Nissan Pathfinder (2008 year). Manual — part 333
P1211 TCS CONTROL UNIT
EC-781
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P1211 TCS CONTROL UNIT
Description
INFOID:0000000001537878
The malfunction information related to TCS is transferred through the CAN communication line from “ABS
actuator and electric unit (control unit)” to ECM.
Be sure to erase the malfunction information such as DTC not only for “ABS actuator and electric unit
(control unit)” but also for ECM after TCS related repair.
On Board Diagnosis Logic
INFOID:0000000001537879
Freeze frame data is not stored in the ECM for this self-diagnosis.
The MIL will not light up for this self-diagnosis.
DTC Confirmation Procedure
INFOID:0000000001537880
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V at idle.
1.
Start engine and let it idle for at least 60 seconds.
2.
Check 1st trip DTC.
3.
If 1st trip DTC is detected, go to
Diagnosis Procedure
INFOID:0000000001537881
Go to
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1211
1211
TCS control unit
ECM receives a malfunction information from
“ABS actuator electric unit (control unit)”
• ABS actuator and electric unit (control
unit)
• TCS related parts
EC-782
< COMPONENT DIAGNOSIS >
[VK56DE]
P1212 TCS COMMUNICATION LINE
P1212 TCS COMMUNICATION LINE
Description
INFOID:0000000001537882
NOTE:
• If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to
• If DTC P1212 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
.
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and “ABS actuator and electric unit (control unit)”.
Be sure to erase the malfunction information such as DTC not only for “ABS actuator and electric unit
(control unit)” but also for ECM after TCS related repair.
On Board Diagnosis Logic
INFOID:0000000001537883
Freeze frame data is not stored in the ECM for this self-diagnosis.
The MIL will not light up for this self-diagnosis.
DTC Confirmation Procedure
INFOID:0000000001537884
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V at idle.
1.
Start engine and let it idle for at least 10 seconds.
2.
Check 1st trip DTC.
3.
If 1st trip DTC is detected, go to
Diagnosis Procedure
INFOID:0000000001537885
Go to
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1212
1212
TCS communication line
ECM can not receive the information from
“ABS actuator and electric unit (control
unit)” continuously.
• Harness or connectors
(The CAN communication line is open or short-
ed.)
• ABS actuator and electric unit (control unit)
• Dead (Weak) battery
P1217 ENGINE OVER TEMPERATURE
EC-783
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P1217 ENGINE OVER TEMPERATURE
On Board Diagnosis Logic
INFOID:0000000001559406
NOTE:
• If DTC P1217 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to
EC-566, "On Board Diagnosis Logic"
• If DTC P1217 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
EC-567, "On Board Diagnosis Logic"
.
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.
This self-diagnosis has the one trip detection logic.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to
. Also, replace the engine oil. Refer to
.
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-11, "Engine Oil Recommendation"
.
2.
After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function Check
INFOID:0000000001559407
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
Never remove the radiator cap and/or reservoir tank cap when the engine is hot. Serious burns could
be caused by high pressure fluid escaping from the radiator and/or reservoir tank.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT-II
1.
Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to
2.
Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to
3.
Turn ignition switch ON.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1217
1217
Engine over tempera-
ture (Overheat)
• Cooling fan does not operate properly (Over-
heat).
• Cooling fan system does not operate proper-
ly (Overheat).
• Engine coolant level was not added to the
system using the proper filling method.
• Engine coolant is not within the specified
range.
• Harness or connectors
(The cooling fan circuit is open or short-
ed.)
• IPDM E/R
• Cooling fan
• Cooling fan (Crankshaft driven)
• Radiator hose
• Radiator
• Radiator cap
• Reservoir tank
• Reservoir tank cap
• Water pump
• Thermostat
For more information, refer to
"Main 12 Causes of Overheating"
SEF621W
EC-784
< COMPONENT DIAGNOSIS >
[VK56DE]
P1217 ENGINE OVER TEMPERATURE
4.
Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-II.
5.
If the results are NG, go to
.
WITH GST
1.
Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to
2.
Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to
3.
Perform IPDM E/R auto active test and check cooling fan motor
operation, refer to
PCS-10, "Diagnosis Description"
4.
If NG, go to
Diagnosis Procedure
INFOID:0000000001559408
1.
CHECK COOLING FAN (CRANKSHAFT DRIVEN) OPERATION
1.
Start engine and let it idle.
2.
Make sure that cooling fan (crankshaft driven) operates normally.
OK or NG
OK (With CONSULT-II)>>GO TO 2.
OK (Without CONSULT-II)>>GO TO 3.
NG
>> Check cooling fan (crankshaft driven). Refer to
CO-46, "Removal and Installation (Crankshaft
2.
CHECK COOLING FAN OPERATION
With CONSULT-II
1.
Start engine and let it idle.
2.
Select “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-II.
3.
Make sure that cooling fan operates at each speed (LOW/HI).
OK or NG
OK
>> GO TO 4.
NG
>> Check cooling fan control circuit. (Go to "PROCEDURE A".)
3.
CHECK COOLING FAN OPERATION
Without CONSULT-II
1.
Perform IPDM E/R auto active test and check cooling fan motors operation, refer to
.
2.
Make sure that cooling fan operates at each speed (Low/High).
OK or NG
OK
>> GO TO 4.
NG
>> Check cooling fan control circuit. (Go to "PROCEDURE A".)
4.
CHECK COOLING SYSTEM FOR LEAK
OK or NG
OK
>> GO TO 5.
NG
>>
Check the following for leak. Refer to
.
• Hose
• Radiator
• Radiator cap
• Reservoir tank
• Water pump
5.
CHECK RESERVOIR TANK CAP
SEF621W
P1217 ENGINE OVER TEMPERATURE
EC-785
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OK or NG
OK
>> GO TO 6.
NG
>> Replace reservoir tank cap.
6.
CHECK COMPONENT PARTS
Check the following
• Thermostat. Refer to
CO-51, "Removal and Installation"
• Engine coolant temperature sensor. Refer to
EC-601, "Component Inspection"
OK or NG
OK
>> GO TO 7.
NG
>> Replace malfunctioning component.
7.
CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go to
EC-785, "Main 12 Causes of Overheating"
.
>> INSPECTION END
Main 12 Causes of Overheating
INFOID:0000000001559409
Engine
Step
Inspection item
Equipment
Standard
Reference page
OFF
1
• Blocked radiator
• Blocked condenser
• Blocked radiator grille
• Blocked bumper
• Visual
No blocking
—
2
• Coolant mixture
• Coolant tester
50 - 50% coolant mixture
MA-11, "Engine Oil Rec-
ommendation"
3
• Coolant level
• Visual
Coolant up to MAX level in
reservoir tank and radiator
filler neck
CO-39, "Changing Engine
Coolant"
4
• Reservoir tank cap
• Pressure tester
59 - 98 kPa
(0.6 - 1.0 kg/cm
2
, 9 - 14
psi) (Limit)
ON*
2
5
• Coolant leaks
• Visual
No leaks
ON*
2
6
• Thermostat
• Touch the upper and
lower radiator hoses
Both hoses should be hot
CO-51, "Removal and In-
stallation"
ON*
1
7
• Cooling fan
• CONSULT-II
Operating
See trouble diagnosis for
DTC P1217 (
).
ON*
2
7
• Cooling fan (Crankshaft
driven)
• Visual
Operating
See
and Installation (Crank-
shaft Driven Type)"
.
OFF
8
• Combustion gas leak
• Color checker chemical
tester 4 Gas analyzer
Negative
—
ON*
3
9
• Coolant temperature
gauge
• Visual
Gauge less than 3/4 when
driving
—
• Coolant overflow to res-
ervoir tank
• Visual
No overflow during driving
and idling
CO-39, "Changing Engine
Coolant"
OFF*
4
10
• Coolant return from res-
ervoir tank to radiator
• Visual
Should be initial level in
reservoir tank
CO-39, "Changing Engine
Coolant"
OFF
11
• Cylinder head
• Straight gauge feeler
gauge
0.1 mm (0.004 in) Maxi-
mum distortion (warping)
EM-212, "Inspection After
Disassembly"
12
• Cylinder block and pis-
tons
• Visual
No scuffing on cylinder
walls or piston
EC-786
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[VK56DE]
P1217 ENGINE OVER TEMPERATURE
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to
P1225 TP SENSOR
EC-787
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P1225 TP SENSOR
Component Description
INFOID:0000000001537895
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
On Board Diagnosis Logic
INFOID:0000000001537896
The MIL will not light up for this self-diagnosis.
DTC Confirmation Procedure
INFOID:0000000001537897
NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next step.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait at least 10 seconds.
3.
Turn ignition switch ON.
4.
Check 1st trip DTC.
5.
If 1st trip DTC is detected, go to
Diagnosis Procedure
INFOID:0000000001537898
1.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1.
Turn ignition switch OFF.
2.
Remove the intake air duct.
3.
Check if foreign matter is caught between the throttle valve and
the housing.
OK or NG
OK
>> GO TO 2.
NG
>> Remove the foreign matter and clean the electric throttle
control actuator inside.
2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
PBIB0145E
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1225
1225
Closed throttle position learning
performance
Closed throttle position learning value is
excessively low.
• Electric throttle control actuator
(TP sensor 1 and 2)
BBIA0371E
EC-788
< COMPONENT DIAGNOSIS >
[VK56DE]
P1225 TP SENSOR
1.
Replace the electric throttle control actuator.
2.
EC-497, "Throttle Valve Closed Position Learning"
3.
EC-497, "Idle Air Volume Learning"
.
>> INSPECTION END
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