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:
Basic inspection
COMPONENT INSPECTION
Inspection
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware
after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a
collision be replaced
unless the collision was minor and t ...
P1726 electric throttle control system
Description
Electric throttle control actuator consists of throttle control motor,
accelerator pedal position sensor, throttle
position sensor etc. The actuator sends a signal to the ECM, and ECM sends the
signal to TCM with CAN
communication.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMAT ...
Ground
Ground Distribution
MAIN HARNESS
ENGINE ROOM HARNESS
FRONT END MODULE HARNESS
ENGINE CONTROL HARNESS
BODY HARNESS
BODY NO. 2 HARNESS
HARNESS
Harness Layout
HOW TO READ HARNESS LAYOUT
The following Harness Layouts use a map style grid to help locate
connectors on the drawi ...