Question about Buick Riviera

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Digital dash panel read 00 and error black. do i remove the ipc due to no communication to the bcm. 1992 buick riviera.

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6ya6ya
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Posted on Jan 02, 2017

  • 599 Answers

SOURCE: heater blower not working in 1995 buick riviera

you're in luck... many aren't so lucky...1.5 hrs book time so it is under dash and no you do not have to remove dash to get to it .......be well

Posted on Dec 16, 2008

  • 1118 Answers

SOURCE: need glove compartment latch assembly for 1989

Salvage yard is your best bet to find the latch, and most likely the cheapest, I dought you can get one from a dealer being that old, you can also try National parts depot, or Original parts groupe, or Year one, they might have it. There might be other buicks that will interchange or other G.M. products.

Posted on Apr 08, 2009

  • 850 Answers

SOURCE: fuel pump

usually in the top of the fuel tank where the sender unit is look in the trunk for the wire & the plate [cover]

Posted on Jul 18, 2009

  • 1 Answer

SOURCE: How do I disassemble the dash and steering column

Here is what I learned without a manual. (You may find that you have to use the tilt mechanism to move the steering wheel up and down in the process to gain access to fasteners)
1. Remove plastic pins on underside of the upper dashboard. About 7 of these that can be pried out with a large flat screwdriver. Careful to catch them all and keep both pieces.
2. Remove the lower dashboard trim panel and set aside.
3. Using a small Torx head driver remove all the torx fasteners along the upper instrument panel.
4. Remove the side panel cover on the driver's side (the cover that the fusebox cover pops into). This side cover is held in place at 3 slots, and needs slid down slightly as you remove it.
5. Unscrew the phillips head screw that you see connecting to the instrument panel face.
6. Go to the passenger side and repeat steps 4 and 5.
DO NOT TRY TO REMOVE THE MAIN DASH PANEL YET
7. On the drivers side, gently pull the main dash panel out a little ways and disconnect the plug to the light switch.
As I remember the main dash fascia panel is ready to be removed now. The A/C vents will come out with it. Make sure all the fasteners are removed from the top. Gently pry out the bottom, and then slide it down and remove it. Hint: Place the steering wheel in the fully tilted down position. Hint 2: You can lift up on the upper dashboard pad to assist in clearing all the top mounting tabs.
7. Using a 10 mm socket or torx, depending on your car, remove the bolts that hold the lower dash panel on the driver's side(These bolts are above your shins when seated in the driver's seat.)
8. Using a 10 mm socket remove the bolts that hold the top two corners of the lower dash panel (One on each side).
9. Unplug the traction control switch.
Disconnect the flexible tubing on the right side (just pull it off the connector) and disconnect the wiring plug that is down a few inches parallel to the flexible tubing. An option here is to pop the whole vent/grille out and leave the tubing and wiring intact.
10. Now you can remove the steering column surround. You need a torx socket, very small to do this...Sorry don't know the size but it was the smalles one in my kit. All fasteners are installed from the underside.
11. Start with the one you can't easily see. It is in the dark recesses by the tilt column lever.
12. Remove the other torx fasteners by accessing them through the holes. If you're socket is too thick or short you will not be able to remove the one in the middle, closes to the dashboard. Your choice, buy a new socket or just break the plastic off around that one.
13. You now have access to the lock cylinder and ignition switch. You will need an even smaller torx head to remove the ignition switch. The lock sylinder is removed by pressing in on the spring loaded release about 2 inches from the keyhole, on the side closest to the dashboard. The key should be in the run position during assembly and disassembly.
14. You can remove the steering wheel for easier access, but you do not have to do so to work on some of the components in the column.

Hope I didn't miss too many steps.

Posted on Sep 07, 2009

  • 30 Answers

SOURCE: 1992 buick lesabre no dash lights but all other

It might just be a fuse look at the fuses and check them.

Posted on Sep 24, 2009

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Where are all the ground wires located on a 2008 chevy cobalt?


It wouldn't be a ground problem If it were the whole instrument cluster would be dead . Checking the BCM an the IPC for DTC'S - diagnostic trouble codes is the proper way to diagnose this type problem . Not worrying about grounds .
Odometer
The vehicle odometer is calculated and stored electronically in the body control module (BCM) and is sent via the serial data circuit to the instrument panel cluster (IPC) for display. The BCM calculates and stores the mileage based on the vehicle speed serial data information from the PCM/ECM. The IPC displays the season odometer information from the BCM in the driver information center (DIC). The odometer will display error if the IPC detects an invalid odometer data from the BCM. After an invalid odometer data is received from the BCM, the IPC will display the last known odometer reading for 1.5 seconds before error is displayed in the DIC.
Speedometer
The instrument panel cluster (IPC) displays the vehicle speed based on serial data message from the body control module (BCM). The BCM receives vehicle speed data from the PCM/ECM via the serial data circuit. The speedometer will default to 0 km/h (0 mph) if:
• The PCM/ECM detects a malfunction in the vehicle speed sensor circuit.
• The BCM detects a loss of serial data communications with the PCM/ECM.
• The IPC detects a loss of serial data communications with the BCM.

Your best bet would be to take it to the dealer !

Apr 19, 2017 | 2008 Chevrolet Cobalt

1 Answer

2007 Chevy Malibu won't start, odometer reads error


The odometer will display 'error' if an internal IPC memory failure is detected or if there is a serial data communication fault between the ECM and the BCM. IPC instrument panel cluster .
Circuit Description
The communication among control modules is performed through the GMLAN high speed serial data circuit and the GMLAN low speed serial data circuit. The modules that need real time communication are attached to the high speed GMLAN network. The body control module (BCM) is the gateway between the networks. The purpose of the gateway is to translate serial data messages between the GMLAN high speed buss and the GMLAN low speed buss. The gateway will interact with each network according to that network's transmission protocol. Refer to Body Control System Description and Operation for more information about the gateway.
Your best bet is to take your vehicle to the dealer , sorry !

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1 Answer

I have a 2010 Chevy impala LS instrument cluster and it has a 20 pin plug I'm trying to figure out which wire's on the back of the cluster are for the speed sensor, rpm, gas, and temp wires.


Boy your way off base . All the gauges are inputs from the ECM - engine computer . The VSS - vehicle speed sensor , ETC - engine coolant temp sensor , sending unit in the fuel tank , All this sensors input the engine computer . The PCM then sends this info on the GMLAN serial data bus ,communications network . The Instrument cluster has a microprocessor inside that translates this info an controls the gauges. You probably have an instrument cluster problem or a communication network problem . Your best bet is to take your vehicle to the dealer or some other qualified repair shop. Need to have it checked for DTC'S - diagnostic trouble codes.
Indicators and Warning Messages
Refer to Indicator/Warning Message Description and Operation.
Engine Coolant Temperature Gage
The instrument panel cluster (IPC) displays the engine coolant temperature as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the engine coolant temperature. The IPC receives the coolant temperature information via serial data message from the body control module (BCM). The engine coolant temperature gage defaults to 60?°C (140?°F) or below if:
?€¢
The ECM detects a malfunction in the engine coolant temperature sensor circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the BCM.
Fuel Gage
The instrument panel cluster (IPC) displays the fuel level as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the fuel level percent. The body control module (BCM) sends the fuel level information from the ECM to the IPC via a serial data message indicating the fuel level percent. The fuel gage defaults to empty if:
?€¢
The ECM detects a malfunction in the fuel level sensor circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the BCM.
When the fuel level is less than a pre-determined value, the low fuel indicator illuminates in the IPC.
Odometer
The vehicle odometer is calculated and stored electronically in the instrument panel cluster (IPC). The IPC contains a season odometer and trip odometer A or B. Momentarily press the trip/fuel button in order to toggle between the season odometer and the trip odometer. Press the set/reset button for greater than 0.25 seconds, while the trip odometer is displayed, in order to reset the trip odometer. The IPC displays the vehicle mileage and trip mileage as determined by the engine control module (ECM). The IPC calculates the mileage based on the serial data vehicle speed information from the ECM. The odometer will display 'error' if an internal IPC memory failure is detected. The odometer displays either miles or kilometers and can be set through the customization menu in the driver information center (DIC).
PRNDL Display
The instrument panel cluster (IPC) displays the selected gear position as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the gear position. The PRNDL display blanks if:
?€¢
The ECM detects a malfunction in the transmission range switch circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the body control module (BCM).
Speedometer
The instrument panel cluster (IPC) displays the vehicle speed as determined by the engine control module (ECM). The IPC calculates the mileage based on serial data vehicle speed information from the ECM. The IPC receives vehicle speed information from the body control module (BCM) via a serial data message. The speedometer defaults to 0 km/h (0 mph) if the IPC detects a loss of serial data communications with the ECM or BCM.
Tachometer
The instrument panel cluster (IPC) displays the engine speed as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the engine speed. The IPC receives the engine speed information from the body control module (BCM) via a serial data message. The tachometer will default to 0 RPM if:
?€¢
The ECM detects a malfunction in the engine speed sensor circuit.

?€¢
The IPC detects a loss of serial data communications with the ECM.

?€¢
The IPC detects a loss of serial data communications with the BCM.

How to Diagnose Controller Area Network CAN Suggest you read up on C.A.N.

May 14, 2016 | Cars & Trucks

1 Answer

While driving antitheft light comes on and all the gauges go flat,car keeps runnig,want to disable system,not sure what to look for


Before doing something drastic ,have it checked out for DTC'S - diagnostic trouble codes . It may not be the anti-theft system ,gauges going flat would be more like a communication problem between modules . PCM / BCM / instrument cluster etc.. That also could cause theft light coming on . If your not sure what to look for ,take it to a ASE certified professional . You may render your vehicle useless if you don't know what your doing .
Serial Data Power Mode Master
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle, the PMM is the body control module (BCM). The PMM receives 3 discrete ignition switch signals to differentiate which power mode will be sent over the Serial Data circuits. The 3-wire Ignition Switch table below illustrates the state of these inputs in correspondence to the ignition switch position:
Serial Data Messages The modules that depend exclusively on serial data messages for power modes. stay in the state dictated by the last valid PMM message until they can check for the engine run flag status on the serial data circuits. If the PMM fails, the modules monitor the serial data circuit for the engine run flag serial data. If the engine run flag serial data is True, indicating that the engine is running, the modules fail-safe to RUN. In this state, the modules and their subsystems can support all operator requirements. If the engine run flag serial data is False, indicating that the engine is not running, the modules fail-safe to OFF-AWAKE. In this state, the modules are constantly checking for a change status message on the serial data circuits and can respond to both local inputs and serial data inputs from other modules on the vehicle.
Indicators and Warning Messages
Refer to Indicator/Warning Message Description and Operation .
Engine Coolant Temperature Gage
The instrument panel cluster (IPC) displays the engine coolant temperature as determined by the powertrain control module (PCM) or the engine control module (ECM). The IPC receives a serial data message from the PCM/ECM indicating the engine coolant temperature. The engine coolant temperature gage defaults to 38?°C (100?°F) if:
?€¢
The PCM/ECM detects a malfunction in the engine coolant temperature sensor circuit.


?€¢
The IPC detects a loss of serial data communications from the BCM.

Fuel Gage
The instrument panel cluster (IPC) displays the fuel level as determined by the powertrain control module (PCM) or the engine control module (ECM). The IPC receives a serial data message from the body control module (BCM) indicating the fuel level. The fuel gage defaults to E (empty) if:
?€¢
The PCM/ECM detects a malfunction in the fuel level sensor circuit.


?€¢
The IPC detects a loss of serial data communications from the BCM.

When the fuel level is less than 14 percent, the low fuel indicator illuminates.
Odometer
The instrument panel cluster (IPC) contains a season odometer and a trip odometer. Momentarily press the trip/reset switch in order to toggle between the season odometer and the trip odometer. Press the trip/reset switch for greater than 2 seconds, while the trip odometer is displayed, in order to reset the trip odometer. The odometer is calculated and stored electronically in the body control module (BCM). The BCM uses the vehicle speed information from the powertrain control module (PCM) to calculate the odometer. The odometer displays 'error' if an internal IPC memory failure is detected. The IPC stores a backup copy of the odometer value incase the IPC stops receiving a valid odometer value from the BCM.
Speedometer
The instrument panel cluster (IPC) displays the vehicle speed based on the information from the ECM/PCM. The IPC receives the vehicle speed information from the BCM via the serial data circuit. The speedometer defaults to 0 kmh (0 mph) when the following occurs:
?€¢
The powertrain control module (PCM) or the engine control module (ECM) detects a malfunction in the vehicle speed sensor circuit.


?€¢
The IPC detects a loss of serial data communication from the BCM.

Tachometer
The instrument panel cluster (IPC) displays the engine speed as determined by the powertrain control module (PCM) or the engine control module (ECM). The IPC receives a serial data message from the body control module (BCM) indicating the engine speed. The tachometer will default to 0 RPM if:
?€¢
The PCM/ECM detects a malfunction in the engine speed sensor circuit.


?€¢
The IPC detects a loss of serial data communication from the BCM.

Apr 07, 2016 | 2006 Pontiac G6

1 Answer

My dash in my 2006 canyon isn't working, can't find the problem


Did you have the vehicle hooked to a factory scan tool to see if it will talk to the scan tool . Your instrument cluster is electronic an has a microprocessor inside , it is connected on the serial data communication network or bus as it is called . It's hard to find a problem when you don't know how it works >
All the gauges in the instrument cluster receive there info from the ECM - BCM engine an body computers on the data bus .
The instrument panel cluster (IPC) displays the vehicle speed based on the information from the engine control module (ECM). The IPC receives a serial data message from the BCM indicating the vehicle speed.
PRND321 Display
The instrument panel cluster (IPC) displays the selected gear position as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the gear position. The PRND321 display blanks if:
?€¢
The ECM detects a malfunction in the transmission range switch circuit.


?€¢
The IPC detects a loss of serial data communications with the BCM.


?€¢
The BCM detects a loss of serial data communications with the ECM.


This you should take to a ASE qualified repair facility or the dealer ! It is possible to short out the data bus an bring down the system , meaning nothing on the vehicle will work !

Sep 24, 2015 | Cars & Trucks

1 Answer

I have a 2005 buick lasabre custom that did not come with the DIC (driver information center)Can I purchase the dic and install it in my 2005 custom lasabre.


No. This is a part of the IPC and the vehicle configuration in the BCM would have to be changed, which, due to your VIN, will not allow for programming. The IPC is VIN burnt, as is the BCM.

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1 Answer

Intermittent Digital Dash


check the dash is sitting right, push on the dash. if this fixes it then you have a bad connection to the board pins on the back. if not there is a board in the dash that has failed usually down to a capacitor going, this age being a 91 model it dont cost a;lot for the capacitor/s to be changed but you will need some sodering skills to replace it/them.

Mar 06, 2014 | 1991 Buick Riviera

1 Answer

Intermittent digital dash operation


The 1991 Riviera and Reatta had power supply modules which we often had problems with at the dealership when they were still under warranty. Sometimes you could tap on them and make the problem come and go to diagnose.

Mar 06, 2014 | 1991 Buick Riviera

1 Answer

Where can I find the wiring diagram for this Chevy Colorado 2007 for the Speedometer. I bought this Truck to this local Car Dealer with Speedometer doesn't function at all. I want to try to see what...


Your speedometer is controlled by your computer network. The vehicle speed sensor (VSS) sends a signal to the Body Control Module (BCM) which then relays the speed sensor data via the UART data lines to the Powertrain Control Module (PCM) and the Instrument Panel Cluster (IPC). To find out why your speedometer is not functioning, you must FIRST scan your ENTIRE computer network for possible fault codes. It is possible that either the VSS is defective or the BCM is not able to relay the information due to a communications fault, or the BCM is relaying the information and the IPC is unable to receive the information due to a communications fault, or the IPC itself is defective. Wiring diagrams will be of no use until you determine which parts of the network is receiving the information from the VSS and which parts are not. This will require the use of a scan tool that can not only read generic OBD fault codes, but also access and display codes and live data from the BCM, PCM and IPC.

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