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 MANUALSOLDSMOBILE1996EIGHTY-EIGHT LSS FWD V6-3.8L VIN KREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULEDESCRIPTION AND OPERATIONPCM OUTPUTS
1996 Oldsmobile Eighty-Eight LSS FWD V6-3.8L VIN K
PCM Outputs
1996 Oldsmobile Eighty-Eight LSS FWD V6-3.8L VIN KSECTION PCM Outputs
PCM CONTROLLED WARNING LAMPS
The PCM controlled lamps are intended to alert the driver to an operating condition which may require immediate attention. The instrument panel indicators, ignition 1 feed, powers the PCM controlled lamps. Low Oil Level Lamp
The PCM commands the Low Oil Level Lamp ON if the engine oil level sensor indicates that a low oil level condition exists. The PCM determines whether or not to test for low oil level based on the difference between engine coolant temperature at the last shutdown and engine coolant temperature at start-up. This is to ensure that the oil has drained back into the oil pan before testing.
HOT LAMP
The PCM commands the Hot lamp ON when the engine coolant temperature exceeds 124°C (255°F). The PCM commands the Hot lamp OFF when the engine coolant temperature falls below 120°C (248°F).
CHANGE OIL LAMP
The PCM commands the Oil Life Monitor lamp ON when an oil change is require. The PCM calculates remaining Oil life based on total engine revolutions and calculated engine oil temperature for each start-up since the Oil Life monitor was reset.
GENERATOR LAMP
The PCM commands the generator lamp ON under the following conditions:
^ When the engine speed is greater than 1200 RPM and system voltage falls below 10 volts for longer than 10 seconds. The PCM commands the generator lamp OFF when system voltage rises to above 12 volts.
^ When the generator control circuit (L terminal) remains low for longer than 10 seconds.
^ When the engine speed is below 2000 RPM and the generator PWM control circuit (F terminal) duty cycle falls below 5% and remains below 15% for longer than 20 seconds.
^ When the engine speed is above 4000 RPM and the generator PWM control circuit (F terminal) duty cycle increases to above 95% and remains above 85% for longer than 20 seconds.
PCM CONTROLLED AIR CONDITIONING
The air conditioning system uses a compressor with variable displacement. This compressor is referred to as the V-5 type compressor. The V-5 compressor meets A/C requirements without cycling. The A/C compressor operation is controlled by the Powertrain Control Module (PCM).
ELECTRIC COOLING FANS
The electric cooling fans are used to cool engine coolant flowing through the radiator. They are also used to cool the refrigerant (R134a) flowing through the A/C condenser.
Power for the cooling fan motors is supplied by the Cooling Fans Maxi-Fuse. The relays are energized when the PCM grounds the fan control driver circuits.
The PCM controlled lamps are intended to alert the driver to an operating condition which may require immediate attention. The instrument panel indicators, ignition 1 feed, powers the PCM controlled lamps. Low Oil Level Lamp
The PCM commands the Low Oil Level Lamp ON if the engine oil level sensor indicates that a low oil level condition exists. The PCM determines whether or not to test for low oil level based on the difference between engine coolant temperature at the last shutdown and engine coolant temperature at start-up. This is to ensure that the oil has drained back into the oil pan before testing.
HOT LAMP
The PCM commands the Hot lamp ON when the engine coolant temperature exceeds 124°C (255°F). The PCM commands the Hot lamp OFF when the engine coolant temperature falls below 120°C (248°F).
CHANGE OIL LAMP
The PCM commands the Oil Life Monitor lamp ON when an oil change is require. The PCM calculates remaining Oil life based on total engine revolutions and calculated engine oil temperature for each start-up since the Oil Life monitor was reset.
GENERATOR LAMP
The PCM commands the generator lamp ON under the following conditions:
^ When the engine speed is greater than 1200 RPM and system voltage falls below 10 volts for longer than 10 seconds. The PCM commands the generator lamp OFF when system voltage rises to above 12 volts.
^ When the generator control circuit (L terminal) remains low for longer than 10 seconds.
^ When the engine speed is below 2000 RPM and the generator PWM control circuit (F terminal) duty cycle falls below 5% and remains below 15% for longer than 20 seconds.
^ When the engine speed is above 4000 RPM and the generator PWM control circuit (F terminal) duty cycle increases to above 95% and remains above 85% for longer than 20 seconds.
PCM CONTROLLED AIR CONDITIONING
The air conditioning system uses a compressor with variable displacement. This compressor is referred to as the V-5 type compressor. The V-5 compressor meets A/C requirements without cycling. The A/C compressor operation is controlled by the Powertrain Control Module (PCM).
ELECTRIC COOLING FANS
The electric cooling fans are used to cool engine coolant flowing through the radiator. They are also used to cool the refrigerant (R134a) flowing through the A/C condenser.
Power for the cooling fan motors is supplied by the Cooling Fans Maxi-Fuse. The relays are energized when the PCM grounds the fan control driver circuits.
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.