Nissan Sentra Service Manual: C1729 Vehicle speed signal

Nissan Sentra Service Manual / Suspension / Road wheels & Tires / DTC/Circuit diagnosis / C1729 Vehicle speed signal

DTC Logic

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.

Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTCs
Register TPMS transmitter IDs

DTC DETECTION LOGIC

DTC	Display Item	Malfunction detected condition	Possible causes
C1729	VHCL SPEED SIG ERR	Vehicle speed signal not detected	CAN communication malfunction BCM Combination meter

DTC CONFIRMATION PROCEDURE

1.PERFORM SELF DIAGNOSTIC RESULTWith CONSULT

With CONSULT

Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more without stopping.
Stop the vehicle.
Perform вЂњSELF DIAGNOSTIC RESULTвЂќ.

Is DTC вЂњC1729вЂќ detected? YES >> Proceed to WT-32, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.

Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTCs
Register TPMS transmitter IDs

1.PERFORM COMBINATION METER SELF DIAGNOSTIC RESULT

Perform вЂњSELF DIAGNOSTIC RESULTвЂќ for вЂњMETER/M&AвЂќ. Refer to MWI-17, "CONSULT With CONSULT

Perform вЂњSELF DIAGNOSTIC RESULTвЂќ for вЂњMETER/M&AвЂќ. Refer to MWI-17, "CONSULT Function (METER/ M&A)".

Are any DTCs detected? YES >> Refer to MWI-26, "DTC Index".

NO >> GO TO 2.

2.CHECK BCM INPUT/OUTPUT SIGNAL

Check the BCM input/output signal values. Refer to BCS-29, "Reference Value" (with Intelligent Key system) or BCS-97, "Reference Value" (without Intelligent Key system).

Is the inspection result normal? YES >> Check pin terminal and connection of each harness connector for malfunctioning conditions.

NO >> Replace the BCM. Refer to BCS-73, "Removal and Installation" (with Intelligent Key system) or BCS-126, "Removal and Installation" (without Intelligent Key system).

C1716, C1717, C1718, C1719 Transmitter (pressure data)

DTC Logic NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information. Activate and display TPMS ...

Low tire pressure warning lamp

Component Function Check 1.CHECK THE ILLUMINATION OF THE LOW TIRE PRESSURE WARNING LAMP Check that the low tire pressure warning lamp is turned OFF after illuminating for approximately 1 second, ...

Other materials:

Seats
WARNING Do not ride in a moving vehicle when the seatback is reclined. This can be dangerous. The shoulder belt will not be against your body. In an accident, you could be thrown into it and receive neck or other serious injuries. You could also slide under the ...

U0155 Lost communication (IPC)
DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms [Trouble diagnosis content] DTC detection condition Possible causes U0155 LOST COMM (IPC) [Lost Communication With Instrument Panel Cluster (IPC) Control Module] When the ignition switch is ON, TCM is ...

Dtc/circuit diagnosis
Power supply and ground circuit Audio unit AUDIO UNIT : Diagnosis Procedure Regarding wiring diagram information, refer to av-88, "wiring diagram". 1.Check fuse Check that the following fuses are not blown. Are the fuses blown? Yes >> replace the blown fuse after repairing ...