Nissan Maxima Service and Repair Manual: 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 signal).
Refer to EC-68, "System Diagram" for the ASCD function.
Component Function Check
1.CHECK ASCD BRAKE SWITCH FUNCTION
With CONSULT
- Turn ignition switch ON.
- Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT.
- Check "BRAKE SW1" indication under the following conditions.
Without CONSULT
- Turn ignition switch ON.
- Check the voltage between ECM harness connectors
Diagnosis Procedure
1.CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ASCD brake switch harness connector.
- Turn ignition switch ON.
- Check the voltage between ASCD brake switch harness connector and ground.
2.DETECT MALFUNCTIONING PART
Check the following.
- Fuse block (J/B) connector E6
- Junction block connectors E44, E46
- 10 A fuse (No. 3)
- Harness for open or short between ASCD brake switch and fuse
3.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between ASCD brake switch harness connector and ECM harness connector.
- Also check harness for short to ground and short to power.
4.DETECT MALFUNCTIONING PART
Check the following.
- Junction block connectors E45, E46
- Harness for open or short between ASCD brake switch and ECM
5.CHECK ASCD BRAKE SWITCH
6.CHECK INTERMITTENT INCIDENT
Component Inspection (ASCD Brake Switch)
1.CHECK ASCD BRAKE SWITCH-I
- Turn ignition switch OFF.
- Disconnect ASCD brake switch harness connector.
- Check the continuity between ASCD brake switch terminals under the following conditions.
2.CHECK ASCD BRAKE SWITCH-II
- Adjust ASCD brake switch installation. Refer to BR-14, "Inspection and Adjustment".
- Check the continuity between ASCD brake switch terminals under the following conditions
P2138 APP sensor
Description
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelerator
position and sends a signal to the ECM.
Ac ...
ASCD indicator
Description
ASCD indicator lamp illuminates to indicate ASCD operation status. CRUISE is
integrated in combination
meter.
CRUISE illuminates when MAIN switch on ASCD steering switch is turned ...
Other materials:
P0746 pressure control solenoid A
Description
The line pressure solenoid valve regulates the oil pump discharge pressure to
suit the driving condition in
response to a signal sent from the TCM.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately af ...
Seats
WARNING
Do not ride in a moving vehicle when
the seatback is reclined. This can be
dangerous. The shoulder belt will not
be against your body. In an accident,
you could be thrown into it and receive
neck or other serious injuries. You
could also slide under the lap belt and
recei ...
Front sunroof glass
Removal and Installation
REMOVAL
Remove the wind deflector. Refer to RF-168, "Removal and
Installation".
Tape down the glass lid weatherstrip along the from sunroof glass
with protective tape.
Apply protective tape around the front sunroof glass to protect
the surface from damage.
...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
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