Nissan Altima 2007-2012 Service Manual: On-vehicle repair
ACCELERATOR CONTROL SYSTEM
Exploded View
1. Accelerator pedal and accelerator position sensor assembly.
2. Locating pins
Removal and Installation
REMOVAL
1. Disconnect the battery negative terminal.
2. Disconnect the accelerator position sensor electrical connector.
3. Remove the three accelerator pedal nuts.
4. Remove the accelerator pedal and accelerator position sensor assembly.
• For electrical inspection of the accelerator pedal position sensor. Refer to EC-429, "Component Inspection" (QR25DE for California), EC-938, "Component Inspection" (QR25DE Except for Calfornia), EC- 1461, "Component Inspection" (VQ35DE).
CAUTION: • Do not disassemble the pedal assembly. Do not remove the accelerator pedal position sensor from the pedal assembly.
• Avoid impact from dropping during handling.
• Keep the pedal assembly away from water.
INSTALLATION
Installation is in the reverse order of removal.
• Align and install accelerator pedal and accelerator position sensor assembly with locating pins in locating pin holes.
• Check the accelerator pedal for smooth operation. There should be no binding or sticking when applying or releasing the accelerator pedal.
• Check that the accelerator pedal moves through the full specified distance of pedal travel.
CAUTION: When the harness connector of the accelerator pedal position sensor is disconnected, perform the “Accelerator pedal released position learning”. Refer to EC-29, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement" (QR25DE for California), EC-565, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement" (QR25DE except for California), EC-1053, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement" (VQ35DE).
Precaution
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ...
Service data and specifications
(SDS)
Accelerator Control
PEDAL TRAVEL
...
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Description
Throttle Valve Closed Position Learning is a function of ECM to learn the
fully closed position of the throttle
valve by monitoring the throttle position sensor output signal. It must be
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P0455 evap control system
DTC Logic
DTC DETECTION LOGIC
This diagnosis detects a very large leak (fuel filler cap fell off etc.) in
EVAP system between the fuel tank and
EVAP canister purge volume control solenoid valve.
CAUTION:
• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect
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Subwoofer (coupe)
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio
signals before sending them to the subwoofers using the audio signal circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B122 and suspect
re ...