Nissan Sentra Service Manual: Removal and installation
BCM
Removal and installation
Note:
Before replacing BCM, perform “READ CONFIGURATION” to save or print current vehicle specification. Refer to BCS-61, "CONFIGURATION (BCM) : Description".
Removal
- Disconnect the negative battery terminal. Refer to pg-52, "removal and installation".
- Remove instrument lower panel LH and instrument side finisher LH. Refer to IP-21, "Removal and Installation".
- Remove fuse block (j/b) screws (a) and position (bcm) aside.
- Remove harness clip (a).
- Remove the screws (a) from the bcm (1).
- Disconnect the harness connectors and remove the bcm.
Installation
Installation is in the reverse order of removal.
Caution:
- Perform “configuration (bcm)” when replacing bcm. Refer to bcs-61, "configuration (bcm) : description"
- Be sure to perform the system initialization (nats) when replacing bcm. Refer to bcs-60, "additional service when replacing control unit (bcm) : work procedure".
- When replacing bcm, if new bcm does not come with keyfobs attached, all existing keyfobs must be re-registered. Refer to the consult immobilizer mode and follow the on-screen instructions.
Combination switch
Exploded view
- Combination switch
- Combination switch harness connector
Front
Note:
Shown with the steering wheel removed for clarity only.
Removal and installation
Removal
Caution:
- Before servicing, turn the ignition switch off, disconnect both battery terminals and wait at least three minutes.
- Do not use air or electric tools when removing or installing the combination switch.
- Disconnect both the negative and positive battery terminals, then wait at least three minutes. Refer to pg- 50, "removal and installation (battery)".
- Remove the steering column covers. Refer to ip-16, "removal and installation".
- Rotate steering wheel clockwise to access first combination switch bolt and remove.
- Rotate steering wheel counter-clockwise to access second combination switch bolt and remove.
- Disconnect the harness connector from the combination switch and remove.
Installation
Installation is in the reverse order of removal.
Caution:
- After the work is completed, make sure no system malfunction is detected by air bag warning lamp.
- In case a malfunction is detected by the air bag warning lamp, reset with the self-diagnosis function and delete the memory with consult.
- If a malfunction is still detected after the above operation,
perform self-diagnosis to repair malfunctions.
Refer to src-41, "additional service when replacing control unit : special repair requirement".
Symptom diagnosis
Combination switch system symptoms
Symptom Table
Perform the data monitor of consult to check for any malfunctioning
item.
Check the malfunction combinations.
Identify the malfunct ...
Other materials:
Intake valve timing control
INTAKE VALVE TIMING CONTROL : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed and piston position
Intake valve timing
control
Intake valve timing con ...
Automatic speed control device (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD) : Switch Name and Function
SWITCHES AND INDICATORS
CRUISE indicator
SET indicator*
CANCEL switch
ACCEL/RES switch
COAST/SET switch
ASCD MAIN switch
On the combination meter
On the steering wheel
*: Not applicable
Set speed range
A ...
Abs branch line circuit
Diagnosis Procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the abs actuator and electric unit
(control unit) for damage, bend
and loose connection (unit side and connector side).
...