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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 connectors.
    • A/C amp.
    • Harness connectors M31 and E152
  4. Check the continuity between the A/C amp. harness connector and the harness connector.
    A/C amp. harness connectorHarness connectorContinuity
    Connector No.Terminal No.Connector No.Terminal No.
    M5550M3150JExisted
    7049JExisted
Is the inspection result normal?
(Present error)Check CAN system type decision again.
(Past error)Error was detected in the main line between the A/C amp. and the air bag diagnosis sensor unit.
Repair the main line between the A/C amp. and the air bag diagnosis sensor unit harness connector.