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SEF095X
Component DescriptionNJEC0513The valve timing control system is utilized to control intake valve
opening and closing timing. Engine coolant temperature signals,
engine speed and throttle position are used to determine intake
valve timing.
The intake camshaft sprocket position is regulated by oil pressure
controlled by the intake valve timing control.
When ECM sends ON signal to intake valve timing control solenoid
valve, oil pressure is transmitted to camshaft sprocket. Then, intake
side camshaft is advanced.
OperationNJEC0514
Engine operating condition
Intake valve tim-
ing control sole-
noid valveIntake valve
opening and
closing timeValve overlap
Engine coolant
temperatureEngine speed B/FUEL SCHDL Neutral switch
20ÉC (68ÉF) -
70ÉC (158ÉF)
1,150 - 4,600
rpmAbove 3 msec
OFF ON Advance Increased
Above 70ÉC
(158ÉF)Above 7 msec
Conditions other than those above OFF Normal Normal
CONSULT-II Reference Value in Data Monitor
Mode
NJEC0515
MONITOR ITEM CONDITION SPECIFICATION
INT/V SOL-B1+Engine: After warming up
+Lift up drive wheels and suitable
gear positionIdle OFF
Revving engine from 2,000 to
3,000 rpmON
ECM Terminals and Reference ValueNJEC0516Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 Y/RIntake valve timing control
solenoid valve[Engine is running]
+Idle speedBATTERY VOLTAGE
(11 - 14V)
On Board Diagnosis LogicNJEC0517
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P 1111
1111+An improper voltage signal is entered to ECM through
intake valve timing control solenoid valve.+Harness or connectors
(The intake valve timing control solenoid valve
circuit is open or shorted.)
+Intake valve timing control solenoid valve
D T C P 1111INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG
Component Description
EC-329
Page 629 of 2493
4 CHECK VALVE TIMING CONTROL SOLENOID VALVE
Refer to ªComponent Inspectionº, EC-333.
OK or NG
OK©GO TO 5.
NG©Replace valve timing control solenoid valve.
5 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-144.
©INSPECTION END
SEF159Y
Component InspectionNJEC0521INTAKE VALVE TIMING CONTROL SOLENOID VALVENJEC0521S011. Check oil passage visually for any metal debris.
2. Supply intake valve timing control solenoid valve terminals with
battery voltage.
3. Make sure that inside plunger protrudes.
If NG, replace intake valve timing control solenoid valve.
D T C P 1111INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG
Diagnostic Procedure (Cont'd)
EC-333
Page 631 of 2493

ECM Terminals and Reference Value=NJEC0487Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
13 LG/R Cooling fan relay[Engine is running]
+Cooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
+Cooling fan is operating0 - 0.6V
23 L/W Air conditioner switch[Engine is running]
+Both air conditioner switch and blower switch are
ªONº (Compressor operates)Approximately 0V
[Engine is running]
+Air conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
On Board Diagnosis LogicNJEC0572If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P1217
1217+The engine coolant temperature is extraordinary high,
even when the load is not heavy.+Harness or connectors
(The cooling fan circuit is open or shorted)
+Cooling fan
+Thermostat
+Improper ignition timing
+Engine coolant temperature sensor
+Blocked radiator
+Blocked front end (Improper fitting of nose mask)
+Crushed vehicle frontal area (Vehicle frontal is
collided but not repaired)
+Blocked air passage by improper installation of
front fog lamp or fog lamps.
+Improper mixture ratio of coolant
+Damaged bumper
For more information, refer to ªMAIN 12 CAUSES
OF OVERHEATINGº, EC-345.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant following the procedure in the LC-17,
ªChanging Engine Coolantº. Also, replace the engine oil.
1) Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to use
coolant with the proper mixture ratio. Refer to MA-22, ªAnti-freeze Coolant Mixture Ratioº, ªRECOM-
MENDED FLUIDS AND LUBRICANTSº.
2) After refilling coolant, run engine to ensure that no water-flow noise is emitted.
DTC P1217 OVERHEAT (COOLING SYSTEM)QG
ECM Terminals and Reference Value
EC-335
Page 732 of 2493
7 CHECK VALVE TIMING CONTROL SOLENOID VALVE
Refer to ªComponent Inspectionº, EC-436.
OK or NG
OK©GO TO 8.
NG©Replace valve timing control solenoid valve.
8 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-144.
©INSPECTION END
SEF159Y
Component InspectionNJEC1775INTAKE VALVE TIMING CONTROL SOLENOID VALVENJEC1775S011. Check oil passage visually for any metal debris.
2. Supply intake valve timing control solenoid valve terminals with
battery voltage.
3. Make sure that inside plunger protrudes.
If NG, replace intake valve timing control solenoid valve.
INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG
Diagnostic Procedure (Cont'd)
EC-436
Page 750 of 2493
Diagnostic ProcedureNJEC0579
1 CHECK ENGINE START
Turn ignition switch ªOFFº, and restart engine.
Is engine running?
YesorNo
Yes (With CONSULT-II)©GO TO 2.
Yes (Without CONSULT-
II)©GO TO 12.
No©GO TO 3.
2 SEARCH FOR MALFUNCTIONING CIRCUIT
With CONSULT-II
1. Perform ªPOWER BALANCEº in ªACTIVE TESTº mode with CONSULT-II.
2. Search for circuit which does not produce a momentary engine speed drop.
SEF190Y
©GO TO 12.
3 CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ON.
2. Check voltage between ECM terminals 110, 112 and ground with CONSULT-II or tester.
SEF366X
OK or NG
OK©GO TO 4.
NG©GO TO TROUBLE DIAGNOSIS FOR POWER SUPPLY, EC-145.
IGNITION SIGNALQG
Diagnostic Procedure
EC-454
Page 751 of 2493
4 CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
JEF121Y
3. Turn ignition switch ON.
4. Check voltage between condenser terminal 1 and ground with CONSULT-II or tester.
SEF367X
OK or NG
OK©GO TO 10.
NG©GO TO 5.
5 CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect ECM relay. (For ECM relay location, refer to ªEngine Control Component Parts Locationº.)
3. Check harness continuity between ECM relay terminal 7 and condenser terminal 1. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 7.
NG©GO TO 6.
6 DETECT MALFUNCTIONING PART
Check the harness for open or short between ECM relay and condenser.
©Repair open circuit or short to ground or short to power in harness or connectors.
IGNITION SIGNALQG
Diagnostic Procedure (Cont'd)
EC-455
Page 752 of 2493
7 CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
Check voltage between ECM relay terminal 6 and ground with CONSULT-II or tester.
SEF368X
OK or NG
OK©GO TO 9.
NG©GO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
+15A fuse
+Harness for open and short between ECM relay and fuse
©Repair or replace harness or connectors.
9 CHECK ECM RELAY
Refer to ªComponent Inspectionº, EC-458.
OK or NG
OK©GO TO 17.
NG©Replace ECM relay.
10 CHECK CONDENSER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check harness continuity between condenser terminal 2 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 11.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
11 CHECK CONDENSER
Refer to ªComponent Inspectionº, EC-458.
OK or NG
OK©GO TO 12.
NG©Replace condenser.
IGNITION SIGNALQG
Diagnostic Procedure (Cont'd)
EC-456
Page 753 of 2493
12 CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
3. Disconnect ignition coil harness connector.
JEF119Y
4. Turn ignition switch ON.
5. Check voltage between ignition coil terminal 1 and ground with CONSULT-II or tester.
SEF122Y
OK or NG
OK©GO TO 14.
NG©GO TO 13.
13 DETECT MALFUNCTIONING PART
Check the following.
+Harness connector E75, F36 (If so equipped)
+Harness for open or short between ignition coil and ECM relay terminal 7
©Repair or replace harness or connectors.
14 CHECK IGNITION COIL GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 15.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
IGNITION SIGNALQG
Diagnostic Procedure (Cont'd)
EC-457