Nissan Sentra B18 (2020-2025) Service Manual: A-Bag Branch Line Circuit
Diagnosis Procedure
Warning:
-
Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes or more. (To discharge backup capacitor.)
-
Never use unspecified tester or other measuring device.
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CHECK CONNECTOR
-
Turn the ignition switch OFF.
-
Disconnect the battery cable from the negative terminal.
-
Check the terminals and connectors of the air bag diagnosis sensor unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES >>GO TO 2.
NO >>Replace the main harness.
-
-
CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Check the air bag diagnosis sensor unit. Refer to Work Flow.
Is the inspection result normal?
YES >>Replace the main harness.
NO >>Replace parts whose air bag system has a malfunction.
Tcm Branch Line Circuit (vehicle Can Communication 1 Circuit)
Diagnosis Procedure
Diagnosis Procedure
CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the
...
Hvac Branch Line Circuit
Diagnosis Procedure
Diagnosis Procedure
CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the
...
Other materials:
Bluetooth connections screen
"
"
(back) key
Bluetooth tab
Connections screen
"Add New" key
"
"
(settings) key
"
"
(info) key
"
"
(Bluetooth Audio connection) key
"
"
(Bluetooth Hands-Free Phone
System connection) key
U ...
P1574 ASCD Vehicle speed sensor
Description
The ECM receives two vehicle speed sensor signals via CAN communication line.
One is sent from combination
meter, and the other is from TCM (Transmission control module). The ECM uses
these signals for ASCD
control. Refer to EC-51, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : Sys ...
Eco Mode Switch
Removal and Installation
Removal and Installation
REMOVAL
Remove
instrument lower panel LH. Refer to Removal and Installation.
Release
pawls using a suitable tool and remove ECO mode switch.
: ...
