Nissan Murano: Dtc/circuit Diagnosis / P1212 Tcs Communication Line

Nissan Murano (Z52) 2015-2024 Service Manual / Engine / Engine Control System :: Vq35de / Dtc/circuit Diagnosis / P1212 Tcs Communication Line

DTC Description

DESCRIPTION

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.

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

DTC

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
P1212

TCS C/U FUNCTN

(TCS control unit function)
Diagnosis condition Start engine and let it idle
Signal (terminal) CAN communication signal
Threshold ECM cannot receive the information from “ABS actuator and electric unit (control unit)” continuously
Diagnosis delay time

POSSIBLE CAUSE

  • Harness or connectors

    (The 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 confirmation procedure for DTC UXXXX or P0607.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable.

  • DTC UXXXX: Refer to DTC Index.

  • DTC P0607: Refer to DTC Description.

NO>>

GO TO 2.

PRECONDITIONING

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

  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 10.5 V at idle.

>>

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE

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

  2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES>>

Proceed to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK DTC PRIORITY

If DTC P1212 is displayed with DTC UXXXX or P0607, first perform the confirmation procedure for DTC UXXXX or P0607.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable.

  • DTC UXXXX: Refer to DTC Index.

  • DTC P0607: Refer to DTC Description.

NO>>

GO TO 2.

CHECK DTC WITH BRC

Perform the trouble diagnosis for BRC.

>>

Proceed to Work Flow.

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