Nissan Altima 2007-2012 Service Manual: Shift position indicator circuit

Description

• TCM sends position indicator signals to combination meter by CAN communication line.

• Manual mode switch position is indicated on shift position indicator.

Component Function Check

1.CHECK SHIFT POSITION INDICATOR

CAUTION: Always drive vehicle at a safe speed.

1. Start engine.

2. Check if correct selector lever position (“P”, “N”, “R” or “D”) is displayed as selector lever is moved into each position.

3. Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the position mutually coincide when selector lever is shifted to the “UP (+ side)” or “DOWN (− side)” side (1st ⇔ 6th gear).

Is the inspection result normal? YES >> INSPECTION END

NO >> Go to TM-366, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK INPUT SIGNALS

1. Start engine.

2. Check if correct selector lever position (“P”, “N”, “R” or “D”) is displayed as selector lever is moved into each position.

3. Select “RANGE” on “DATA MONITOR” and read out the value.

4. Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the position mutually coincide when selector lever is shifted to the “UP (+ side)” or “DOWN (− side)” side (1st ⇔ 6th gear).

Is the inspection result normal? YES >> INSPECTION END

NO-1 >> The actual gear position does not change, or shifting into the manual mode is not possible (no gear shifting in the manual mode possible). Or the shift position indicator is not indicated.

• Check manual mode switch. Refer to TM-340, "Component Inspection (Manual Mode Switch)".

• Check CVT main system (Fail-safe function actuated).

- Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.

NO-2 >> The actual gear position changes, but the shift position indicator is not indicated.

• Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.

NO-3 >> The actual gear position and the indication on the shift position indicator do not coincide.

• Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.

NO-4 >> Only a specific position or positions is/are not indicated on the shift position indicator.

• Check combination meter. Refer to MWI-38, "CONSULT-III Function (METER/M&A)".

    P1778 step motor - function
    Description • The step motor's 4 aspects of ON/OFF change according to the signal from TCM. As a result, the flow of line pressure to primary pulley is changed and pulley ratio is controlled. ...

    Shift lock system
    Description The selector lever cannot be shifted from “P” position to any other position unless the ignition switch is in the ON position and the brake pedal is depressed. Wiring Diagram - C ...

    Other materials:

    Center speaker
    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 center speaker using the audio signal circuits. Diagnosis Procedure 1.HARNESS CHECK 1. Disconnect BOSE speaker amp. connector B121 and center ...

    How to adjust the screen (if so equipped)
    settings, press the SETTING button while the RearView Monitor screen is displayed. Each time the SETTING button is pressed, the next setting item is selected. Turn the TUNE·SCROLL/TUNE·FOLDER control knob to adjust each item. Available setting items: ● Brightness ● Contrast &# ...

    On-vehicle repair
    IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) Removal and Installation REMOVAL 1. Disconnect the battery negative terminal. 2. Remove the IPDM E/R cover (1) while pressing the pawl (A) at the rear end of the IPDM E/R cover (1). 3. Disconnect the harness connectors from the ...