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 ...

    Other materials:

    B2606 steering lock relay
    Description The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication. IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B2606 is displayed with DTC U1000, first per ...

    B260A ignition relay
    Description BCM turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned ON. • Ignition relay-1 (inside IPDM E/R) • Ignition relay-2 (inside fuse box) • Blower fan motor relay BCM checks any ignition relay ON request for consistency with ...

    P2122, P2123 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. Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometers which tr ...