I have a 99 (T) reg ford ranger 2.5d pick up. The cluster has stopped working, no speed, rev counter, fuel guage. Back lighting all ok and so are the ign lights etc. I have checked fuses in fuse box i
I am a BMW tech so have access to all tools etc. I have removed the cluster, but I do not have any wiring diagrams to continue checking out.
A service and glow plug replacement was carried out. The battery was disconnected, then reconnected later after the glow plugs were replaced. It was then the cluster stopped working, speedo, rev counetr, fuel guage all dead.
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You need to remove the instrument cluster and send it out for repair, the tach failure you have is caused by a defective tiny electric motor that drives the needle.
The instrument cluster is a hybrid electronic cluster (HEC) with two basic configurations, the base cluster and the optional instrument cluster. In addition to the two basic configurations, the SVT uses a modified optional cluster in combination with a separate oil pressure and oil temperature cluster. The base instrument cluster, optional instrument cluster and the oil pressure and oil temperature cluster receive and output information utilizing both hardwired circuitry and the standard corporate protocol (SCP) or the controller area network (CAN) communication network (2.3L only).
It is very important to understand:
where the input originates from.
all the information necessary in order for a feature to operate.
which module(s) receive(s) the input or command message.
does the module which received the input control the output of the feature, or does it output a message over the SCP or CAN network to another module?
which module controls the output of the feature. Its more then likely you need a new instrument cluster.
The cluster is really a computer module, so what needs is first make sure the signal for this gages are reaching the cluster if they are then the cluster needs repair, if not you may have a defective fuel level sensor and a problem with the vehicle speed sensor. Flip a coin, the sensor issues will be the most costly as the fuel tank must come out for replacement of the level sensor, that runs many hours of labor.
You have to remove the instrument cluster in order to replace the bulbs. This will include removing the knee panel under the steering wheel, the black trim piece in front of the instrument cluster, and possibly the trim and vents surrounding the radio, depending where the screws are located.
Some of the bulb holders may have notched the foil contacts on the board and the bulbs won't light after they are replaced. If that happens, you'll need to bend the tabs on the bulb holder slightly and use your finger nail to flatten out the dent in the foil.
It's not a quick fix, so you may want a dealer to service it. I suggest replacing your bulbs with LED's for longer life.
pull the instrument cluster out and check the printed circuit and connector to it from harness, plug it in and out three or four times, this may cure the problem.
you need to take down the dash,and your gonna have to take it out and do some soldering change a few resisters stuff like that circuits may even be oxidated
My 06 ranger is a 4 cyl model and I also am looking for a wiring diagram. Have you checked bulkhead connectors on the firewall for security, corrosion etc.? If you find the schematic on line please post the link. Good luck.
DaveBob55
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