Nissan Sentra Service Manual: Removal and installation
Ecm
Exploded View
- ECM bracket
- ECM
- Engine mounting insulator bracket
Removal and Installation
CAUTION:
Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to EC-135, "Work Procedure".
REMOVAL
- Remove battery. Refer to PG-50, "Removal and Installation (Battery)".
- Disconnect ECM harness connectors. Refer to PG-42, "Description".
- Remove the fuse box bracket from the ECM bracket.
- Remove the ECM bracket from the engine mounting LH, together with ECM.
- Remove ECM mounting nuts, and then remove ECM.
INSTALLATION
Install in the reverse order of removal.
Positive crankcase ventilation
Inspection
1.CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be fel ...
Service data and specifications (SDS)
Idle speed
*: Under the following conditions
A/C switch: OFF
Electric load: OFF (Lights, heater fan & rear window defogger)
Steering wheel: Kept in straight-ahead position
Ignition ...
Other materials:
Brake booster
Inspection
Operation
Depress the brake pedal several times at five second intervals with
the engine stopped. Start the engine with the brake pedal fully
depressed. Check that the clearance between brake pedal and dash
lower panel decreases.
NOTE:
A slight impact with a small click may be felt ...
Main line between dlc and hvac circuit
Diagnosis Procedure
1.Check harness continuity (open circuit)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
Ecm
A/c auto amp.
Check the continuity between the data link connector and the a/c ...
C1142 Press sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1142
PRESS SEN CIRCUIT
When a malfunction is detected in master cylinder
pressure sensor.
Stop lamp switch system
ABS actuator and electric unit
(co ...
