Nissan Sentra Service Manual: On Board Diagnostic (OBD) System of Engine and CVT
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the driver of a malfunction causing emission deterioration.
CAUTION:
- Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause the MIL to light up.
- Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease, dirt, bent terminals, etc.)
- Certain systems and components, especially those related to OBD, may use a new style slide-locking type harness connector. For description and how to disconnect, refer to PG-42, "Description".
- Be sure to route and secure the harnesses properly after work. The interference of the harness with a bracket, etc. may cause the MIL to light up due to the short circuit.
- Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube may cause the MIL to light up due to the malfunction of the EVAP system or fuel injection system, etc.
- Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and TCM (Transmission control module) before returning the vehicle to the customer.
Precaution for Procedure without Cowl Top Cove.r.
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.
...
General Precautions
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness connector,
turn ignitio ...
Other materials:
Cowl top
Exploded view
Cowl top seal
Cowl top grille cap
Cowl top cover
Cowl top extension
Cowl top extension insulator
Clip
EPT seal [t: 3.0 mm (0.12 in)
Cowl top cover cap
EPT seal [t: 5.0 mm (0.20 in)]
Pawl
Clip
Front
Removal and installation
COWL TOP COVER
Removal
Rem ...
Precautions on supplemental restraint system
This Supplemental Restraint System (SRS) section
contains important information concerning
the following systems:
Driver and passenger supplemental frontimpact
air bag (NISSAN Advanced Air Bag
System)
Front seat-mounted side-impact supplemental
air bag
Roof-mounted curtain side-impac ...
Output speed sensor
Exploded View
Transaxle assembly
Output speed sensor
O-ring
: Vehicle front
: Always replace after every
disassembly.
: NВ·m (kg-m, in-lb)
: Genuine NISSAN CVT Fluid NS-3
Removal and Installation
REMOVAL
Disconnect the output speed sensor harness connector.
Remove ...
