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.
2002 Saturn L100FACTORY OEM SERVICE PROCEDURE
HVAC, Automatic DTCS
HVAC, AUTOMATIC DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B0130 | AIRFLOW POSITION FEEDBACK CIRCUIT MALFUNCTION |
| DTC B0160 | OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT LOW |
| DTC B1061 | Outside Air Temperature Sensor Circuit High |
| DTC B0165 | PASSENGER COMPARTMENT AIR TEMPERATURE SENSOR LOW |
| DTC B0166 | PASSENGER COMPARTMENT AIR TEMPERATURE SENSOR HIGH |
| DTC B0185 | SOLAR LOAD SENSOR CIRCUIT LOW |
| DTC B0186 | SOLAR LOAD SENSOR CIRCUIT HIGH |
| DTC B0413 | TEMPERATURE CONTROL FEEDBACK CIRCUIT MALFUNCTION |
| DTC B1000 | ECU MALFUNCTION |
Factory Service Tools
Use the Manual With the Right Hardware
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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.