Nissan Sentra manuals

Nissan Sentra Service Manual: P1212 TCS Communication line

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 Logic

DTC DETECTION LOGIC

NOTE:

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

DTC No.

CONSULT screen terms (Trouble diagnosis content)

DTC detecting condition

Possible cause

P1212 TCS/CIRC (TCS/CIRC) ECM can not receive the information from “ABS actuator and electric unit (control unit)” continuously.
  • Harness or connectors (CAN communication line is open or shorted.)
  • ABS actuator and electric unit (control unit)
  • Dead (Weak) battery

DTC CONFIRMATION PROCEDURE

1.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.
  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 10.5V at idle.

>> GO TO 2.

2.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 EC-368, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

Perform the trouble diagnosis for TCS. Refer to BRC-51, "Work Flow".

NOTE:

If DTC P1212 is displayed with DTC UXXXX and/or P0607, perform the following trouble diagnosis

P117A AIR Fuel ratio
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P117A is displayed with other DTC, first perform the trouble diagnosis for the other DTC. Refer to EC-94, "DTC Index". DTC No. CON ...

P1217 Engine over temperature
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P1217 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. If DTC P1217 is displayed with DTC P0607, first perform the ...

Other materials:

Preparation
Special Service Tool The actual shape of the tools may differ from those illustrated here. Commercial Service Tool ...

Compression pressure
Inspection Warm up the engine to full operating temperature. Release fuel pressure. Refer to EC-143, "Work Procedure". Remove ignition coil and spark plug from each cylinder. Refer to EM-46, "Exploded View". Connect engine tachometer (not required in use of CONSULT). ...

Starting the engine (models with NISSAN Intelligent Key® system)
Apply the parking brake. Continuously Variable Transmission: Move the shift lever to P (Park) or N (Neutral). P (Park) is recommended. The starter is designed not to operate if the shift lever is in any of the driving positions. Manual Transmission: Move the shift lever to N ( ...

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