Nissan Altima 2007-2012 Service Manual: 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 - CVT SHIFT LOCK SYSTEM - Coupe
Wiring Diagram - CVT SHIFT LOCK SYSTEM - Sedan
Diagnosis Procedure
1. CHECK POWER SOURCE
1. Disconnect CVT device connector.
2. Turn ignition switch ON.
3. Check voltage between CVT device connector M23 terminal 6 and ground.
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 2.
2. CHECK POWER SOURCE AT STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch connector.
3. Turn ignition switch ON.
4. Check voltage between stop lamp switch connector E38 terminal 3 and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> Check the following: • Harness for short or open between fuse block (J/B) and stop lamp switch
• 10A fuse [No. 3, located in fuse block (J/B)]
3. CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Check continuity between stop lamp switch terminals 3 and 4.
Is the inspection result normal? YES >> GO TO 4.
NO >> Replace stop lamp switch. Refer to BR-17, "Exploded View".
4. CHECK HARNESS BETWEEN STOP LAMP SWITCH AND CVT DEVICE FOR OPEN
Check continuity between stop lamp switch connector E38 (A) terminal 4 and CVT device connector M23 (B) terminal 6.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair harness or connectors.
5. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between CVT device connector M23 terminal 7 and ground.
Is the inspection result normal? YES >> Replace CVT device. Refer to TM-255, "Removal and Installation".
NO >> Repair harness or connectors.
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.
...
Ecu diagnosis
TCM
Reference Value
VALUES ON THE DIAGNOSIS TOOL
* Means CVT fluid temperature. Actual oil temperature °C (°F) cannot be
checked unless a numeric value is converted. Refer to TM-237,
&q ...
Other materials:
ECU diagnosis
AIR CONDITIONER CONTROL
Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
Wiring Diagram - Air Conditioner Control (Manual)
- Coupe
Wiring Diagram - Air Conditioner Control (Manual)
- Sedan
...
P0507 ISC System
Description
The ECM controls the engine idle speed to a specified level via the fine
adjustment of the air, which is let into
the intake manifold, by operating the electric throttle control actuator. The
operating of the throttle valve is varied
to allow for optimum control of the engine idli ...
Power distribution system
System Description
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
• PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the
operation of the pushbutton
ignition switch and performs the power distribution to each power circuit. This
system is used instead
of the mechanical ...