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 MANUALSSAAB1995900 SE, 4D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSA/C-HEATER SYSTEM - AUTOMATIC
1995 Saab 900 SE, 4D Hatchback, Automatic
A/C-Heater System - Automatic
1995 Saab 900 SE, 4D Hatchback, AutomaticSECTION A/C-Heater System - Automatic
- A/C System Specifications
- Description
- Operation
- A/C-Heater Control Panel
- A/C Compressor Circuit
- Air Blend Damper Stepper Motor
- Air Distribution Damper Stepper Motor
- Black Panel & Rheostat
- Blend-Air Temperature Sensor
- Blower Motor Fan
- Cold Or Hot Start In Auto Mode
- Engine Off Time
- Engine Coolant Temperature Sensor
- Heated Rear Window
- In-Vehicle Temperature Sensor
- Outside Temperature Sensor
- Parking Heater
- Solar Sensor
- RECIRCULATION Damper Motor
- Top Open Operating Mode
- Trouble Shooting
- Fault Diagnosis
- Notes
- Retrieving Trouble Codes
- Calibration
- Clearing Trouble Codes
- Programming
- DTC B1343, Solar Sensor Circuit
- DTC B1347 & B1348, Blend Air Sensor Circuit
- DTC B1352 & B1353, In-Vehicle Temperature Sensor Circuit
- DTC B1355, In-Vehicle Temp. Sensor & Blower Motor Power Supply
- DTC B1360, A/C-Heater Control Panel Push Button Circuit
- DTC B1493, A/C Output Signal Circuit
- DTC B1498, Heated Rear Window Circuit
- DTC B1515, Sensor Ground Circuit
- DTC B1605, B1675, B1676 & B1677, A/C-Heater Control Panel & Stepper Motor Circuits
- DTC B2402, B2403 & B2404, Air Distribution Stepper Motor Circuit
- DTC B2413 & B2414, RECIRCULATION Flap Motor Circuit
- DTC B2426, B2427 & B2428, Fan Control Voltage Circuit
- DTC B2492, B2493 & B2494, Blend Air Stepper Motor Circuit
- Testing
- Removal & Installation
- Wiring Diagram
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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.