Nissan Sentra Service Manual: ECU diagnosis information
Diagnosis sensor unit
DTC Index
DIAGNOSTIC CODE CHART
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated using air bag warning lamp or CONSULT each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
Flash Code Index
WARNING LAMP FLASH CODE CHART
How to read flash codes
- Put the vehicle in Diagnosis Mode. Refer to SRC-17, "Trouble Diagnosis without CONSULT".
- All codes are proceded by a seven second ”holding” flash.
- Identify how many primary flashes are displayed as well as the length of each primary flash.
- Refer to the tables and examples below to determine which SRS subsystem the code belongs to.
- Count the short secondary flashes that follow the primary flashes.
- Match the correct flashing pattern to the malfunctioning component and perform the Diagnosis Procedure.
Refer to the illustrations below for an example of each flashing pattern.
Front subsystem
Side subsystem
Air bag subsystem
Sensor subsystem
Diagnosis system (AIR BAG)
Description
CAUTION:
Never use electrical test equipment on any circuit related to the
SRS unless instructed in this Service
Manual. SRS wiring harnesses can be identified by yellow and/or o ...
Wiring diagram
SRS AIR BAG SYSTEM
Wiring Diagram
...
Other materials:
Fog light switch (if so equipped)
To turn the fog lights on, turn the headlight switch
to the position, then turn the
fog light
switch to the position.
If the headlight switch is in the AUTO position
and the fog light switch is moved to the ON
position, both the fog lights and the headlights
(including all other ...
Diagnosis system (ECM)
Diagnosis description : 1st trip detection
logic and two trip detection logic
When a malfunction is detected for the first time, 1st trip DTC and 1st trip
Freeze Frame data are stored in the
ECM memory. The MIL will not illuminate at this stage. <1st trip>
If the same malfunction is dete ...
S connector circuit
Description
The starter motor magnetic switch is supplied with power when the ignition
switch is turned to the START position
while the selector lever is in the P (Park) or N (Neutral) position (CVT Models)
or the clutch pedal is
depressed (M/T Models).
Diagnosis Procedure
Regarding Wiring ...