Nissan Altima (L32) 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:
RearView Monitor (if so equipped)
When the shift lever is shifted into the R (Reverse)
position, the monitor display shows the
view to the rear of the vehicle.
The system is designed as an aid to the driver in
detecting large stationary objects to help avoid
damaging the vehicle. The system will not detect
small objects belo ...
P1715 input speed sensor (primary
speed sensor)
Description
ECM receives primary speed sensor signal from TCM through CAN communication
line. ECM uses this signal
for engine control.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC P1715 is displayed with DTC UXXXX, first perform the trouble diagnosis
for DTC UXXXX.
• If DTC P1715 is ...
Power supply and ground circuit for front air control
Description
COMPONENT DESCRIPTION
FRONT AIR CONTROL
The front air control has a built-in microcomputer which processes
information sent from various sensors needed for air conditioner
operation. The air mix door motors, mode door motor, intake door
motor, blower motor and compressor are then c ...