Nissan Juke Service and Repair 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 10 V 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-686, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E21 and E38. Refer to Ground Inspection in GI-44, "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.

*1: LHD models or RHD models with CVT *2: RHD models with M/T
Is the inspection result normal? YES >> GO TO 7.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUIT
Check harness for short to power and short to ground, between the following terminals.

*1: LHD models or RHD models with CVT *2: RHD models with M/T
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to EC-662, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace camshaft position sensor (PHASE).
5.CHECK THROTTLE POSITION SENSOR
Refer to EC-646, "Component Inspection".
Is the inspection result normal? YES >> GO TO 9.
NO >> GO TO 6.
6.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Replace electric throttle control actuator. Refer to EM-163, "Exploded View".
>> INSPECTION END
7.CHECK APP SENSOR
Refer to EC-749, "Component Inspection".
Is the inspection result normal? YES >> GO TO 9.
NO >> GO TO 8.
8.REPLACE ACCELERATOR PEDAL ASSEMBLY
Replace accelerator pedal assembly. Refer to ACC-3, "Exploded View".
>> INSPECTION END
9.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> INSPECTION END
P0607 ECM
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC.
Is DTC detected?
YES >> Proceed to EC-685, &quo ...
P0850 PNP switch
Description
When the selector lever position is P or N (CVT), Neutral position (M/T),
park/neutral position (PNP) signal is
ON.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.INS ...
Other materials:
Multi display unit
Reference Value
VALUES ON THE DIAGNOSIS TOOL
• *1:MR16DDT
• *2: This is not used to determine ON/OFF of the indicator lamp.
TERMINAL LAYOUT
PHYSICAL VALUES
DTC Inspection Priority Chart
When multiple DTCs are displayed simultaneously, check one by one according
to the following ...
Refrigeration system symptoms
Trouble Diagnosis For Unusual Pressure
Diagnose using a manifold gauge whenever system’s high and/or low side
pressure(s) is/are unusual. The
marker above the gauge scale in the following tables indicates the standard
(usual) pressure range. Refer to
above table (Ambient air temperature-to- ...
Starting system (with intelligent key)
CVT : Wiring Diagram
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to GI-12, "Connector Information/Explanation
of Option Abbreviation".
M/T : Wiring Diagram
For connector terminal arrangem ...
