Nissan Altima (L32) 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:
Ambient sensor
Description
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor (1) is attached on the front bumper reinforcement.
It detects ambient temperature and converts it into a resistance
value which is then input into the front air control.
AMBIENT TEMPERATURE INPUT PROCESS
The automatic am ...
S connector circuit
Description
The starter motor magnetic switch is supplied with power when the ignition
switch is turned to the START position
while the selector lever is in the P or N position (CVT models) or the clutch
pedal is fully depressed (M/T
models).
Diagnosis Procedure
CAUTION:
Perform diagnosis ...
P0116 ect sensor
Description
The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine coolant
temperature input. The sensor uses a thermistor which is sensitive to
the change i ...
