Troubleshooting No. 4

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

OUTER TEMPERATURE DISPLAY MALFUNCTION
1. Check that the battery positive voltage is 10 - 16 V.
  If voltage is not as specified, replace the battery.
2. Troubleshoot the outer temperature display as follows.
  HINT:
  
  Inspect the connector on the wire harness side.
  
  Fig 1: Identifying Outer Temperature Display Malfunction Flow Chart
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