Nissan Titan A60. Instruction — part 423
EC-358
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P1217 ENGINE OVER TEMPERATURE
P1217 ENGINE OVER TEMPERATURE
On Board Diagnosis Logic
INFOID:0000000006158815
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
.
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function Check
INFOID:0000000006158816
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-III
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. Start engine.
4. Make sure that cooling fan (crankshaft driven) operates.
5. If are NG, go to
WITH GST
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 was not added to the system
using the proper filling method.
• Engine coolant is not within the specified
range.
• Cooling fan (crankshaft driven)
• Radiator hose
• Radiator
• Radiator cap
• Reservoir tank
• Reservoir tank cap
• Water pump
• Thermostat
For more information, refer to
"Main 13 Causes of Overheating"
SEF621W
P1217 ENGINE OVER TEMPERATURE
EC-359
< DTC/CIRCUIT DIAGNOSIS >
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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. Start engine and make sure that cooling fan (crankshaft driven)
operates.
CAUTION:
Be careful not to overheat engine.
4. If NG, go to
Diagnosis Procedure
INFOID:0000000006158817
1.
INSPECTION START
1. Start engine and let it idle.
2. Make sure that cooling fan (crankshaft driven) operates normally.
OK or NG
OK
>> GO TO 2.
NG
>> Check cooling fan (crankshaft driven). Refer to
CO-19, "Removal and Installation (Crankshaft
2.
CHECK COOLING SYSTEM FOR LEAK
.
OK or NG
OK
>> GO TO 3.
NG
>> Check the following for leak.
• Hose
• Radiator
• Radiator cap
• Water pump
• Reservoir tank
3.
CHECK COMPONENT PARTS
Check the following.
• RESERVOIR TANK CAP (Refer to
.)
• Thermostat. (Refer to
CO-23, "Removal and Installation"
.)
• Water control valve. (Refer to
CO-23, "Removal and Installation"
• Engine coolant temperature sensor. (Refer to
EC-177, "Component Inspection"
OK or NG
OK
>> GO TO 4.
NG
>> Replace malfunctioning component.
4.
CHECK MAIN 13 CAUSES
If the cause cannot be isolated, go to
EC-360, "Main 13 Causes of Overheating"
.
SEF621W
SEF882V
EC-360
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P1217 ENGINE OVER TEMPERATURE
>> INSPECTION END
Main 13 Causes of Overheating
INFOID:0000000006158818
*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
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
3
• Coolant level
• Visual
Coolant up to MAX level in
reservoir tank and radiator
filler neck
CO-11, "Changing Engine
Coolant"
4
• Reservoir tank cap
• Pressure tester
95 - 125 kPa
(0.97 - 1.28 kg/cm
2
, 14 -
18 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-23, "Removal and In-
stallation"
ON*
1
7
• Cooling fan
• Visual
Operating
See
.
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-11, "Changing Engine
Coolant"
OFF*
4
10
• Coolant return from res-
ervoir tank to radiator
• Visual
Should be initial level in
reservoir tank
CO-11, "Changing Engine
Coolant"
OFF
11
• Water control valve
• Remove and inspect
the valve
Within the specified value
CO-23, "Removal and In-
stallation"
OFF
12
• Cylinder head
• Straight gauge feeler
gauge
0.1 mm (0.004 in) Maxi-
mum distortion (warping)
EM-78, "Inspection After
Disassembly"
13
• Cylinder block and pis-
tons
• Visual
No scuffing on cylinder
walls or piston
P1220 FUEL PUMP CONTROL MODULE (FPCM)
EC-361
< DTC/CIRCUIT DIAGNOSIS >
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P1220 FUEL PUMP CONTROL MODULE (FPCM)
Description
INFOID:0000000006158819
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
This system controls the fuel pump operation. The amount of fuel flow delivered from the fuel pump is altered
between two flow rates by the FPCM operation. The FPCM determines the voltage supplied to the fuel pump
(and therefore fuel flow) according to the following conditions.
COMPONENT DESCRIPTION
The FPCM adjusts the voltage supplied to the fuel pump to control
the amount of fuel flow. When the FPCM increases the voltage sup-
plied to the fuel pump, the fuel flow is increased. When the FPCM
decreases the voltage, the fuel flow is decreased.
On Board Diagnosis Logic
INFOID:0000000006158820
DTC Confirmation Procedure
INFOID:0000000006158821
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next step.
1. Turn ignition swich OFF and wait at least 10 seconds.
2. Turn ignition swich ON.
3. Turn ignition swich OFF and wait at least 10 seconds.
TESTING CONDITION:
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed*
Fuel pump control
Fuel pump control module
(FPCM)
Mass air flow sensor
Amount of intake air
Engine coolant temperature sensor
Engine coolant temperature
Battery
Battery voltage*
Conditions
Amount of fuel flow
Supplied voltage
• Engine cranking
• Engine coolant temperature is below 10
°C (50°F).
• Engine is running under heavy load and high speed conditions
high
Battery voltage
(11 - 14V)
Except the above
low
Approximately 8V
BBIA0601E
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1220
1220
Fuel pump control module
(FPCM)
An improper voltage signal from the FPCM, which is
supplied to a point between the fuel pump and the
dropping resistor, is detected by ECM.
• Harness or connectors
(FPCM circuit is shorted.)
• Dropping resistor
• FPCM
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