Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 430 (ENGINE CONTROLS - THEORY & OPERATION)MISCELLANEOUS CONTROLSCOOLANT TEMP WARNING INDICATOR
2004 Oldsmobile Bravada AWD
Coolant Temp Warning Indicator
2004 Oldsmobile Bravada AWDSECTION Coolant Temp Warning Indicator
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- The IPC illuminates the TEMP indicator (thermometer icon) when the Powertrain Control Module (PCM) determines that the coolant temperature is more than 262°F (128°C). The Instrument Panel Cluster (IPC) receives a discrete input from the PCM requesting illumination. The IPC performs the displays test at the start of each ignition cycle. The TEMP indicator will illuminate during this test.
- The vehicle also has a temperature gauge that shows the engine coolant temperature. If the gauge pointer moves into the Red area, the engine is too hot. This reading indicates the same thing as the warning light. The IPC displays the engine coolant temperature as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the engine coolant temperature. The engine coolant temperature gage defaults to "C" (cold) or below if the PCM detects a malfunction in the engine coolant temperature sensor circuit and if the IPC detects a loss of class 2 communications with the PCM.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.