System Trouble Shooting
In order to trouble shoot the instrument cluster on Camry and Supra models, Toyota recommends using Digital Meter Check Sub-Harness (09082-00100). See Fig 1, Fig 2, and Fig 5 . The harness fits in-line between the body harness and instrument cluster.
Cressida, Pickup and 4Runner models may be checked without using the special harness. See Fig 3 and Fig 4 .