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-67, "System Description" for the ASCD function.
Component Function Check
1.ASCD INDICATOR FUNCTION
Check ASCD indicator under the following conditions.
Is the inspection result normal? YES >> INSPECTION END
NO >> Go to EC-1472, "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 EC-1179, "Diagnosis Procedure".
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 those two types of input (ON/OFF
s ...
Cooling fan
Description
The ECM controls the cooling fan corresponding to the vehicle speed, engine
coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 4-step cont ...
Other materials:
Measurement of weights
Secure loose items to prevent weight
shifts that could affect the balance of your
vehicle. When the vehicle is loaded, drive
to a scale and weigh the front and the rear
wheels separately to determine axle
loads. Individual axle loads should not exceed
either of the gross axle weight ratings
( ...
P0075, P0081 IVT control solenoid
valve
Description
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow via the intake valve timing control unit
or stops oil flow.
The longer pulse w ...
Brake fluid
Draining
DRAINING
CAUTION:
• Be careful not to splash brake fluid on painted areas; it may cause
paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Before working, disconnect connectors of ABS actuator and electric unit
(control unit) or ...