Nissan Terrano model r20 series 2004. Instruction — part 179
Wiring Diagram
YEC677A
DTC P1207 CONT SLEEV POS SEN
TD27Ti
EC-438
Diagnostic Procedure
INSPECTION START
CHECK POWER SUPPLY CIRCUIT.
1. Turn ignition switch to “LOCK” position.
2. Disconnect ECM harness connector
and electrical fuel injection pump
harness connector.
3. Check harness continuity between
electrical fuel injection pump terminal
q
2
and ECM connector terminals
321
.
Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open or
short-circuit between
ECM and control sleeve
position sensor.
If NG, repair harness or
connectors.
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch to “LOCK” position.
2. Check harness continuity between con-
trol sleeve position sensor connector
terminal
q
3
and ECM connector termi-
nals
320
. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open or
short-circuit between
ECM and control sleeve
position sensor.
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT-I.
Check harness continuity between electri-
cal fuel injection pump connector termi-
nals
q
1
and ECM connector terminals
322
. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open or
short-circuit between
ECM and control sleeve
position sensor.
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT-II.
Check harness continuity between ECM
connector terminal
327
and engine
ground. Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open or
short-circuit.
If NG, repair harness or
connectors.
q
A
YEC248A
H
H
H
H
H
DTC P1207 CONT SLEEV POS SEN
TD27Ti
EC-439
q
A
CHECK COMPONENT
(Control sleeve position sensor).
Refer to “COMPONENT INSPECTION” on
page EC-440.
OK
E
NG
Have the injection pump
assembly serviced by an
authorised service repre-
sentative.
Disconnect and reconnect harness con-
nectors in the circuit. Then retest.
Trouble is not fixed.
Check ECM pin terminals for damage and
check the connection of ECM harness
connector. Reconnect ECM harness con-
nector and retest.
INSPECTION END
Component Inspection
CONTROL SLEEVE POSITION SENSOR
1. Disconnect control sleeve position sensor & electric governor
harness connector.
2. Check continuity between terminals
q
1
and
q
3
,
q
2
and
q
3
.
Resistance: Approximately 6.1
Ω
[at 25°C (77°F)]
If NG, take proper action.
YEC259A
H
H
H
H
DTC P1207 CONT SLEEV POS SEN
TD27Ti
Diagnostic Procedure (Cont’d)
EC-440
Description
SYSTEM DESCRIPTION
Sensor
Input signal to ECM
ECM function
Actuator
Engine coolant temperature
sensor
Engine coolant temperature
Cooling fan control
Cooling fan relay
Air conditioner switch
Air conditioner “ON” signal
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, air condi-
tioner ON signal.
On Board Diagnosis Logic
This diagnosis continuously monitors the engine coolant temperature.
If 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
Malfunction is detected when ...
Check Items (Possible Cause)
P1217
0208
I
Cooling fan does not operate properly (Overheat).
I
Cooling fan system does not operate properly (Over-
heat).
I
Engine coolant was not added to the system using
the proper filling method.
I
Harness or connectors
(The cooling fan circuit is open or shorted.)
I
Cooling fan
I
Radiator hose
I
Radiator
I
Radiator cap
I
Water pump
I
Thermostat
I
Engine coolant temperature sensor
For more information, refer to “MAIN 12 CAUSES OF
OVERHEATING”, EC-448.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant following the procedure in the LC
section, “Changing Engine Coolant”. 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 section, “Engine Coolant Mixture Ratio”.
2) After refilling coolant, run engine to ensure that no water-flow noise is emitted.
DTC P1217 OVER HEAT
TD27Ti
EC-441
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст