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 MANUALSSATURN2000LW2 AUTOMATICREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSSHIFT INTERLOCK SYSTEMSYMPTOM TESTSSHIFT LOCK CONTROL INOPERATIVE"W" BODY (INTRIGUE)
2000 Saturn LW2 Automatic
"W" Body (Intrigue)
2000 Saturn LW2 AutomaticSECTION "W" Body (Intrigue)
- Place gearshift lever in "P" position. Turn ignition switch to ON position. Disconnect BTSI solenoid connector. Using test light, backprobe between BTSI solenoid connector terminal "A"and ground. See Figure. Apply brake pedal. If test light illuminates, go to next step. If test light does not illuminate, replace BTSI solenoid, then go to step 4.
- Leave test light connected between BTSI solenoid connector terminal "A"and ground. Disconnect brakelight switch 4-pin connector C2. If test light illuminates, go to next step. If test light does not illuminate, check brakelight switch adjustment. If brakelight switch adjustment is okay, replace brakelight switch, then go to step 4.
- Check for short to battery power in circuit between brakelight switch 4-pin connector C2 terminal "B" and BTSI solenoid connector terminal "A". See Figure and Figure . See WIRING DIAGRAMS . Repair as necessary, then go to next step.
- Ensure all components disconnected or removed during testing are reconnected and installed on vehicle. Ensure BTSI system operates correctly. See SHIFT INTERLOCK SOLENOID under DESCRIPTION & OPERATION. If system does not operate correctly, repeat step 1.
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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.