FixVault

Check Clock System Communication Circuit

WARNING: This page is about a different car, the 2008 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK THE HARNESS BETWEEN CLOCK AND COMBINATION METER. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the harness connector of the clock and the combination meter.
  3. Measure the resistance between the harness connector of the clock and the combination meter.

Connector & terminal 

(i59) No. 5 - (i10) No. 29: 

Is resistance less than 10 Ω? Replace the clock body. Repair the wiring harness.