Nissan Titan A60. Manual - part 423

EC-358

< DTC/CIRCUIT DIAGNOSIS >

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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 

CO-11, "Changing Engine

Coolant"

. Also, replace the engine oil. Refer to 

LU-9, "Changing 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 

CO-10, "Inspection"

.

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 

EC-439,

"Diagnosis Procedure"

.

2. Confirm whether customer filled the coolant or not. If customer

filled the coolant, skip the following steps and go to 

EC-439,

"Diagnosis Procedure"

.

3. Start engine.
4. Make sure that cooling fan (crankshaft driven) operates.
5. If are NG, go to 

EC-439, "Diagnosis Procedure"

.

 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 

EC-360, 

"Main 13 Causes of Overheating"

.

SEF621W

P1217 ENGINE OVER TEMPERATURE

EC-359

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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 

EC-439,

"Diagnosis Procedure"

.

2. Confirm whether customer filled the coolant or not. If customer

filled the coolant, skip the following steps and go to 

EC-439,

"Diagnosis Procedure"

.

3. Start engine and make sure that cooling fan (crankshaft driven)

operates.

CAUTION:

Be careful not to overheat engine.

4. If NG, go to 

EC-439, "Diagnosis Procedure"

.

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

Driven Type)"

.

2.

CHECK COOLING SYSTEM FOR LEAK

Refer to 

CO-10, "Inspection"

.

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 

CO-10, "Inspection"

.)

• 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

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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 

CO-8, "Troubleshooting Chart"

.

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

CO-10, "Inspection"

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)

CO-10, "Inspection"

ON*

2

5

• Coolant leaks

• Visual

No leaks

CO-10, "Inspection"

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 

CO-19, "Exploded 

View"

.

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

EM-78, "Inspection After 
Disassembly"

P1220 FUEL PUMP CONTROL MODULE (FPCM)

EC-361

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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