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 MANUALSSAAB20099-7X 5.3IREPAIR AND DIAGNOSISBODY & FRAMEMIRRORSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1724CIRCUIT/SYSTEM TESTING
2009 Saab 9-7X 5.3i
Circuit/System Testing
2009 Saab 9-7X 5.3iSECTION Circuit/System Testing
- Ignition OFF, disconnect the X3 harness connector at the appropriate door module.
- Ignition ON, verify a test lamp does not illuminate between the following control circuit terminals and ground:
- Control circuit terminal B4
- Control circuit terminal B2
- Control circuit terminal B6
- If the test lamp illuminates, test the appropriate control circuit for a short to voltage.
- Ignition OFF, test for infinite resistance between the following control circuits and ground:
- Control circuit terminal B4
- Control circuit terminal B2
- Control circuit terminal B6
- If less the specified value, test the appropriate control circuit for a short to ground.
- Test for 40-100 ohms between the control circuit terminal B4 and the control circuit terminal B6.
- If not within the specified range, test both control circuits for an open/high resistance. If the circuits test normal, test or replace the rearview mirror motor.
- Test for 40-100 ohms between the control circuit terminal B2 and the control circuit terminal B6.
- If not within the specified range, test both control circuits for an open/high resistance. If the circuits test normal, test or replace the rearview mirror motor.
- If all circuits test normal, replace the door module.
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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.