Nissan Sentra Service Manual: 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 |
|
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 “SELF DIAGNOSTIC RESULT”.
Is DTC “C1729” 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
With CONSULT
Perform “SELF DIAGNOSTIC RESULT” for “METER/M&A”. 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:
Hoses
HOSE REMOVAL AND INSTALLATION
To prevent damage to
rubber hose, do not pry off rubber hose with
tapered tool or screwdriver.
To reinstall the
rubber hose securely, make sure that hose insertion
length and orientation is correct. (If tube is equipped with hose ...
Service Notice or Precautions for Steering System
In case of removing steering gear assembly, make the final
tightening with grounded and unloaded vehicle
condition, and then check wheel alignment.
Observe the following precautions when disassembling.
Before disassembly, thoroughly clean the outside of the
unit.
...
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-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
types of collision. Information necessary to service the system ...
