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2002 Saturn Vue instrument cluster problems. The

2002 Saturn Vue instrument cluster problems. The instrument cluster on my Vue will sometimes lock-up, all gauges full deflection, or all gauges dead. All these symptoms are intermittent. I suspect bad ground or ECU. Will this show up on a scan?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Intermittant instrument cluster

The body controller (BCM) must send a message to the engine controller (PCM) to tell the PCM that it's OK to start and run when a theft system is involved. As long as the OK-to-run signal can make it to the PCM, all will be well.

But during the times when the gauges are flat, the bus communication system is probably crashed and there's no way to deliver the message. The PCM has no recourse but to disallow fuel at that point, killing the engine. The only thing that doesn't fit is that the starter isn't taken away at some point, but it may be something that doesn't happen in every model year.
The solution is with the communication bus, the CCD. It operates on two circuits, 2.5 volts each and connects to every module on the van that needs to share information. The instrument cluster printed circuit board is actually much more than just a board, it's a processor in its own rite. It controls gauges, telltale bulb illumination and supports the CCD bus both through voltage regulation and supplies the point of circuit termination (ground). The termination seems to be the key. Without ground, the bus voltage is pushed far above its normal 2.3 to 2.5 volt range, into the 7-volt area. Bus communication depends upon a voltage matrix very close to 2.5 volts, so this effectively crashes the network. Everything becomes a zero. One very good diagnostic tool for when the system crashes is to apply a firm, open-palm slap to the dash just above the instrument cluster. Works almost every time. While the problem can be temperature related (parked in sun), a good jolt usually brings it back online and allows the van to start and run. It seems ham fisted but it's almost impossible to diagnose by disassembly. The act of touching the area around the cluster normally brings it back and you're faced with the question of whether it was coincidence or not. I prefer the slap. Testing the data link connector (DLC), the trapezoid-shaped connector under the left dash area, will tell you if the bus is crashed or not. The third terminal from the left on each row (8 apiece) is CCD bus. Remember that 2.3 to 2.5 volts is normal while the key is on and the bus is active. You should see the voltage dancing, varying rapidly in response to data transmission if tested with a digital voltmeter. Anything above this is likely to be FAR above, indicating a slap is at hand... you know what I mean. The board isn't cheap... close to $450 and it requires a calibration before the tach or speedometer will operate. This may involve a trip to the dealer; I'm not sure if aftermarket scan tools can accomplish this task. Labor to install a board can also vary according to your repair facility.

Posted on Dec 04, 2008

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pippall
  • 1486 Answers

SOURCE: My 2003 Saturn Vue instrument panel stopped

The plug at the back of the panel has come lose.Remove the dash panel and push plug on firmly.Hope that was helpfull.

Posted on Aug 08, 2009

  • 523 Answers

SOURCE: instrument cluster inoperative, transmission shifting problems

These vans have had issues with the PIN connections to the instrument clusters. With time the solder on the main PIN connection will begin to fail. The good news this may be repaired at home. First you'll need to remove the instruments. To do so remove the dash components from around the instruments then the (4) screws) that hold the instruments in place. Carefully detach the wire connection from the back of it; take to a well lit area. Look for a PIN with a failed solder joint (this will appear as a slight black or grey circle. If found apply heat and let solder begin to flow; the allow to cool and reassemble. If you look at my history you'll see I've helped others with this issue. The attached link may help: http://dodgeforum.com/forum/dodge-caravan/197192-99-grand-caravan-intermittent-dead-dashboard.html

As for the transmission I expect this a seperate issue, possibly the BCM but I'd like to review further.
Please let me know if this assisted you,
Tom

Posted on Nov 06, 2009

  • 447 Answers

SOURCE: I've got a 2006 Saturn Vue that keeps getting

The most common source of water on the floor is a plugged a/c evaporator case drain hose. This drain is generally located down low on the engine side of the firewall at the passenger side and is usually a small short open ended hose that points down. Debris and bugs will clog this hose which makes the water that condenses on the evaporator [whenever the a/c is on] overflow and leak out of the heater/air conditioning housing and onto the floor. If it hasn't rained for some time yet you are still getting water on the floor I would bet on this hose being plugged. A puff of compressed air is enough to clean most of them out. Most sunroofs have one or two small drain holes that allow water to run down through the door pillars and onto the ground. If you pour a small amount of water around the top edges of the sunroof when it is closed you should soon see water dripping onto the ground under the outer edge of the vehicle. A few sunroofs just rely on tight weather stripping to keep the water out but those usually drip water on the driver or passenger if they are leaking. I see a lot of leaky windshields but again, it has to be raining for water to get on the floor from them.

Posted on Jun 14, 2010

ZJLimited
  • 17970 Answers

SOURCE: Instrument cluster (gauges) go off and on

First check the fuses; use this info like reference guide: ZJ-Secc-8W-Wiring-Diagrams

Hope helps (remember rated this).

Posted on Jul 05, 2010

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