Nissan Altima 2007-2012 Service Manual: Steering switch
Description
When one of the steering wheel audio control switches is pushed, the resistance in the steering switch circuit changes depending on which button is pushed.
Diagnosis Procedure
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M46 and spiral cable connector M30.
3. Check continuity between AV control unit connector M46 terminals 25, 26, and 27 and spiral cable connector M30 terminals 24, 31, and 33.
4. Check continuity between AV control unit connector M46 (A) and ground.
Are the continuity test results as specified? YES >> GO TO 2
NO >> Repair harness.
2.SPIRAL CABLE CHECK
1. Disconnect spiral cable connector M88.
2. Check continuity between spiral cable harness connector M30 and M88.
Are the continuity test results as specified? YES >> GO TO 3.
NO >> Replace spiral cable. Refer to SR-8, "Removal and Installation".
3.CHECK STEERING SWITCH
Check steering switch. Refer to AV-355, "Component Inspection".
Does the steering switch pass inspection? YES >> INSPECTION END.
NO >> Replace steering switch. Refer to AV-448, "Removal and Installation".
Component Inspection
Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.
Standard
AMP On signal circuit
Description When the audio system is turned on, a voltage signal is supplied from the AV control unit to the BOSE speaker amp. When this signal is received, the BOSE speaker amp. will turn on. Di ...Microphone signal circuit
Description Power is supplied to the microphone from the AV control unit. The microphone transmits voice signals to the AV control unit. Diagnosis Procedure 1.CHECK CONTINUITY BETWEEN AV CONTRO ...Other materials:
B2606 steering lock relay
Description
The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN
communication.
IPDM E/R turns the steering lock relay ON and transmits the release of the
steering to BCM.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2606 is displayed with DTC U1000, first per ...
B1017 – b1022 occupant classification
system
Description
DTC B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM (OCS)
The occupant classification system control unit is wired to the air bag
diagnosis sensor unit. The air bag diagnosis
sensor unit will monitor the occupant classification system for control unit and
sensor mat failures and
...
Car phone or CB radio
When installing a CB, ham radio or car phone in
your vehicle, be sure to observe the following
precautions; otherwise, the new equipment may
adversely affect the engine control system and
other electronic parts.
WARNING
● A cellular phone should not be used for
any purpose while driving ...