Diagnosis Procedure

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 and loose connection (unit side and connector side).

      • 8CH CAN gateway

      • Data link connector

   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 8CH CAN gateway.

   2. Check the resistance between the 8CH CAN gateway harness connector terminals.

      8CH CAN gateway harness connector			Continuity
      Connector No.	Terminal No.
      M37	13	29	Existed
      	14	30	Existed

   Is the measurement value within the specification?

   YES >>

   GO TO 3.

   NO >>

   Repair the harness and repair the root cause (Diagnostic CAN communication circuit side).

3. CHECK HARNESS FOR OPEN CIRCUIT

   1. Connect the connector of 8CH CAN gateway.

   2. Check the resistance between the data link connector terminals.

      Data link connector			Resistance (Ω)
      Connector No.	Terminal No.
      M22	6	14	Approx. 54 – 66

   Is the measurement value within the specification?

   YES (Present error) >>

   Check CAN system type decision again.

   YES (Past error) >>

   Error was detected in the data link connector branch line circuit.

   NO >>

   Repair the data link connector branch line.