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Nissan Titan. Manual - part 269

P1212 TCS COMMUNICATION LINE

EC-377

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

P1212 TCS COMMUNICATION LINE

Description

INFOID:0000000009886807

NOTE:

• If DTC P1212 is displayed with DTC U0101 or U1001, first perform the trouble diagnosis for DTC

U0101, U1001. Refer to

EC-155

• If DTC P1212 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer

EC-362

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:0000000009886808

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:0000000009886809

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

EC-377, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000009886810

Go to

BRC-24, "CONSULT Function (ABS)"

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

EC-378

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

P1217 ENGINE OVER TEMPERATURE

P1217 ENGINE OVER TEMPERATURE

On Board Diagnosis Logic

INFOID:0000000009886811

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:0000000009886812

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

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-379,

"Diagnosis Procedure"

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

filled the coolant, skip the following steps and go to

EC-379,

"Diagnosis Procedure"

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

EC-379, "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-380,

"Main 13 Causes of Overheating"

SEF621W

P1217 ENGINE OVER TEMPERATURE

EC-379

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

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-379,

"Diagnosis Procedure"

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

filled the coolant, skip the following steps and go to

EC-379,

"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-379, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000009886813

INSPECTION START

1. Start engine and let it idle.

2. Make sure that cooling fan (crankshaft driven) operates normally.
OK or NG

>> GO TO 2.

>> Check cooling fan (crankshaft driven). Refer to

CO-18, "Removal and Installation (Crankshaft

Driven Type)"

CHECK COOLING SYSTEM FOR LEAK

Refer to

CO-10, "Inspection"

OK or NG

>> GO TO 3.

>> Check the following for leak.

• Hose

• Radiator

• Radiator cap

• Water pump

• Reservoir tank

CHECK COMPONENT PARTS

Check the following.

• RESERVOIR TANK CAP (Refer to

CO-10, "Inspection"

• Thermostat. (Refer to

CO-22, "Removal and Installation"

• Water control valve. (Refer to

CO-22, "Removal and Installation"

• Engine coolant temperature sensor. (Refer to

EC-191, "Component Inspection"

OK or NG

>> GO TO 4.

>> Replace malfunctioning component.

CHECK MAIN 13 CAUSES

If the cause cannot be isolated, go to

EC-380, "Main 13 Causes of Overheating"

SEF621W

SEF882V

EC-380

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

P1217 ENGINE OVER TEMPERATURE

>> INSPECTION END

Main 13 Causes of Overheating

INFOID:0000000009886814

*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

• Blocked radiator
• Blocked condenser
• Blocked radiator grille
• Blocked bumper

• Visual

No blocking

—