Nissan Primera P12. Instruction — part 358
GLOW CONTROL SYSTEM
EC-617
[YD (WITHOUT EURO-OBD)]
C
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EC
7.
CHECK GLOW RELAY POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect glow relay.
3.
Check voltage between glow relay terminals 1, 3 and ground
with CONSULT-II or tester.
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 8.
8.
DETECT MALFUNCTIONING PART
Check the following.
●
80A fusible link
●
Harness for open or short between glow relay and battery
>> Repair harness or connectors.
9.
CHECK GLOW RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check harness continuity between ECM terminal 37 and glow relay terminal 2.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 11.
NG
>> GO TO 10.
10.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E62, F12
●
Harness for open or short between glow relay and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
MBIB0078E
Voltage: Battery voltage
PBIB1413E
Continuity should exist.
EC-618
[YD (WITHOUT EURO-OBD)]
GLOW CONTROL SYSTEM
11.
CHECK HARNESS CONTINUITY BETWEEN GLOW RELAY AND GLOW PLUG FOR OPEN AND
SHORT
1.
Disconnect glow plug harness connector.
2.
Check harness continuity between glow relay terminal 5 and glow plug harness connector.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 12.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
12.
CHECK GLOW RELAY
Refer to
EC-619, "Component Inspection"
.
OK or NG
OK
>> GO TO 13.
NG
>> Replace glow relay.
13.
CHECK GLOW PLUG
Refer to
EC-619, "Component Inspection"
.
OK or NG
OK
>> GO TO 14.
NG
>> Replace glow plug.
14.
CHECK INTERMITTENT INCIDENT
Refer to
EC-408, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Continuity should exist.
GLOW CONTROL SYSTEM
EC-619
[YD (WITHOUT EURO-OBD)]
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EC
Component Inspection
EBS015CH
GLOW RELAY
Check continuity between glow relay terminals 3 and 5 under the fol-
lowing conditions.
Operation takes less than 1 second.
GLOW PLUG
1.
Remove glow plug connecting plate.
2.
Check glow plug resistance.
NOTE:
●
Do not bump glow plug heating element. If it is bumped,
replace glow plug with a new one.
●
If glow plug is dropped from a height of 10 cm (3.94 in) or
higher, replace with a new one.
●
If glow plug installation hole is contaminated with car-
bon, remove it with a reamer or suitable tool.
●
Hand-tighten glow plug by turning it two or three times,
then tighten using a tool to specified torque.
Removal and Installation
EBS015CI
GLOW PLUG
Refer to
.
Conditions
Continuity
12V direct current supply between ter-
minals 1 and 2
Yes
No current supply
No
PBIB0428E
Resistance: Approximately 0.8
Ω
[at 25
°
C (77
°
F)]
: 20.1 N-m (2.1 kg-m, 15 ft-lb)
PBIB0429E
EC-620
[YD (WITHOUT EURO-OBD)]
EGR VOLUME CONTROL SYSTEM
EGR VOLUME CONTROL SYSTEM
PFP:14710
Description
EBS015CJ
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line.
This system controls flow rate of EGR led from exhaust manifold to intake manifold. The opening of the EGR
by-pass passage in the EGR volume control valve changes to control the flow rate. A built-in step motor
moves the valve in steps corresponding to the ECM output pulses. The opening of the valve varies for opti-
mum engine control. The optimum value stored in the ECM is determined by considering various engine con-
ditions.
The EGR volume control valve remains close under the following conditions.
●
Engine stopped
●
Engine starting
●
Low engine coolant temperature
●
Excessively high engine coolant temperature
●
High engine speed
●
Wide open throttle
COMPONENT DESCRIPTION
EGR Volume Control Valve
The EGR volume control valve uses a step motor to control the flow
rate of EGR from exhaust manifold. This motor has four winding
phases. It operates according to the output pulse signal of the ECM.
Two windings are turned ON and OFF in sequence. Each time an
ON pulse is issued, the valve opens or closes, changing the flow
rate. When no change in the flow rate is needed, the ECM does not
issue the pulse signal. A certain voltage signal is issued so that the
valve remains at that particular opening.
CONSULT-II Reference Value in Data Monitor Mode
EBS015CK
Specification data are reference values.
Sensor
Input Signal to ECM
ECM Function
Actuator
Crankshaft position sensor
Engine speed
EGR volume con-
trol
EGR volume control
valve
Vehicle speed sensor*
Vehicle speed
Engine coolant temperature sensor
Engine coolant temperature
Ignition switch
Start signal
Accelerator pedal position sensor
Accelerator pedal position
Mass air flow sensor
Amount of intake air
Air conditioner switch*
Air conditioner operation
SEF908Y
SEF411Y
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