Nissan Sentra manuals

Nissan Sentra Service Manual: C1609 Vehicle speed signal

DTC Logic

Dtc detection logic

DTC

Display item

Malfunction detected condition

Possible cause

C1609 CAN VHCL SPEED
  • Malfunction is detected in vehicle speed signal that is output from abs actuator and electric unit (control unit) via can communication.
  • ABS actuator and electric unit (control unit) input signal malfunction is detected.
  • Harness or connector (CAN communication line)
  • EPS control unit
  • Abs malfunction
  • Vehicle speed signal malfunction

Dtc confirmation procedure

1.PRECONDITIONING

If dtc confirmation procedure has been previously conducted, always turn ignition switch off and wait at least 10 seconds before conducting the next test.

>> Go to 2.

2.Dtc reproduction procedure

With consult


  1. Turn the ignition switch OFF to ON.

  2. Perform EPS self-diagnosis.

Is DTC c1609 detected? Yes >> proceed to diagnosis procedure. Refer to stc-29, "diagnosis procedure".

No >> inspection end.

Diagnosis Procedure

1.Perform abs actuator and electric unit (control unit) self-diagnosis

With consult


  1. Turn the ignition switch off to on.

  2. Perform ABS self-diagnosis.

Is any dtc detected? Yes >> check the dtc. Refer to stc-14, "dtc index".

No >> go to 2.

2.CHECK TERMINALS AND HARNESS CONNECTORS

Check eps control unit pin terminals for damage or loose connection with harness connector.

Is the inspection result normal? Yes >> go to 3.

No >> repair or replace the malfunctioning parts.

3.Perform self-diagnosis

Perform EPS self-diagnosis. With consult


Perform EPS self-diagnosis.

Is dtc c1609 detected? Yes >> replace eps control unit. Refer to stc-39, "removal and installation".

No >> check intermittent incident. Refer to gi-39, "intermittent incident".

C1607, C1608 EPS Control unit
DTC Logic DTC DETECTION LOGIC Dtc Display item Malfunction detected condition Possible cause C1607 EEPROM When the memory (EEPROM) system malfunction is detected in ...

U1000 CAN Comm circuit
Description Can (controller area network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellen ...

Other materials:

P0222, P0223 TP Sensor
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0222 or P0223 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to EC-353, "DTC Logic". DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible caus ...

L terminal circuit (open)
Description The “L” terminal circuit controls the charge warning lamp. The charge warning lamp turns ON when the ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine running, the charge warning lamp turns OFF. If the charge warnin ...

The seat belt reminder warning continues sounding, or does not sound
Description Seat belt reminder warning does not sound. Seat belt reminder warning sounds continuously. Diagnosis procedure 1.Check seat belt warning lamp Turn ignition switch on. Check the operation of the seat belt warning lamp in the combination meter. Is the inspection ...

© 2014-2026 Copyright b17.nisentra.com