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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSPONTIAC1990FIREBIRD FORMULA, 5.0 F, AUTOMATIC, 4L60/MD8REPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCOMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORCONTROL UNITS
1990 Pontiac Firebird Formula, 5.0 F, Automatic, 4L60/MD8
Control Units
1990 Pontiac Firebird Formula, 5.0 F, Automatic, 4L60/MD8SECTION Control Units
CONTROL UNITS LOCATION
| Component | Location | ||
|---|---|---|---|
| Audio Alarm Module | In convenience center. | ||
| Cruise Control Module | Behind right center of dash. See Figure . | ||
| Daytime Running Lights (DRL) Module (Canada) | Behind left side of dash, near fuse block. | ||
| Diagnostic/Energy Reserve Module (DERM) (5.0L VIN E) | Behind right side of dash. | ||
| Electronic Control Module (ECM) | |||
| 3.1L VIN T | Behind right side of dash. See Figure . | ||
| 5.0L VIN E | Behind right side of dash. See Figure . | ||
| 5.0L (VIN F) & 5.7L (VIN 8) | |||
| Camaro | Behind right side of dash. See Figure . | ||
| Firebird | Behind right side of dash. See Figure . | ||
| Elect. Spark Control (ESC) Module (5.0L VIN E) | On left side of firewall, behind brake booster. See Figure . | ||
| Headlight Door Module | On firewall bracket, behind brake booster. | ||
| Pass Key Decoder Module | Behind right side of dash. | ||
| SIR Resistor Module | Behind left side of dash. | ||
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.