B2201

Description

The communication line (LCD to and from AMP.) is used to communicate signals between the combination meter and the unified meter and A/C amp. in order to control the information display.


DTC Logic


DTC DETECTION LOGIC








Diagnosis Procedure


1. CHECK CONNECTOR

Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter and A/C amp. side, and harness side) for looseness or bent.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair terminal or connector.

2. CHECK CONTINUITY COMMUNICATION CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect combination meter connector and unified meter and A/C amp. connector.
3.Check continuity between combination meter harness connector terminal and unified meter and A/C amp.
harness connector terminal.





4.Check continuity between combination meter harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair harness or connector.

3. CHECK UNIFIED METER AND A/C AMP. OUTPUT VOLTAGE

1.Connect unified meter and A/C amp. connector.
2.Turn ignition switch ON.
3.Check voltage between unified meter and A/C amp. harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Replace unified meter and A/C amp.

4. CHECK COMBINATION METER OUTPUT VOLTAGE

1.Turn ignition switch OFF.
2.Disconnect unified meter and A/C amp. connector.
3.Connect combination meter connector.
4.Turn ignition switch ON.
5.Check voltage between combination meter harness connector terminal and ground.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace combination meter.