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Nissan X-Trail 32. Manual - part 801

P1212 TCS COMMUNICATION LINE

EC-333

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P1212 TCS COMMUNICATION LINE

DTC Description

INFOID:0000000010775229

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.

DTC DETECTION LOGIC

Freeze frame data is not stored in the ECM for this self-diagnosis.

POSSIBLE CAUSE

• Harness or connectors (CAN communication line is open or shorted.)
• ABS actuator and electric unit (control unit)
• Dead (Weak) battery

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

CHECK DTC PRIORITY

If DTC P1212 is displayed with DTC UXXXX or P0607, first perform the trouble diagnosis for DTC UXXXX or
P0607.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to

EC-109, "DTC Index"

>> GO TO 2.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.

>> GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE

Start engine and let it idle for at least 10 seconds.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to

EC-333, "Diagnosis Procedure"

NO-1

>> To check malfunction symptom before repair: Refer to

GI-44, "Intermittent Incident"

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010775230

CHECK DTC PRIORITY

If DTC P1212 is displayed with DTC UXXXX or P0607, first perform the trouble diagnosis for DTC UXXXX or
P0607.

Is applicable DTC detected?

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P1212

TCS/CIRC
(TCS/CIRC)

ECM can not receive the information from “ABS actuator and electric unit
(control unit)” continuously.

EC-334

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P1212 TCS COMMUNICATION LINE

YES

>> Perform diagnosis of applicable. Refer to

EC-109, "DTC Index"

>> GO TO 2.

PERFORM BASIC INSPECTION TO CHECK THE BRAKE CONTROL SYSTEM

Perform basic inspection to check the brake control system. Refer to

BRC-95, "Work Flow"

>> Repair or replace malfunctioning part.

P1217 ENGINE OVER TEMPERATURE

EC-335

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P1217 ENGINE OVER TEMPERATURE

DTC Description

INFOID:0000000010775231

DTC DETECTION LOGIC

NOTE:
ECM controls cooling fan to the maximum speed when receives the signal abnormality of each sensor, CAN
and IPDM E/R, and severed wire short circuit abnormality.
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.

CAUTION:

When a malfunction is indicated, be sure to exchange the coolant and 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.

After refilling coolant, run engine to ensure that no water-flow noise is emitted.

POSSIBLE CAUSE

• Harness or connectors (Cooling fan circuit is open or shorted.)
• IPDM E/R
• Cooling fan relay
• Cooling fan motor
• Cooling fan
• Radiator hose
• Radiator
• Radiator cap
• Water pump
• Thermostat
• Water control valve
• Amount of engine coolant

FAIL-SAFE

PERFORM DTC CONFIRMATION PROCEDURE

CHECK DTC PRIORITY

If DTC P1217 is displayed with DTC UXXXX or P0607, first perform the trouble diagnosis for DTC UXXXX or
P0607.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to

EC-109, "DTC Index"

>> GO TO 2.

PERFORM COMPONENT FUNCTION CHECK-1

WARNING:

Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
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.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P1217

ENG OVER TEMP
(Engine over temperature)

Engine coolant temperature reaches an abnormally high temperature.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

Engine speed will not rise more than 1,800rpm due to the fuel cut.

EC-336

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P1217 ENGINE OVER TEMPERATURE

Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
NOTE:
Use component function check to check the overall function of the
cooling fan. During this check, a DTC might not be confirmed.
Is the coolant level in the reservoir tank and/or radiator below the
proper range?

YES

>> Proceed to

EC-336, "Diagnosis Procedure"

>> GO TO 3.

PERFORM COMPONENT FUNCTION CHECK-2

Confirm whether customer filled the coolant or not.

Did customer fill the coolant?

YES

>> Proceed to

EC-336, "Diagnosis Procedure"

>> GO TO 4.

PERFORM COMPONENT FUNCTION CHECK-3