TSX L4-2.4L (2005)
5. Reconnect the connectors to the under-dash fuse/relay box, turn the ignition switch ON (II), and make sure these input tests at the appropriate
connectors on the under-dash fuse/relay box.
-
If any test indicates a problem, find and correct the cause, then recheck the system.
-
If all the input tests prove OK, go to step 6.
6. Perform the Gauge Self-diagnostic Procedure.
-
If the indicators flash, go to step 7.
-
If the indicators do not flash, replace the gauge control module.
7. Substitute a known-good under-dash fuse/relay box and recheck the system.
-
If the symptom is gone, the multiplex integrated control unit (MICU) is faulty; replace the under-dash fuse/relay box.
-
If the symptom is still present, the gauge control module must be faulty; replace the gauge control module.
