Nissan Juke Service and Repair Manual : BCM 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 BCM 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 BCM.
2. Check the resistance between the BCM harness connector terminals.
- Models with Intelligent Key system
- Models without Intelligent Key system
Is the measurement value within the specification? YES >> GO TO 3.
NO >> Repair the BCM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the BCM. Refer to the following.
• Models with Intelligent Key system: BCS-87, "Diagnosis Procedure" • Models without Intelligent Key system: BCS-155, "Diagnosis Procedure"
Is the inspection result normal? YES (Present error)>>Replace the BCM. Refer to the following.
• Models with Intelligent Key system: BCS-93, "Removal and Installation" • Models without Intelligent Key system: BCS-161, "Removal and Installation"
YES (Past error)>>Error was detected in the BCM branch line.
NO >> Repair the power supply and the ground circuit.
PTC 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 PTC heater control u ...Can communication circuit
Diagnosis Procedure 1.CONNECTOR INSPECTION 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Disconnect all the unit connectors on CAN communication s ...Other materials:
Key warning lamp
Component Function Check
1.CHECK FUNCTION
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2. Select “INDICATOR” in “ACTIVE TEST” mode.
3. Check that the function operates normally according to the following
conditions.
Is the inspection result normal?
YES >> Key warning lamp ...
B2193 chain of ECM-IMMU
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to
BCS-153, "DTC Logic".
• If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis
for DTC U1010. Refer to
BCS-154, " ...
Models without Intelligent Key system
1. Apply the parking brake.
2. Continuously Variable Transmission (CVT) models:
Move the shift lever to the P (Park) or N (Neutral) position. (P is recommended.)
The starter is designed so that it does not operate unless the shift lever is in
either of the above positions.
Manual Transmission ...