Buzzers, Relays & Timers

1984 Pontiac Firebird Base, 5.0 H, AutomaticSECTION Buzzers, Relays & Timers
BUZZERS, RELAYS & TIMERS LOCATION

Component Location
A/C Blower High Speed Relay On A/C housing near blower motor. See Figure.
A/C Blower Relay Assembly (Berlinetta) (HI, LO, M1, M2 & Isolation Relays) Under dash in module on A/C plenum housing. See Figure.
A/C Compressor Control Relay On left cowl near brake booster. See Figure.
Beam Change Relay (Berlinetta) Inside light module.
Choke Heater Relay In convenience center. See Figure.
Courtesy Light Relay (Berlinetta) Inside light module.
Door Lock Relay Behind left kick panel in lower opening.
Fast Idle Relay (V6) Behind right headlights on side of radiator.
Fast Idle Relay (V8) On upper left of engine cowl. See Figure.
Flasher Select Relay (Berlinetta) Inside light module.
Fuel Pump Relay On upper left side of engine cowl. See Figure.
Hatch Release Relay To right of steering column taped to harness.
Hazard Flasher Relay In convenience center. See Figure.
Headlight Actuator Relays On headlight actuators.
Headlight Relay (Berlinetta) Inside light module.
Horn Relay In convenience center. See Figure.
Isolation Relay Behind right headlights.
Left Turn Signal Relay (Berlinetta) Inside light module.
Park/Turn Light Relay (Berlinetta) Inside light module.
Power Antenna Relay Under right side of dash. See Figure.
Radiator Fan Relay On upper left side of engine cowl. See Figure.
Rear Defogger Timer/Relay Behind right kick panel. See Figure.
Right Turn Signal Relay (Berlinetta) Inside light module.
Turn Signal Flasher Relay Above convenience center. See Figure.
Wide Open Throttle Relay In left rear corner of engine compartment.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.