Nissan Sentra B18 (2020-2025) Service Manual / Steering / Steering Control System :: Dtc/circuit Diagnosis / C1629-87 Ipdm E/r System

Nissan Sentra B18 (2020-2025) Service Manual: C1629-87 Ipdm E/r System

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
C1629-87	IPDM E/R system (Intelligent power distribution module engine room system)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	CAN communication signal
		Threshold	When a malfunction is detected in IPDM E/R.
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication line
IPDM E/R
EPS control unit

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING
1. If “Confirmation Procedure” has been previously conducted, always place the ignition switch OFF and wait at least 10 seconds before conducting the next test.
>>
GO TO 2.
DTC REPRODUCTION PROCEDURE
1. CONSULT
  1. Ignition switch ON.
  2. Select "Self Diagnostic Result" mode of “EPS/DAST 3”.
Is DTC “C1629-87” detected?
YES>>
Proceed to diagnosis procedure. Refer to DTC Diagnosis Procedure.
NO>>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>
Confirmation after repair: Inspection End.

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

PERFORM SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Ignition switch ON.
  2. Select "Self Diagnostic Result" mode of “IPDM E/R”.
Is any DTC detected?
YES >>
Check the DTC. Refer to DTC Index.
NO >>
GO TO 2.
CHECK CONNECTOR AND TERMINAL
1. 1. Ignition switch OFF.
  2. Disconnect IPDM E/R harness connector.
  3. Disconnect EPS control unit harness connector.
  4. Check the connector for disconnection or looseness.
  5. Check the pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES >>
GO TO 3.
NO >>
Repair or replace harness, connector, or terminal, securely lock the connector.
PERFORM SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Connect IPDM E/R harness connector.
  2. Connect EPS control unit harness connector.
  3. Ignition switch ON.
  4. Erase "Self Diagnostic Result" mode of "EPS/DAST 3".
  5. Ignition switch OFF and wait for at least 10 seconds.
  6. Ignition switch ON.
  7. Select "Self Diagnostic Result" mode of “EPS/DAST 3”.
Is DTC “C1629-87” detected?
YES>>
EPS control unit is malfunctioning. Replace steering gear assembly. Refer to Removal and Installation.
NO>>
Inspection End.

Other materials:

Forward-facing child restraint installation using LATCH
Refer to all Warnings and Cautions in the “Child safety” and “Child restraints” sections before installing a child restraint. Follow these steps to install a forward-facing child restraint using the LATCH system: Position the child restraint on the seat. Always follow the child r ...

Rear Suspension :: Precaution. Precautions
Precautions Precaution for Supplemental Restraint System (srs) "air Bag" and "seat Belt Pre-Tensioner" Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-T ...

Power Generation Voltage Variable Control System Operation Inspection. Diagnosis Procedure
Diagnosis Procedure Diagnosis Procedure CAUTION: When performing this inspection, always use a charged battery that has completed the battery inspection. (When the charging rate of the battery is low, the response speed of the voltage change will become slow. This can ...