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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSAAB19949000 CD, AUTOMATICREPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSALTERNATOR & REGULATORTESTINGBENCH TESTINGNEGATIVE RECTIFIER DIODES
1994 Saab 9000 CD, Automatic
Negative Rectifier Diodes
1994 Saab 9000 CD, AutomaticSECTION Negative Rectifier Diodes
- Connect positive terminal of ohmmeter or a self-powered test light (40-volt maximum) to alternator D- terminal. Measure resistance or continuity between terminal D- and each diode stator terminal, one at a time, with stator leads disconnected. See Figure. Test light should glow or ohmmeter should indicate low resistance when negative terminal of test light or ohmmeter is connected to each diode terminal.
- Reverse ohmmeter or test light connections, and repeat each measurement. Test light should not glow or ohmmeter should indicate high resistance. Replace rectifier assembly if any diode is defective.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.