Nissan Altima 2007-2012 Service Manual: ASCD Indicator
Description
The ASCD operation status is indicated by two indicators, (CRUISE and SET on the information display) on the combination meter.
CRUISE indicator is displayed to indicate that ASCD system is ready for operation when MAIN switch on ASCD steering switch is turned ON.
SET indicator is displayed when the following conditions are met.
• CRUISE indicator is displayed.
• SET/COAST switch on ASCD steering switch is turned ON while vehicle speed is within the range of ASCD setting.
SET indicator is displayed during ASCD control.
Refer to EC-603, "System Description" for the ASCD function.
Component Function Check
1.ASCD INDICATOR FUNCTION
Is the inspection result normal? YES >> INSPECTION END
NO >> Go to EC-948, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK DTC
Check that DTC UXXXX is not displayed.
Is the inspection result normal? YES >> GO TO 2.
NO >> Perform trouble diagnosis for DTC UXXXX.
2.CHECK COMBINATION METER OPERATION
Refer to MWI-38, "CONSULT-III Function (METER/M&A)".
Is the inspection result normal? YES >> GO TO 3.
NO >> Check combination meter circuit. Refer to MWI-5, "METER SYSTEM : System Diagram".
3.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> INSPECTION END
ASCD Brake switch
Description
When the brake pedal is depressed, ASCD brake switch is turned OFF and stop
lamp switch is turned ON.
ECM detects the state of the brake pedal by this input of two kinds (ON/OFF
s ...
Cooling fan
Description
The ECM controls the cooling fan corresponding to the vehicle speed, engine
colant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 4-step cont ...
Other materials:
U1210 DVD-ROM seek
Description
Refer to AV-240, "System Description".
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK DVD-ROM
Check DVD-ROM for dirt, scratches and warpage.
Is the DVD-ROM clean and undamaged?
YES >> Replace AV control unit. Refer to AV-437, "Removal and I ...
Relay control system
System Diagram
System Description
IPDM E/R activates the internal control circuit to perform the relay ON-OFF
control according to the input signals
from various sensors and the request signals received from control units via CAN
communication.
CAUTION:
IPDM E/R integrated relays cannot ...
Driver side
Description
Door glass moves UP/DOWN by receiving the signal from main power window and
door lock/unlock switch.
Component Function Check
1. CHECK POWER WINDOW MOTOR CIRCUIT
Does power window motor LH operate with operating main power window and door
lock/unlock switch?
Is the inspection ...