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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 multi-around monitor control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
.
Repair the terminal and connector.
 
2.CHECK HARNESS FOR OPEN CIRCUIT
  1. Disconnect the connector of multi-around monitor control unit.
  2. Check the resistance between the multi-around monitor control unit harness connector terminals.
    Multi-around monitor control unit harness connectorResistance (Ω)
    Connector No.Terminal No.
    B75320Approx. 54 – 66
Is the measurement value within the specification?
.
Repair the multi-around monitor control unit branch line.
 
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the multi-around monitor control unit. Refer to Diagnosis Procedure.
Is the inspection result normal?
(Present error)Replace the multi-around monitor control unit. Refer to Removal and Installation.
(Past error)Error was detected in the multi-around monitor control unit branch line.
Repair the power supply and the ground circuit.