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Home >> Infiniti >> 2009 >> M35 V6-3.5L (VQ35HR) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> I-Key Branch Line Circuit >> CAN
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CAN





I-KEY BRANCH LINE CIRCUIT


Diagnosis Procedure

INSPECTION 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 Intelligent Key unit 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 Intelligent Key unit.
2. Check the resistance between the Intelligent Key unit harness connector terminals.





Is the measurement value within the specification?
YES - GO TO 3.
NO - Repair the Intelligent Key unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the Intelligent Key unit. Refer to Check Power Supply and Ground Circuit.
Is the inspection result normal?
YES (Present error) Replace the Intelligent Key unit. Refer to Service and Repair.
YES (Past error) Error was detected in the Intelligent Key unit branch line.
NO - Repair the power supply and the ground circuit.
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