Using Service $08 control the EVAP canister vent control valve
(close).
7. Apply pressure and make sure the following conditions are sat- isfied.
Pressure to be applied: 2.7 kPa (20 mmHg, 0.79 inHg)
Time to be waited after the pressure drawn in to the EVAP
system and the pressure to be dropped: 60 seconds and
the pressure should not be dropped more than 0.4 kPa (3 mmHg, 0.12 inHg).
If NG, go to EC-1375, " Diagnosis Procedure " .
If OK, go to next step.
8. Disconnect GST.
9. Start engine and warm it up to normal operating temperature.
10. Turn ignition switch OFF and wait at least 10 seconds.
11. Restart engine and let it idle for 90 seconds.
12. Keep engine speed at 2,000 rpm for 30 seconds.
13. Turn ignition switch OFF. NOTE:
For more information, refe r to GST Instruction Manual.
Diagnosis Procedure INFOID:00000000045002341.
CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
OK or NG OK >> GO TO 2.
NG >> Replace with genuine NISSAN fuel filler cap. 2.
CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
OK or NG OK >> GO TO 3.
NG >> 1. Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. 2. Retighten until reteaching sound is heard. 3.
CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
OK or NG OK >> GO TO 5.
NG >> GO TO 4. 4.
CHECK FUEL TANK VACUUM RELIEF VALVE
Refer to EC-1038, " Component Inspection " .
OK or NG OK >> GO TO 5.
NG >> Replace fuel filler cap with a genuine one. SEF462UI
SEF915U
Page 2734 of 4331
![NISSAN TIIDA 2009 Service Repair Manual EC-1378< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
2. Does water drain from the EVAP canister?
Yes or No Yes >> GO TO 11.
No (With CONSULT-III)>>GO TO 13.
No (Without CONSULT- NISSAN TIIDA 2009 Service Repair Manual EC-1378< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
2. Does water drain from the EVAP canister?
Yes or No Yes >> GO TO 11.
No (With CONSULT-III)>>GO TO 13.
No (Without CONSULT-](/img/5/57398/w960_57398-2733.png)
EC-1378< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
2. Does water drain from the EVAP canister?
Yes or No Yes >> GO TO 11.
No (With CONSULT-III)>>GO TO 13.
No (Without CONSULT-III)>>GO TO 14. 11.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 1.9 kg (4.2 lb).
OK or NG OK (With CONSULT-III)>>GO TO 13.
OK (Without CONSULT-III)>>GO TO 14.
NG >> GO TO 12. 12.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehicle frame for clogging or poor connection
>> Repair hose or replace EVAP canister. 13.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
2. Start engine.
3. Perform “PURG VOL CONT/V ” in “ACTIVE TEST” mode.
4. Touch “Qu” on CONSULT-III screen to increase “PURG VOL CONT/V” opening to 100%.
5. Check vacuum hose for vacuum.
OK or NG OK >> GO TO 16.
NG >> GO TO 15. 14.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
4. Start engine and let it idle for at least 80 seconds.
5. Check vacuum hose for vacuum when revving engine up to 2,000 rpm.
OK or NG OK >> GO TO 17.
NG >> GO TO 15. 15.
CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to EC-1106, " Vacuum Hose Drawing " .
OK or NG PBIB1213E
Vacuum should exist.
Vacuum should exist.
Page 2745 of 4331

EC
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DTC P0506 ISC SYSTEM
Description INFOID:0000000004500255
NOTE:
If DTC P0506 is displayed with ot her DTC, first perform the trouble diagnosis for the other DTC.
The ECM controls the engine idle speed to a specified leve l through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine id ling speed. The ECM calculates the actual engine speed
from signals of crankshaft position sensor (POS) and camshaft position sensor (PHASE).
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is t he lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.).
On Board Diagnosis Logic INFOID:0000000004500256
DTC Confirmation Procedure INFOID:0000000004500257
NOTE:
• If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
• If the target idle speed is out of the specified value, perform EC-1084, " Idle Air Volume Learning " ,
before conducting DTC Confirmation Procedure. For the target idle speed, refer to the EC-1534 .
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is more than 11V at idle.
• Always perform the test at a temperature above −10 °C (14 °F).
1. Open engine hood.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and run it for at least 1 minute at idle speed.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-1389, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004500258OK >> GO TO 2.
NG >> Discover air leak location and repair. ECM Re-communicating Function " .
4. Perform EC-1084, " VIN Registration " .
5. Perform EC-1084, " Accelerator Pedal Released Position Learning " .
6. Perform EC-1084, " Throttle Valve Closed Position Learning " .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0506
0506 Idle speed control sys-
tem RPM lower than ex-
pected The idle speed is less than the target idle speed
by 100 rpm or more. • Electric throttle control actuator
• Intake air leak