Nissan Altima 2007-2012 Service Manual: U124C CD changer
Description
Refer to AV-240, "System Description".
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK CD CHANGER POWER SUPPLY AND GROUND CIRCUIT
Check CD changer power supply and ground circuit. Refer to AV-318, "CD CHANGER : Diagnosis Procedure".
Do power and ground check OK? YES >> GO TO 2
NO >> Repair power supply or ground circuit.
2.CHECK COMMUNICATION CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect CD changer connector M42 and AV control unit connector M48.
3. Check continuity between CD changer harness connector M42 (A) terminals 8, 9 and 10 and AV control unit harness connector M48 (B) terminals 69, 70 and 72.
4. Check continuity between CD changer harness connector M42 (A) terminals 8, 9, 10 and ground.
Are the continuity test results as specified? YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK REQUEST SIGNAL
1. Connect CD changer connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between CD changer harness connector M42 terminal 8 and ground.
Are the voltage readings as specified? YES >> GO TO 4
NO >> Replace CD changer. Refer to AV-439, "Removal and Installation".
4.CHECK COMMUNICATION SIGNAL
Check signal between CD changer harness connector M42 terminal 9 and ground.
Are the voltage readings as specified? YES >> GO TO 5
NO >> Replace CD changer. Refer to AV-439, "Removal and Installation".
5.CHECK COMMUNICATION SIGNAL
Check signal between CD changer harness connector M42 terminal 10 and ground.
Are the voltage readings as specified? YES >> Inspection End.
NO >> Replace AV control unit. Refer to AV-437, "Removal and Installation".
U1244 GPS antenna
Description Refer to AV-240, "System Description". DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.GPS ANTENNA CHECK Inspect GPS antenna and antenna feeder for damage or po ...Other materials:
P0137, P0157 HO2S2
Description
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the air fuel ratio (A/F) sensor 1
are shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from t ...
Symptom diagnosis
SRS AIR BAG SYSTEM
"AIR BAG" Warning Lamp Does Not Turn Off
DIAGNOSTIC PROCEDURE 7
1.CHECK CONDITION OF AIR BAG MODULE
Inspect for any deployed air bag modules or seat belt pre-tensioners.
Are any air bag modules or seat belt pre-tensioners deployed?
YES >> Refer to SR-20, ...
Precaution
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
driver and front ...