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.
Chart A, Loss Of IPC Display (Non-CRT Equipped) TORONADO & TROFEO
1992 Saturn SL1 AutomaticSECTION Chart A, Loss Of IPC Display (Non-CRT Equipped) TORONADO & TROFEO
Loss of IPC display and messages can result from following:
- Loss of 12 volts to IPC
- Loss of ground to IPC
- Loss of wake-up signal to BCM
- Internal fault in BCM or IPCNOTE: Test numbers refer to numbers on diagnostic chart.
- This step checks to see if BCM is awake. If BCM is not awake, cause of blank display is power and/or ground related.
- This step checks BCM power and ground sources.
- This step checks to see if IPC has lost power or ground. Normally with ignition on, battery voltage should be present at listed terminals.
- This step checks for short to ground in any of the 640 circuits.
- This step checks if short to ground is inside component or in circuit.
- This step checks if IPC is receiving 7 volts from BCM.
RENDER: 1.0x
NO RELATED
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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.