Nissan Juke Service and Repair Manual : ECM branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ECM for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ECM.
2. Check the resistance between the ECM harness connector terminals.
- HR16DE models
- MR16DDT models
- K9K models
Is the measurement value within the specification? YES >> GO TO 3.
NO >> Repair the ECM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to the following.
• HR16DE: EC-566, "Diagnosis Procedure" • MR16DDT: EC-155, "Diagnosis Procedure" • K9K: EC-885, "Diagnosis Procedure"
Is the inspection result normal? YES (Present error)>>Replace the ECM. Refer to the following.
• HR16DE: EC-805, "Removal and Installation" • MR16DDT: EC-447, "Removal and Installation" • K9K: EC-879, "Work Procedure"
YES (Past error)>>Error was detected in the ECM branch line.
NO >> Repair the power supply and the ground circuit.
Main line betweeN DLC and MDU circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the following harness conne ...
4WD branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend ...
Other materials:
Parts Requiring Angle Tightening
• Use the angle wrench [SST: KV10112100] for the final tightening of the
following engine parts:
- Cylinder head bolts
- Lower cylinder block bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No the angle wrench is required as bolt flange is
provided with notches for angle
tighteni ...
Turbocharger boost control
Turbocharger boost control : SystemDiagram
Turbocharger boost control : System Description
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
Depending on driving conditions, the ECM performs ON/OFF duty control of the
turbocharger boost control
solenoid valve and controls the boost by adjustin ...
Operating tips (for automatic air conditioner)
• When the engine coolant temperature and outside air temperature are low, the
air flow from the foot outlets may not operate. This is not a malfunction. After
the coolant temperature warms up, air will flow normally from the foot outlets.
• The automatic air conditioner is equipped with se ...
