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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 6 (BODY CONTROL MODULES)DIAGNOSTIC TESTSDTC B1344: COURTESY LIGHTS BATTERY FEED CIRCUIT (OPEN)TESTING
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4
DTC B1344: Courtesy Lights Battery Feed Circuit (Open): Testing
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4SECTION Testing
WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- If BCM diagnostic system check was performed, go to next step. If BCM diagnostic system check was not performed, go to BCM DIAGNOSTIC SYSTEM CHECK under SYSTEM TESTS.
- Using scan tool, check for DTCs. If DTC B1482 is set, go to DTC B1482: COURTESY LIGHTS CIRCUIT (SHORT TO GROUND) . If DTC B1482 is not set, go to next step.
- Check INADV POWER BUS fuse (15-amp), located in instrument panel fuse block. If fuse is blown, go to step 6 . If fuse is okay, go to next step.
- Turn ignition off. Disconnect BCM Natural 10-pin connector C3. Connect test light between BCM harness connector C3, terminal "K" (Orange wire) and ground. See WIRING DIAGRAMS . See Figure . If test light comes on, go to next step. If test light does not come on, go to step 7 .
- Turn ignition off. Reinstall all components and connectors. Turn ignition on. Using scan tool, clear DTCs. Check for DTCs. If DTC B1344 is set, go to step 8 . If DTC B1344 is not set, go to step 9 .
- Replace INADV POWER BUS fuse. Go to step 10 .
- Repair poor connection or open in Orange wire between BCM connector C3 and instrument panel fuse block. Go to step 10 .
- Check for poor connection at BCM connector C3, terminal "K" (Orange wire). If connection is okay, replace BCM. See BODY CONTROL MODULE (BCM) under REMOVAL & INSTALLATION. Reprogram BCM. See BCM NEW BCM SETUP under PROGRAMMING. Go to step 10 .
- System is operating properly at this time. After any repairs are made, go to next step.
- Turn ignition off. Reinstall all components and connectors. Turn ignition on. Using scan tool, clear DTCs. Check for DTCs. If any DTCs are current, perform BCM DIAGNOSTIC SYSTEM CHECK under SYSTEM TESTS. If no DTCs are current, system is operating properly.
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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.