Nissan Altima (L32) 2007-2012 Service Manual: Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
NOTE: To ensure a complete and thorough diagnosis, the battery, starter and generator test segments must be done as a set from start to finish.
1.PRELIMINARY INSPECTION
Perform the preliminary inspection. Refer to CHG-7, "Inspection Procedure".
>> GO TO 2
2.DISABLE THE POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
Disable the power generation voltage variable control with either of the following procedures.
• After selecting “ENGINE” on the “SELECT SYSTEM” screen of CONSULT-III, set the “ALTERNATOR DUTY” value to 0 % by selecting “ALTERNATOR DUTY” with “Active Test”. Continue “Active Test” until the end of inspection. (When the DUTY value is 0 or 100 %, the normal power generation is performed according to the characteristic of the IC regulator of the generator.) • Turn the ignition switch OFF, disconnect the battery current sensor connector and leave it disconnected during the course of the test.
NOTE: Running the engine with the battery current sensor disconnected will cause DTC's (P1550-P1554) to set.
After finishing the inspection, connect the battery current sensor connector and erase the self-diagnostic results history of the engine using CONSULT-III.
>> GO TO 3
3.DIAGNOSIS WITH STARTING/CHARGING SYSTEM TESTER
Perform the charging system test using Starting/Charging System Tester (J-44373). For details and operating instructions, refer to Technical Service Bulletin.
Test result
CHARGING SYSTEM NOMAL>>Charging system is normal and will also show “DIODE RIPPLE” test result.
NO CHARGING VOLTAGE>>GO TO 4
LOW CHARGING VOLTAGE>>GO TO 12
HIGH CHARGING VOLTAGE>>GO TO 14
HIGH CHARGING VOLTAGE>>GO TO 14 DIODE RIPPLE NORMAL>>Diode ripple is OK and will also show “CHARGING VOLTAGE” test result.
EXCESS RIPPLE DETECTED>>Replace the generator. Perform “DIODE RIPPLE” test again using Starting/ Charging System Tester (J-44373) to confirm repair.
DIODE RIPPLE NOT DETECTED>>GO TO 4
4.INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)
Turn the ignition switch ON.
Does the charge warning lamp illuminate? YES >> GO TO 6
NO >> GO TO 5
5.TERMINAL“2” (OPEN) CIRCUIT INSPECTION
Check terminal “2” circuit for open circuits. Refer to CHG-11, "Diagnosis Procedure".
Is the terminal “2” circuit normal? YES >> Replace generator. Refer to CHG-27, "Removal and Installation".
NO >> Repair as needed.
6.INSPECTION WITH CHARGE WARNING LAMP (IDLING)
Start the engine and run it at idle.
Does the charge warning lamp turn OFF? YES >> GO TO 9
NO >> GO TO 7
7.TERMINAL “2”(SHORT) CIRCUIT INSPECTION
Check terminal “2” circuit for short to ground. Refer to CHG-11, "Diagnosis Procedure".
Is the terminal “2” circuit normal?
YES >> GO TO 8
NO >> Repair as needed.
8.TERMINAL“3” CIRCUIT INSPECTION
Check terminal “3” circuit. Refer to CHG-12, "Diagnosis Procedure".
Is the terminal “3” circuit normal? YES >> GO TO 10
NO >> Repair as needed.
9.INSPECTION WITH CHARGE WARNING LAMP (ENGINE AT 3,000 RPM)
Increase and maintain the engine speed at 3,000 rpm.
Does the charge warning lamp remain off? YES >> GO TO 11
NO >> GO TO 10
10.INSPECTION OF GENERATOR PULLEY
Check generator pulley. Refer to CHG-29, "Inspection".
Is generator pulley normal? YES >> Replace generator. Refer to CHG-27, "Removal and Installation".
NO >> Repair as needed.
11.TERMINAL “1” CIRCUIT INSPECTION
Check terminal “1””circuit. Refer to CHG-10, "Diagnosis Procedure".
Is terminal “1” circuit normal? YES >> Replace generator. Refer to CHG-27, "Removal and Installation".
NO >> Repair as needed.
12.TERMINAL “1” CIRCUIT INSPECTION
Check terminal “1” circuit. Refer to CHG-10, "Diagnosis Procedure".
Is terminal “1” circuit normal? YES >> GO TO 13
NO >> Repair as needed.
13.INSPECTION OF GENERATOR PULLEY
Check generator pulley. Refer to CHG-29, "Inspection".
Is generator pulley normal? YES >> Replace generator. Refer to CHG-27, "Removal and Installation".
NO >> Repair as needed.
14.TERMINAL “3” CIRCUIT INSPECTION
Check terminal “3” circuit. Refer to CHG-12, "Diagnosis Procedure".
Is the terminal “3” circuit normal? YES >> Replace generator. Refer to CHG-27, "Removal and Installation".
NO >> Repair as needed.
Charging system
...Other materials:
How to use the vehicle information display
The vehicle information display can be changed
using the buttons and ENTER located
on
the steering wheel.
1. — navigate through the items in
vehicle
information
ENTER — change or select an item in the
vehicle information display
2. — go back to the previous menu
3. ...
P0144 HO2S3
Description
The heated oxygen sensor 3, after HC adsorption catalyst (Under
floor), monitors the oxygen level in the exhaust gas on each bank.
This sensor is made of ceramic zirconia. The zirconia generates voltage
from approximately 1V in richer conditions to 0V in leaner conditions.
Unde ...
Sonar limitations
WARNING
Listed below are the system limitations
for the sonar system. Failure to operate
the vehicle in accordance with these
system limitations could result in serious
injury or death.
The system is deactivated at speeds
above 6 mph (10 km/h). It is reactivated
at lower speeds.
Inclement weath ...