Nissan Juke Service and Repair Manual : B257B, B257C ambient sensor
DTC Logic
DTC DETECTION LOGIC
NOTE
:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to HAC-
275, "DTC Logic".
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. HAC-276, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Self Diagnostic Result” mode of “PTC HEATER” using CONSULT-III.
3. Check DTC.
Is DTC detected? YES >> Refer to HAC-277, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK AMBIENT SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ambient sensor connector.
3. Turn ignition switch ON.
4. Check voltage between ambient sensor harness connector and ground.
Is the inspection result normal? YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK AMBIENT SENSOR GROUND CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect PTC heater control unit connector.
3. Check continuity between ambient sensor harness connector and A/C auto amp harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK AMBIENT SENSOR
Check ambient sensor. Refer to HAC-278, "Component Inspection".
Is the inspection result normal? YES >> Replace PTC heater control unit.
NO >> Replace ambient sensor.
4.CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect PTC heater control unit connector.
3. Check continuity between ambient sensor harness connector and PTC heater control unit harness connector.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair harness or connector.
5.CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between ambient sensor harness connector and ground.
Is the inspection result normal? YES >> Replace PTC heater control unit.
NO >> Repair harness or connector.
Component Inspection
1.CHECK AMBIENT SENSOR
1. Remove ambient sensor.
2. Check resistance between ambient sensor terminals. Refer to applicable table for the normal value.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace ambient sensor.
U1010 control unit (can)
Description Initial diagnosis of A/C auto amp. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM SELF-DIAGNOSIS With CONSULT-III 1. Turn ignition switch ON. 2. Select “Self ...Power supply and ground circuit
PTC HEATER CONTROL UNIT : Diagnosis Procedure 1.CHECK FUSE 1. Turn ignition switch OFF. 2. Check 10A fuses (No. 3 and 7). NOTE: Refer to PG-23, "Fuse and Fusible Link Arrangement". ...Other materials:
P1554 battery current sensor
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-709, "Component Function
Check".
NOTE:
Use component function check to check the overall function of the battery
current sensor circuit. D ...
Cooling fan
Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
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.CHE ...
Refrigerant pressure sensor
Component Function Check
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >& ...