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 MANUALSSAAB1995900 S, 2D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 8 (ENGINE CONTROLS - SELF-DIAGNOSTICS - TRIONIC FUEL CONTROL SYSTEM)CIRCUIT TESTSDTC P0605 - ELECTRONIC CONTROL MODULE (ECM) MALFUNCTIONDIAGNOSIS & REPAIR PROCEDURE
1995 Saab 900 S, 2D Hatchback, Automatic
Diagnosis & Repair Procedure
1995 Saab 900 S, 2D Hatchback, AutomaticSECTION Diagnosis & Repair Procedure
WARNING: This page is about a different car, the 1996 Saab 900. However, it is still accessible from the selected car via links, so may be relevant.
- Clear DTC and road test vehicle. If DTC is reset, remove and check the following:
- Condition of connector and connector sleeves.
- ECM ground connection (terminals No. 24 and 25).
- ECM power connection (terminals No. 1, 48 and 60). If no fault is found, go to next step. If fault is found, repair or replace as necessary.
- Clear DTC and road test vehicle. If DTC is not reset, repair is complete. If DTC is reset, replace ECM and retest system.
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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.