Water Temperature Signal Inspection

Symptom: Improper water temperature gauge indication.

1. CHECK COMBINATION METER INPUT SIGNAL 
   1. Start engine and select "METER/M&A" on CONSULT-III.
   2. Run the engine at different temperatures and compare water temperature with "W TEMP METER" of "DATA MONITOR". Indication should be as follows:

      High: 130°C (266°F) 

      Normal: 70 - 105°C (158 - 221°F) 

      Cold: Less than 50°C (122°F) 

   OK or NG 

   OK: Perform ECM self-diagnosis. Refer to "SELF-DIAG RESULTS MODE ".

   NG: Replace combination meter. Refer to "COMBINATION METER ".