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 MANUALSSATURN1995SL1 STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSDIAGNOSIS
1995 Saturn SL1 Standard
Automatic Trans: Diagnosis
1995 Saturn SL1 StandardSECTION Diagnosis
- Description & Operation
- Self-Diagnostic System
- Diagnostic Tests
- Notes
- DTC 13 - High Line Pressure
- DTC 14 - Low Line Pressure
- DTC 16 - No 1ST Gear
- DTC 18 - No Forward Gears
- DTC 21 - 2ND Gear Stuck On
- DTC 22 - No 2ND Gear
- DTC 23 - No 3RD Gear
- DTC 24 - No 4TH Gear
- DTC 25 - No TCC
- DTC 26 - TCC Stuck On
- DTC 31 - Transaxle Temperature Cold (Circuit Open)
- DTC 32 - Transaxle Temperature Hot (Circuit Grounded)
- DTC 34 - Communications Error
- DTC 35 - No Turbine Speed Input
- DTC 36 - Turbine Speed Input Signal Noise
- DTC 41 - Vehicle Speed Sensor Input Not Present
- DTC 42 - Noise On Vehicle Speed Sensor Input
- DTC 43 - Fuel Pump Relay Grounded/Open
- DTC 45 - Selector Switch - No Data
- DTC 46 - Selector Switch - Undefined Data
- DTC 49 - Selector Switch - Invalid Data
- DTCS 54, 55 & 56 - Pcm Failure
- DTC 75 - 3RD Gear Stuck On
- DTC 78 - 4TH Gear Stuck On
- Information Flag Charts
- Notes
- Diagnosis
- Information Flag 15 - Low Coolant/Hot Light On
- Information Flag 47 - Pcm Failure
- Information Flags 51 & 57 - Pcm Failure
- Information Flag 61 - Pcm Failure
- Information Flags 62, 63 & 64 - Pcm Failure
- Information Flag 65 - Battery Voltage Too High Or Too Low
- Information Flag 68 - Line Actuator Circuit Grounded/Open
- Information Flag 69 - Line Actuator Circuit Shorted To Voltage
- Information Flag 71 - 2ND Gear Actuator Circuit Grounded/Open
- Information Flag 72 - 2ND Gear Actuator Circuit Shorted To Voltage
- Information Flag 73 - 3RD Gear Actuator Circuit Grounded/Open
- Information Flag 74 - 3RD Gear Actuator Circuit Shorted To Voltage
- Information Flag 76 - 4TH Gear Actuator Circuit Grounded/Open
- Information Flag 77 - 4TH Gear Actuator Circuit Shorted To Voltage
- Information Flag 79 - TCC Actuator Circuit Grounded/Open
- Information Flag 81 - TCC Actuator Circuit Shorted To Voltage
- Information Flag 83 - Low Transaxle Temperature
- Information Flag 84 - Brake Switch Stuck Open
- Information Flag 85 - Brake Switch Stuck Closed
- Information Flag 86 - Pcm Failure
- Information Flag 95 - Intermittent Pcm Failure
- Information Flag 96 - Intermittent Pcm Failure
- Information Flag 97 - Intermittent Pcm Failure
- Information Flag 98 - Intermittent Pcm Failure
- Information Flag 99 - Intermittent Pcm Failure
- Pcm Learn Mode
- Actuator Quick Check
- Connector Identification
- Technical Service Bulletins
- Wiring Diagrams
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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.