Unplug computer n clean pins..half the time it cures an older car. Or git car scand ata partsplace. May need anew sensor
Unplug computer n clean pins..half the time it cures an older car. Or git car scand ata partsplace. May need anew sensor
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Check your battery cables Buicks were noted to have two positive cables. One primarily for the starter and the other for systems.
SOURCE: Instrument Cluster
No. 2001 to 2003 are interchangeable. I am currently looking to replace mine on a 2002 and have consistently been told those years are the same. These babys are pricey, perhaps you can trade your 2004 for one that will work.
SOURCE: Belt routing diagram for 98 Buick Regal GS
if serpentine, then it should be on the fan shroud or the radiator cover...
SOURCE: trac light, ABS and service engine soon light won't go off
Your ABS systems use a combination of electronic and hydraulic systems to modulate the brakes individually to prevent them from locking up. Antilock systems consist of wheel speed sensors, a hydraulic control unit (HCU), and an electronic control unit (ECU). Because of how complex the system is your computer does a self-test. If the check is successful, the ANTILOCK and BRAKE lights will go out within a few seconds. If one or more of the component of the ABS system fails to pass one or both lights will remain lit, the system will shut down and set a code. The code itself doesn't tell exactly what component is defective - it only indicates where to look, or what parameter is out of normal range. You or a technician will have to perform further testing to pinpoint cause and the proper repair. Even if you reset the light, if the underlying problem is not addressed it will come back on.
Please let me know if this information is helpful. Positive feedback is appreciated. Thank You!
SOURCE: Need to remove the dashboard bezel and instrument
Regal
1988–94 MODELS
SOURCE: car will not crank and all instrument cluster lights flash
My 2003 Regal is doing the same EXACT thing but has nothing to do with the headlights. No one can seem to figure out what is wrong!
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Lamp control module (LCM)
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Switch of the RH IP fuse block headlamp relay position J
When the headlamp switch is placed in the ON position, battery positive voltage (B+) is supplied via CKT 10 (YEL) to the coil of the headlamp relay position J. The coil is permanently grounded to G201 via CKT 1450 (BLK). The coil is energized and the contacts close providing battery positive voltage (B+) to the headlamp dimmer switch via CKT 1346 (LT BLU). When the headlamp dimmer switch is in the LOW position, battery positive voltage (B+) is supplied via CKT 12 (TAN) to the following components:
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Left low beam headlamp
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Right low beam headlamp
The LCM provides battery positive voltage (B+) via CKT 1346 (LT BLU) through the headlamp dimmer switch to the headlamps under the following conditions:
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The ignition switch is in the RUN position.
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The ambient light sensor indicates darkness.
The lamp control module (LCM) monitors the ambient light conditions through the ambient light sensor. The ambient light sensor is a variable resistor whose resistance changes as the surrounding ambient light level changes. As the ambient light decreases, the resistance of the ambient light sensor increases. The LCM measures the resistance across the ambient light sensor and determines whether it is day or night.
Headlamps Inoperative - Low Beams (Oldsmobile)
This is a lengthy diagnostic flow chart .
1
Did you perform the headlights system check?
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Go to Step 2
Go to Headlight System Check
2
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