DISP Branch Line Circuit

DISP 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 display control 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 display control unit.
2.Check the resistance between the display control unit harness connector terminals.





Is the measurement value within the specification?
YES- GO TO 3.
NO- Repair the display control unit branch line.

3. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the display control unit. Display Control Unit.
Is the inspection result normal?
YES (Present error)-Replace the display control unit. Service and Repair
YES (Past error)-Error was detected in the display control unit branch line.
NO- Repair the power supply and the ground circuit.