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 MANUALSSATURN1992SC STANDARDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSDIAGNOSISCODE CHARTSCODE 45 - SELECTOR SWITCH NO DATADESCRIPTION
1992 Saturn SC Standard
Code 45 - Selector Switch No Data: Description
1992 Saturn SC StandardSECTION Description
The selector switch uses 4 switches to signal PCM which gear position has been selected. See SELECTOR SWITCH POSITION TABLE (CODE 45) . If all 4 circuits are open at the same time, PCM will set code 45.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- This step checks if code 45 is still present.
- This step checks for connector problems at selector switch.
- This step checks selector switch for a good ground.
- Use "Scan" tool to ensure wiring and connections are okay. If all circuits are open, PCM will set code 45.
- Check for open circuits by checking each terminal at selector switch for 12 volts.
SELECTOR SWITCH POSITION (CODE 45)
| Gear Selected | Selector Switch Terminals |
|---|---|
| "P" | "A" & "D" |
| "R" | "A" & "B" |
| "N" | "B" & "D" |
| "D4" | "B" & "C" |
| "D3" | "C" & "D" |
| "D2" | "A" & "C" |
RENDER: 1.0x
NO RELATED
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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.