Question about 1996 Volvo 850

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Gauge and instrument cluster intermittenly cuts out on a1996 850

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Check make sure you have good ground and all fuse and relays are good and alternator putting out good 12 volts. for odometer, replace your speed sensor unit, the sensor may be faulty and computer can not read the revolutions of the gear turning. For your RPM guage, check the wiring to your distributor, the sensor faulty or the wires contact are corroded having bad contact in the distributor, may have to replace the unit if not tolerable

Posted on Sep 05, 2009

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Posted on Jan 02, 2017

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Does the 98 Ford F-150 5.4 triton have two coolant sending units? I found the one on the intake and replaced it and still no gauge.


Has CHT - cylinder head temp. sensor . This sensor is a input to the PCM - engine computer . The PCM sends engine temp info on serial data network to the instrument cluster . I/C has a microprocessor inside . Have it check for DTC'S - diagnostic trouble codes . Not OBD2 codes , B - body codes . The gauge could be the problem , which means replacing the instrument cluster .
Engine coolant temperature information is received by the instrument cluster from the PCM over the SCP network. Temperatures over 121°C (275°F) will display hot (H). If the engine coolant temperature data is missing or invalid for five seconds, the instrument cluster will move the engine coolant temperature gauge below the cold (C) position.
The best way to diagnose this is with a scan tool , factory or a professional type . Know how the system works and not replacing parts is the proper way to diagnose .
U1073 D073 SCP (J1850) Invalid or Missing Data for Engine Coolant PCM CARRY OUT the PCM self-test.
  • A single gauge does not return to zero with the ignition switch off
  • Instrument cluster.
  • INSTALL a new instrument cluster; REFER to Instrument Cluster . TEST the system for normal operation.

  • Incorrect temperature gauge indication
  • Circuitry.
  • Instrument cluster.
  • PCM.
  • Engine coolant temperature sensor.
  • GO to Pinpoint Test F .

I should also point out that if the temp sensor were bad the vehicle may not run right .
Using the factory scan tool
Trigger instrument cluster active command ENGCOOLNT. Monitor the engine coolant temperature gauge while adjusting the ENGCOOLNT active command to read 50% and 100%.
  • Does the temperature gauge start at cold, move to half at 50%, and full hot at 100%?
Yes REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.

No INSTALL a new instrument cluster; REFER to Instrument Cluster . REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Your best bet , take it to a qualified repair shop !

May 29, 2017 | Ford Cars & Trucks

1 Answer

Polo rev counter


TAKE OUT THE INSTRUMENT CLUSTER . CHECK THE SOLDERINGS AT THE CONECTOR IF THEY ARE OK REPLACE INSTRUMENT CLUSTER ..

Mar 22, 2014 | 1995 Volkswagen Polo 1.6

1 Answer

Intrument cluster


If all gauges cut off, its is likely a power supply problem not the cluster. Try wiggling the rear connector, unplug and re-plug to "wipe" the connections.

Jan 26, 2014 | 1995 Eagle Vision

1 Answer

98 Town Car, how do I change dash lights, (fuel gauge bulb)


  1. Disconnect the negative battery cable.
  2. Remove the instrument cluster.
  3. Remove the retaining screws for the instrument cluster lens and cover assembly. Remove the cover and lens.
  4. Remove the retaining screws for the gauge or warning lamp to be replaced and remove the gauge or warning lamp. To install:
  5. Place the gauge or warning lamp into place and tighten the retaining screws.
  6. Install the instrument cluster lens and cover assembly.
  7. Install the instrument cluster.
  8. Connect the negative battery cable.

Feb 04, 2011 | 1998 Lincoln Town Car

1 Answer

Instrument panel not working. My instrument panel is blank, the prblem seems to be intermitten, it goes off and back on. My gas gauge is broke also, so I use the instrument panel to determine how much fuel...


Trailblazers are having lots of problems with faulty instrument clusters. They are also having lots of problems with the level sending unit in the tank. Usually something like that would require the use of scan tools and multimeters to test. If you have either you should be able to test fairly easy. You might want to try the dealer, they have been known to fix instrument clusters even out of warranty out of whats called a "goodwill" repair.

May 18, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

Trying to locate electrical junction to test fuel level sensor


Fuel Level Indication System The fuel level indication system is a magnetic gauge system. It consists of a magnetic fuel gauge (9280) mounted in the instrument cluster (10849) and a sending unit located in the fuel tank (9002) with an instrument cluster gauge amplifier (10E849) in series between the two. No instrument voltage regulator is used with this system. Fuel Gauge
The magnetic gauge movement consists of three primary coils, one of which is wound at a 90-degree angle to the other two. The coils form a magnetic field which varies in direction according to the variable resistance of the sender unit which is connected between two of them. A primary magnet, to which a shaft and pointer are attached, rotates to align to this primary field, resulting in pointer position. The bobbin/coil assembly is pressed into a metal housing which has two holes for dial mounting. There is no adjustment, calibration or maintenance required for these gauges. The instrument cluster amplifier is calibrated to the fuel gauge. The instrument cluster amplifier and fuel gauge must be replaced as a system. Instrument Cluster Gauge Amplifier/Check Gauge Module
The instrument cluster gauge amplifier electrically averages fuel sender readings so the fuel gauge displays actual fuel level and not fluctuations due to sloshing in fuel tank. The instrument cluster gauge amplifier is a small printed circuit board which latches into a pocket on the back of the instrument cluster. The electrical connections for ignition, ground, input from fuel sender and output to fuel gauge are made through a spring-type connector on the instrument cluster gauge amplifier to the instrument cluster printed circuit (10K843) on the instrument cluster. There are no provisions for calibration or adjustment of the instrument cluster gauge amplifier.
Fuel Sending Unit
The fuel sending unit consists of a variable screened resistor made up of a ceramic substrate. It is controlled by the action of an attached float in the fuel tank. When the fuel level is low, resistance in the sending unit is low. When the fuel level is high, the resistance in the sending unit is high. As the float moves from empty to full, the resistance will gradually and continuously increase. f9e3b50.gif

Mar 10, 2010 | 1997 Ford Ranger SuperCab

3 Answers

Gauges going bunkers


Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Avalanche instrument cluster repair

Jan 22, 2010 | 2004 Chevrolet Avalanche

1 Answer

Intermitten electrical problem with the instrument panel


look like shorted out cluster (intrument panel) get a second hand one its cheaper or body control module when it does the car dont start or goes good if it doesnt start bcm if it run bad cluster good luck pierre

Jul 31, 2009 | 1998 Pontiac Grand Am

1 Answer

Gas gauge no longer works


The light behind myRemove the cluster bezel from the instrument panel. See Cluster Bezel in this group for the procedures.
Remove the four screws that secure the instrument cluster to the instrument panel Instrument Cluster Remove/Install
Pull the instrument cluster rearward to disengage the two self-docking wire harness connectors
NOTE: The instrument cluster has two self-docking wire harness connectors that will be automatically aligned with, and connected to the instrument panel wire harness when the cluster is installed in the instrument panel.
Remove the instrument cluster from the vehicle.
Reverse the removal procedures to install. Tighten the mounting screws to 2.2 N·m (20 in. lbs.)
when I turn my headlights on. All the other gauges are lit, but not the gas gauge. How do I get in there to replace the bulb and fix this? Or is it a fuse problem? I have a 1998 jeep scout Thanks

May 14, 2008 | 2007 Jeep Scout

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