Nissan Altima (L32) 2007-2012 Service Manual: P0643 Sensor power supply
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 8V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected? YES >> Go to EC-362, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in GI-45, "Circuit Inspection".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal? YES >> GO TO 7.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK COMPONENTS
Check the following.
• Battery current sensor (Refer to EC-380, "Component Inspection".) • Power steering pressure sensor (Refer to EC-355, "Component Inspection".) • Camshaft position sensor (PHASE) (Refer to EC-284, "Component Inspection".) Is the inspection result normal? YES >> GO TO 5.
NO >> Replace malfunctioning component.
5.CHECK TP SENSOR
Refer to EC-191, "Component Inspection".
Is the inspection result normal? YES >> GO TO 9.
NO >> GO TO 6.
6.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Go to EC-29, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement".
>> INSPECTION END
7.CHECK APP SENSOR
Refer to EC-429, "Component Inspection".
Is the inspection result normal? YES >> GO TO 9.
NO >> GO TO 8.
8.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Go to EC-29, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement".
>> INSPECTION END
9.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> INSPECTION END
P0607 ECM
Description CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excelle ...P0850 PNP Switch
Description When the shift lever position is P or N (CVT), Neutral position (M/T), park/neutral position (PNP) switch is ON. ECM detects the position because the continuity of the line (the ON s ...Other materials:
Memory seat (if so equipped)
The memory seat system has three features:
Memory storage function (Key-link)
Memory storage function (Switch)
Entry/exit function
Key-link, when enabled, automatically retains
the driver’s last seat and outside mirror
position for that specific key when the
ignition is turned from ON to OFF. ...
B1129 – B1132 side airbag module RH
Description
DTC B1129 – B1132 FRONT RH SIDE AIR BAG MODULE
The front RH side air bag module is wired to the air bag diagnosis sensor
unit. The air bag diagnosis sensor
unit will monitor for opens and shorts in detected lines to the front RH side
air bag module.
PART LOCATION
Refer to SRC- ...
Forward-facing child restraint
installation using the seat belts
WARNING
The three-point seat belt with Automatic
Locking Retractor (ALR) must be
used when installing a child restraint.
Failure to use the ALR mode will result
in the child restraint not being properly
secured. The restraint could tip over or
be loose and cause injury to a child in a
sudden stop o ...