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Home >> Cadillac >> 1994 >> DeVille Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Self-Diagnostics >> DIC Messages >> ENGINE COOLANT HOT IDLE ENGINE Message

ENGINE COOLANT HOT IDLE ENGINE Message

  1. When engine coolant temperature reaches 285°F (126°C), PCM reports to IPC to display message. Message will continue to be displayed until temperature falls to less than 275°F (121°C).
  2. The message cannot be displayed if IPC loses communication with PCM (such as Code I034), or if PCM sees a coolant sensor failure (such as Codes P014/P015). If engine overheated and no message displayed, check for these trouble codes and check for defective coolant sensor.
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