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.
1990 Saab 9000 CD, AutomaticFACTORY OEM SERVICE PROCEDURE
Error Code 12214
- The check engine light is on. The coolant temperature signal is below 90°C or above 160°C, which is incorrect or out of range.
- Test coolant temperature sensor. Make resistance test at pin 13 of LH control unit and ground. Resistance should be approximately 2280-2720 ohms at 68°F (20°C) and 295-365 ohms at 176°F (80°C).
Factory Service Tools
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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.
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