Nissan Altima 2007-2012 Service Manual: Key slot illumination
Description
Blinks when keyfob insertion is required.
Component Function Check
1.CHECK FUNCTION
Check key slot illumination (“KEY SLOT ILLUMI”) Active Test mode.
Is the inspection result normal? YES >> Key slot function is OK.
NO >> Refer to SEC-505, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL
Check voltage between key slot connector and ground.
Is the inspection result normal? YES >> GO TO 6
NO >> GO TO 2
2.CHECK KEY SLOT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between slot connector and ground.
Is the inspection result normal? YES >> GO TO 3
NO >> Repair or replace key slot power supply circuit.
3.CHECK KEY SLOT GROUND CIRCUIT
Check continuity between key slot connector and ground.
Is the inspection result normal? YES >> GO TO 4
NO >> Repair or replace key slot ground circuit.
4.CHECK KEY SLOT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM and key slot connector.
3. Check continuity between BCM connector and key slot connector.
4. Check continuity between BCM connector and ground.
Is the inspection result normal? YES >> GO TO 5 NO >> Repair or replace harness between BCM and key slot.
5.CHECK KEY SLOT
Refer to SEC-505, "Description".
Is the inspection result normal? YES >> GO TO 6
NO >> Replace key slot. Refer to SEC-596, "Removal and Installation".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> Inspection End.
Key slot
Diagnosis Procedure
1.CHECK KEY SLOT POWER SUPPLY CIRCUI
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between slot connector and ground.
Is the inspecti ...
Key cylinder switch
Description
For vehicles equipped with LH and RH anti-pinch system, the main power window
and door lock/unlock switch
detects condition of the door key cylinder switch and transmits to BCM as the ...
Other materials:
B terminal circuit
Description
The “B” terminal is constantly supplied with battery power.
Diagnosis Procedure
CAUTION:
Perform diagnosis under the condition that the engine cannot start by the
following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel p ...
Precaution
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
dr ...
P0420, P0430 Three way catalyst function
DTC Logic
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage c ...