Nissan Juke Service and Repair Manual : P0525 ASCD system
DTC Logic
DTC DETECTION LOGIC

Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF and wait at least 20 seconds.
2. Check ground connection 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 ASCD BRAKE SWITCH AND CLUTCH PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
1. Disconnect ACSD brake switch and clutch pedal position switch harness connectors.
2. Check the voltage between ACSD brake switch and clutch pedal position switch harness connectors and ground.

Is the inspection result normal? YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT AND CLUTCH PEDAL POSITION SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between ACSD brake switch harness connector and ECM harness connector.

2. Check the continuity between clutch pedal position switch harness connector and ground.

3. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ASCD BRAKE SWITCH AND CLUTCH PEDAL POSITION SWITCH
Refer to EC-959, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace ASCD brake switch or clutch pedal position switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> Replace ACSD brake switch or clutch pedal position switch.
NO >> Repair or replace.
Component Inspection
1.CHECK ASCD BRAKE SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check the continuity between ASCD brake switch terminals under the following condition.

Is the inspection result normal? YES >> GO TO 2.
NO >> Replace ASCD brake switch.
2.CHECK CLUTCH PEDAL POSITION SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect clutch pedal position switch harness connector.
3. Check the continuity between clutch pedal position switch terminals under the following condition.

the inspection result normal? YES >> INSPECTION END
NO >> Replace clutch pedal position switch.
P0504 ASCD brake SWI
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF and wait at least 20 seconds.
2. Check ground connection E38. Refer to Ground inspection ...
P0530 refrigerant pressure sensor
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit
In ...
Other materials:
P183C decel G sensor
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.
>> GO TO 2.
2.DTC REPRODUCTION PROCEDURE
With ...
Precaution
Precautions for Trouble Diagnosis
CAUTION:
• Never apply 7.0 V or more to the measurement terminal.
• Use a tester with open terminal voltage of 7.0 V or less.
• Turn the ignition switch OFF and disconnect the battery cable from the
negative terminal when
checking the harness.
Precautions fo ...
Engine maintenance (HR16DE)
Drive belt
DRIVE BELT : Checking
• Inspection should be done only when engine is cold or over 30
minutes after the engine is stopped.
1 : Alternator
2 : Water pump
3 : Crankshaft pulley
4 : A/C compressor
5 : Idler pulley
6 : Drive belt
• Visually check belts for wear, damage, and cracks ...
