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 MANUALSOLDSMOBILE1998ACHIEVA 3.1 M, 4T40E/MN4REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - TESTS W/CODES - 3.1LDIAGNOSTIC TROUBLE CODESDTC P1352 - BY-PASS LINE OPENDIAGNOSTIC PROCEDURES
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4
Diagnostic Procedures
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4SECTION Diagnostic Procedures
- Perform POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK , then go to next step.
- Turn ignition off. Disconnect PCM harness connector. Turn ignition on. Connect DVOM between IC and reference low circuit. Connect test light between battery voltage and by-pass circuit. If resistance is greater than 5000 ohms, go to step 4). If resistance is not greater than 5000 ohms, go to next step.
- Turn ignition off. Disconnect ICM harness connector. Check for open in by-pass circuit. Repair as necessary. After repairs, go to step 8). If circuit is okay, go to step 5).
- Check for poor terminal connections at PCM. Repair as necessary. After repairs, go to step 8). If connections are okay, go to step 7).
- Check for poor terminal connections at ICM. Repair as necessary. After repairs, go to step 8). If connections are okay, go to next step.
- Replace ICM. After replacing module, go to step 8).
- Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
- Read and record FAIL RECORDS data for this DTC. Clear DTCs. Operate vehicle within conditions noted in FAIL RECORDS data. Using scan tool, read SPECIFIC DTC. If scan tool displays DTC FAILED THIS IGN, return to step 2). If scan tool does not display DTC FAILED THIS IGN, repair is complete.
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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.