Question about 1999 Buick Century

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Ignition module faulty ignition module. Draining battery. Where is the module located on the vehicle?

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Hi...
The Ignition module of your Century.
Is located UNDER THE IGNITION COILS.
The ignition coils are tie on the ignition module.
But LET ME tell you, something about your problem with the battery,
The Ignition Module is the LESS posible to Drain the Battry,
Because only use 3 connector, and the Ign. module is powered
with the ignition switch, is mean when you Turn the key to OFF.
All the power of the Ign. module Cut off.
If the ignition has no power when the car is OFF, impossible
Drain the battery,

I recomend check that all the lights went off after you close all the doors. Check the glove box light, Trunk light.
Some times the Factory Radio on chevys give up this problem, If the car is equipaded with a Aftermarket alarm.
You should check the circuit.

I'm a mechanic,
I hope this help on your problem.
Thank you for use fixya...

Posted on Sep 03, 2008

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Vehicle Battery Positive Wire (+): Yellow
Vehicle Battery Positive Wire Location: Ignition Switch Harness
Vehicle Ignition Wire (+): Red/Light Green
Vehicle Ignition Wire Location: Ignition Switch Harness
Vehicle Second Ignition Wire (+): N/A
Vehicle Second Ignition Wire Location: N/A
Vehicle Accessory Wire (+): Gray/Yellow
Vehicle Accessory Wire Location: Ignition Switch Harness
Vehicle Second Accessory Wire (+): N/A
Vehicle Second Accessory Wire Location: N/A
Automobile Engine Starter Wire (+): Red/Light Blue
Automobile Engine Starter Wire Location: Ignition Switch Harness
Automobile Second Engine Starter Wire (-): N/A
Automobile Second Engine Starter Wire Location: N/A
Factory Anti-Theft System: None
Factory Anti-Theft System Type: None
Car Key Sense Wire (-): Black/Pink
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Car Neutral Safety Wire (+): N/A
Car Neutral Safety Wire Location: N/A
Car Tachometer Wire (-): Tan/Yellow
Car Tachometer Wire Location: At Ignition Switch Control Module in Driver Fender Well
Car Speed Sense Wire: Gray/Black
Car Speed Sense Wire Location: Pin #3 at PCM Mounted on the Firewall
Car Parking Lights Wire (+): Brown
Car Parking Lights Wire Location: At Headlight Switch or Driver Side Kick Panel
Car Brake Lights Wire (+): Green
Car Brake Lights Wire Location: At Brake Switch Above the Pedal
Car Reverse Lights Wire (+): Black/Pink
Car Reverse Lights Wire Location: At Switch on Transmission
Car Horn Wire (-): Blue
Car Horn Wire Location: At Steering Column Harness

Sorry friend, this is as far as i can go to tel you how to hot wire the ignition. But with the color codes you should be able to figure it out, Good luck and keep me posted.

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