Which 1988 Fiero manual entries contain this headlamp diagram?

The hosted Fiero L4-151 2.5L and Fiero V6-173 2.8L entries both link to this same headlamp-circuit image. This does not establish that every circuit or procedure in those manuals is interchangeable.

Does this show the complete headlight-door motor circuit?

The shown headlamp circuit has an arrow to a separate headlight-door circuit. Use the applicable headlight-door or motor section for that system; do not treat this one drawing as the complete door-control schematic.

1988 Pontiac Fiero Headlight Wiring Diagram

Read the headlamp circuit below, then check the matching manual entry and your exact vehicle before working on the circuit.

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Quick answer

The hosted 1988 Fiero L4-151 2.5L and 1988 Fiero V6-173 2.8L manual entries both reference the headlamp schematic shown here. It shows the light switch, dimmer switch, left and right headlamps, and ground paths.

The drawing points to a separate headlight-door circuit. Choose the applicable manual section for door or motor faults, and confirm your exact configuration. No Base/Automatic trim has been assumed.

Headlamp circuit schematic

Both linked source entries below reference this same image. Open the full-size drawing to read the wire labels and connector markings on a small screen.

Open the full-size diagram

If the image does not load, open a source manual below or retry later. Do not diagnose from a missing or unreadable schematic.

Headlamp circuit schematic referenced by the 1988 Fiero 2.5L and 2.8L manuals, showing the light switch, dimmer switch, left and right headlamps and ground paths — Hosted manual image: Headlamp Wiring Circuit. Confirm vehicle applicability using the source links before relying on the drawing.

Choose the source manual

Sharing one image does not prove that complete manuals or other configurations are equivalent.

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Looking for a replacement headlamp?

Diagnose the fault before replacing parts. If a replacement lamp is needed, check the listing against your exact vehicle and existing lamp; this search is not a confirmed fit.

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Frequently asked questions

Which 1988 Fiero manual entries contain this headlamp diagram?: The hosted Fiero L4-151 2.5L and Fiero V6-173 2.8L entries both link to this same headlamp-circuit image. This does not establish that every circuit or procedure in those manuals is interchangeable.
Does this show the complete headlight-door motor circuit?: The shown headlamp circuit has an arrow to a separate headlight-door circuit. Use the applicable headlight-door or motor section for that system; do not treat this one drawing as the complete door-control schematic.