2000 Oldsmobile Bravada - Answered Questions & Fixed issues

then suggest you get a local mechanic to help you

Did you hook up a professional type scan tool an read code's ? Just replacing parts an hoping you fix the problem isn't the way to diagnose .

make sure its in park. also if you have 10 pounds of junk on your key rings the lock is worn out now.

check fluids ---possibilities --trans fluid low -trans needs filter change-- failing trans--abs problem---if equipped 4wd problem --module -transfer case

No, you'll have to either drop the tank OR if you can figure out where the pump is located you can cut a access hole in the floorboard of the truck. Good luck, careful with sparks if ur using a grinder. Just sayin

Shut off the chime ? You want to shut off the chimes or they don't work ??>?? Which chime ? Audible Warnings Circuit Description Safety Belt Warning Chime Voltage is supplied to the body control module (BCM) through the following components when the ignition switch is in the START or RUN position: • The GAUGES fuse 4 • CKT 39 (PNK) When you first turn the ignition switch to the START or RUN position, a class 2 signal from the BCM is sent to the instrument cluster logic turning ON the fasten seat belt indicator. The indicator comes on steady for 20 seconds and then flashes for another 55 seconds if the drivers safety belt remains unbuckled, or goes out when the drivers safety is buckled. When the drivers safety belt is buckled, ground is no longer applied to the BCM through CKT 238 (BLK/WHT) from the seat belt switch causing the lamp and chime to go out. The chime will only sound for about the first 5 seconds of the ignition on cycle. Key-In Warning Chime Voltage is supplied at all times to the BCM through the following components: • The Underhood Fuse Block TBC fuse • CKT 1140 (ORN) The chime sounds if all of the following conditions exist: • The key is in the ignition switch. • The ignition switch is in one of the following positions: - ACC - LOCK - OFF • The LH front door is open. When the ignition key is in the ignition switch and the LH front door is open, the ignition key alarm switch closes. The LH door jamb switch also closes. When both of the switches close, the Body Control Module (BCM) senses ground through the following components: • CKT 126 (TAN) • The LH Door Jamb Switch • CKT 1050 (BLK) • SP203 • C203 cavity F12 • G203 The chime will sound for as long as the door is open and the key is in the ignition switch. Lamps-On Warning Chime Voltage is supplied through the ILLUM Fuse 12 to the BCM through CKT 1220 (GRY) when the following conditions exist: • The headlamp switch is in the PARK or Head position • The ignition switch is not in the RUN or START position • The IP dimmer switch is not at the dimmest setting. With the IP dimmer switch at the dimmest setting, the current to the BCM may be too weak to be sensed by the module. When the ignition switch is turned to the RUN or START position, voltage is supplied from the GAUGES Fuse 4 to the body control module through CKT 39 (PNK). When the ILLUM and GAUGES Fuse voltages are sensed at the same time, the alarm is not sounded. The GAUGES Fuse 4 loses voltage when the ignition switch is in one of the following positions: • LOCK • OFF • ACC I'am assuming the chime stays on all the time . Chime Always On Step Action Value(s) Yes No 1 Was the BCM Diagnostic System Check performed? -- YES - Go to Step 2 NO - Go to Diagnostic System Check - Body Control System in Body Control System 2 Did you review the audible warnings system operation and perform the necessary inspections? -- YES - Go to Step 3 NO - Go to Audible Warnings Circuit Description 3 Verify that the chime is always on. Does the chime operate normally? -- YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems NO - Go to Step 4 4 Turn the ignition switch to the OFF position. Remove the key from the ignition. Using the scan tool, enter BCM Data List. Select Input 1. Does the KEY IN IGNITION test display NO? -- YES - Go to Step 5 NO - Go to Step 9 5 Turn the ignition switch to the OFF position. Remove the key from the ignition. Move the headlamp switch to the OFF position. Using the scan tool, enter BCM Data List. Select Input 2. Does the PARKLAMPS test display OFF? Inspect the connections at the BCM. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Are the connections in need of repair? -- YES - Go to Step 7 NO - Go to Step 8 7 Repair the connections as necessary. Refer to Connector Repairs in Wiring Systems. YES - Is the repair complete? -- NO - Go to Step 11 -- 8 Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Is the repair complete? -- Go to Step 11 -- 9 Locate and repair the short to ground in CKT 80 between the BCM connector C2 terminal B9 and the ignition key alarm switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? -- Go to Step 11 -- 10 Are the park lamps ON with the switch OFF? -- Go to Diagnostic Starting Point in Lighting Systems Go to Step 6 11 Operate the system in order to verify the repair. Did you correct the condition? -- System OK Go to Step 4 Your best bet ,take it to a qualified repair shop.

No fuel going to carburetor ??? Your vehicle should have fuel injection ,not a carburetor . Is the SECURITY light lit on the instrument cluster ? Anti-theft system will keep fuel injectors from firing , or if there isn't any spark at the spark plugs the crankshaft position sensor could be bad . The PCM - engine computer will energize the fuel pump relay for two seconds to prim the fuel lines an the fuel rail for the injectors . After that it won't unless the engine is cranking over , an the PCM see's an input from the crankshaft position sensor . Your best , take it to a qualified repair shop.

have the OBD read for any fault codes

Sounds like you have a connection issue.

I really think you should go to www.reliable-store.com they have got books on every vehicle and also how to service/repair it, parts info, wiring diagrams, electrical diagrams, fuse diagrams, error codes, etc everything

Don't waste your money on unnecessary sources and unwanted repairs. Get this manual online at www.reliable-store.com and get complete guide on whether to repair or not, service it, and how to repair etc

I would first check for error codes (DTCs) with a code reader to see if that will tell you more about the problem. Many parts stores will do that for you for free.

007 Idle Speed Problems Scan Data for Idle

During stoplamp operation, power is supplied from the STOP LP fuse in the underhood fuse block through CKT 1540 (ORN) to the TCC/stop lamp switch. When the brake is depressed, the contacts of the TCC/stop lamp switch close, routing power to CKT 17 (WHT). CKT 17 supplies power to both the VECHMSL fuse and the stop switch contact of the hazard switch. From the VECHMSL fuse, current flows through CKT 1320 (LT BLU) to the high mount stoplamp and high mount stoplamp resistor. The ground is provided by G450 through CKT 1350 (BLK). From the stop switch contacts of the hazard switch, current flows through the turn signal switch to CKT 1418 (YEL/BLK) and CKT 1419 (DK GRN/WHT). CKT 1418 (YEL/BLK) supplies power to the LT TRN (rear) fuse (which feeds the LH rear park and turn signal lamp terminal A) through CKT 618 (YEL). Ground is provided by CKT 1350 (BLK) to G450. CKT 1419 (GRN/WHT) supplies power to the RT TRN (rear) fuse (which feeds the RH rear park and turn signal lamp terminal A) through CKT 619 (DK GRN). Ground is provided by CKT 1350 (BLK) to G450. When the left or right turn signal is turned ON, the appropriate turn signal will flash. The opposite side will remain ON in order to serve as a stoplamp when the brakes are applied.

You'll have to manually fish a wire through the grille to get to the latch to unlock the hood. This sounds like a dead battery

key wont come out till you have power --try boosting the truck and when started have battery and alternator tested ---to open hood remove the cable clip from the pull handle and use a pliers to pull it open cable habit to stretch --same problems with sister trucks trailblazer--envoys

The center if it's coming off of a distributor which is it should not be it's D I S check the coil packs

I would verify that the catalytic converter is not plugged or the muffler. If one of the two gets plugged it will put back pressure on the engine and not allow fuel into the cyl. to be fired and car will not run. You can also pull a couple of the new plugs and see if they have fuel to them or if you have an 02 sensor ahead of the cat you can remove it and see if car will start if so the exhaust sys. has one or the other plugged. Understand it will run rough but it should start. In addition, did you check the fuel pump pressure and did you change the fuel filter.

you pulled the ignition switch and installed a different switch that means that you have installed a different immobilizer system try reprogramming the new key to your ECM and it will probably go

There are three different transfer case's ! Which of these does your olds have ? Transfer Case - NVG 136-NP4 (One Speed Automatic) Transfer Case - NVG 233-NP1 (Two Speed Selectable) Transfer Case - NVG 236 (Two Speed Automatic) All three have an electronic control module ! When the light is on DTC'S are stored in the transfer case shift control module . SERVICE indicator (AWD/4WD) lamp The SERVICE indicator (AWD/4WD) lamp is an integral part of the instrument cluster and cannot be serviced separately. This lamp is used to inform the driver of the vehicle of malfunctions within the automatic transfer case (ATC) system. The SERVICE indicator (AWD/4WD) lamp is controlled by the transfer case shift control module via a Class 2 serial data message. There are three speed sensors on the Automatic Transfer Case (ATC), two on the rear output shaft and one on the front output shaft. Each speed sensor is a Permanent Magnet (PM) generator. The PM generator produces a pulsing AC voltage. The AC voltage level and number of pulses increases as speed increases. Vehicle Speed Sensor One of the two speed sensors on the rear output shaft is the vehicle speed sensor (VSS). It is an input to the vehicle control module (VCM). The VCM sends this information to the transfer case shift control module via the Class 2 Serial Data bus. Rear Propshaft Speed Sensor The transfer case shift control module converts the pulsating AC voltage from the rear propshaft speed sensor to a Rear Propshaft Speed in RPMs to be used for calculations. The Rear Propshaft Speed can be displayed with a scan tool. Front Propshaft Speed Sensor The transfer case shift control module converts the pulsating AC voltage from the front propshaft speed sensor to Front Propshaft Speed in RPM to be used for calculations, and to monitor the difference between the front and rear propshaft sensor speed. It is also used in the AUTO 4WD mode of operation to determine the amount of slip and the percent of torque to apply to the front axle. The Front Propshaft Speed can be displayed with a scan tool. Transfer Case Encoder Motor The transfer case encoder motor is a permanent magnet D.C. motor and gear reduction assembly. The encoder motor is controlled with a Pulse Width Modulated (PWM) signal provided by the transfer case shift control module. It is located on the left hand side (drivers side) of the transfer case. When activated it turns the sector shaft of the transfer case to shift the transfer case. This circuit consists of a power supply relay (Motor Feed A circuit ) that supplies voltage to the motor. The Motor Control B circuit is a PWM driver that varies the duty cycle to control the amount of current through the motor to ground. There are a number of codes that can set . DTC C0300 Rear Speed Sensor Malfunction DTC C0305 Front Speed Sensor Malfunction DTC C0308 Motor A/B Circuit Low DTC C0309 Motor A/B Circuit High DTC C0310 Motor A/B Circuit Open DTC C0315 Motor Ground Circuit Open DTC C0374 General System Malfunction DTC C0376 Front/Rear Shaft Speed Mismatch DTC C0550 ECU Malfunction DTC C0611 VIN Information Error You don't want to just start replacing parts , that could cost $$$$$$ . You could check connections at all the sensors an the control module , but other then that ,well . Your best bet , take it to a qualified repair shop .