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:
Engine cooling system
The engine cooling system is filled at the factory
with a pre-diluted mixture of 50% Genuine
NISSAN Engine Coolant (blue) and 50% water
to provide year-round anti-freeze and coolant
protection. The anti-freeze solution contains rust
and corrosion inhibitors. Additional engine cooling
system ad ...
BCM
Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuse or fusible link are blown.
Is the fuse or fusible link blown?
YES >> Replace the blown fuse or fusible link after repairing the affected
circuit.
NO >> GO TO 2
2. CHECK POWER SUPPLY CIRCUIT
1 ...
Both side front fog lamps are not
turned on
Description
The front fog lamps do not turn ON in any setting.
Diagnosis Procedure
1.COMBINATION SWITCH INSPECTION
Check the combination switch. Refer to BCS-10, "System Description".
Is the combination switch normal?
YES >> GO TO 2
NO >> Repair or replace the malfunc ...