What is your question?
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What is your question?
Temperature gauge falls to cool while driving P0128 code
What makes this problem better or worse?
Turning on the heat or driving
How long has your 2007 Lexus IS250 had this problem?
3 months
1 Reply
Hello, a diagnostic tool is needed to validate what the temperature sending unit is doing from the engine. If the sending unit is not reading properly, it may need to be replaced, or may need a wiring repair. www.repairpal.com/repair-shops