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 MANUALSSATURN1996SW2 L4-1.9L DOHC VIN 7REPAIR AND DIAGNOSISLIGHTING AND HORNSBACKUP LAMPTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICS
1996 Saturn SW2 L4-1.9L DOHC VIN 7
Component Tests and General Diagnostics
1996 Saturn SW2 L4-1.9L DOHC VIN 7SECTION Component Tests and General Diagnostics
Ignition Switch
Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
Park/Neutral Position Switch (Back-up switch) (Auto Trans only)
1. Check switch resistance.
Switch resistance: OPEN when PRNDL not in Reverse. Less than one ohm when PRNDL in Reverse.
2. Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
Back Up Switch (Manual Trans only)
1. Check switch resistance.
Switch resistance: OPEN when transmission not in Reverse. Less than one ohm when transmission in Reverse
2. Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
Bulb Socket
1. Check voltage through the bulb socket.
2. Check for damaged or corroded terminals or connectors. Check terminals for tightness.
3. Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
Park/Neutral Position Switch (Back-up switch) (Auto Trans only)
1. Check switch resistance.
Switch resistance: OPEN when PRNDL not in Reverse. Less than one ohm when PRNDL in Reverse.
2. Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
Back Up Switch (Manual Trans only)
1. Check switch resistance.
Switch resistance: OPEN when transmission not in Reverse. Less than one ohm when transmission in Reverse
2. Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
Bulb Socket
1. Check voltage through the bulb socket.
2. Check for damaged or corroded terminals or connectors. Check terminals for tightness.
3. Repair/replace as needed.
If this component is good, go to the next item indicated on the Complaint-Condition Chart.
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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.