Nissan Altima 2007-2012 Service Manual: L Terminal circuit
Description
The terminal “2” (L) circuit controls the charge warning lamp. The charge warning lamp illuminates when the ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine running, the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a malfunction is indicated.
Diagnosis Procedure
1.CHECK CHARGE WARNING LAMP CIRCUIT CONNECTION
Check to see if generator connector F7 terminal 2 is clean and tight.
Is the connection secure? YES >> GO TO 2
NO >> Repair the connection. Confirm repair by performing complete Starting/Charging system test.
Refer to Technical Service Bulletin.
2.CHECK CHARGE WARNING LAMP CIRCUIT
1. Disconnect generator connector F7.
2. Apply ground to generator harness connector F7 terminal 2 with the ignition switch in the ON position.
Does it illuminate? YES >> Check generator function. Refer to CHG-2, "Work Flow".
NO >> GO TO 3
3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect the generator connector F7.
3. Disconnect the combination meter connector M24.
4. Check continuity between generator harness connector F7 (A) terminal 2 and combination meter harness connector M24 (B) terminal 25.
Is continuity present? YES >> Replace the combination meter. Refer to MWI-176, "Removal and Installation".
NO >> Repair the harness or connector.
B Terminal circuit
Description
The terminal “1” (B) circuit supplies power to charge the battery and operate
the vehicles electrical system.
Diagnosis Procedure
1.CHECK TERMINAL “1” CONNECTION
1. Turn ign ...
S Terminal circuit
Description
The output voltage of the generator is controlled by the IC regulator at
terminal “3” (S) detecting the input voltage.
Terminal “3” circuit detects the battery voltage to adj ...
Other materials:
P0300, P0301, P0302, P0303, P0304 Misfire
DTC Logic
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
The misfire detection logic consists of the following ...
Basic inspection
COMPONENT INSPECTION
Inspection
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware
after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a
collision be replaced
unless the collision was minor and t ...
Compression pressure
On-Vehicle Service
CHECKING COMPRESSION PRESSURE
1. Run the engine until it reaches normal operating temperature.
2. Turn the ignition switch to OFF.
3. Release fuel pressure and leave the fuel pump electrically disconnected.
Refer to EC-1579, "Inspection".
4. Remove all six ...