Hello, Need pin out voltages for a 98 grand cherokee larado connector to the cluster .( RHDrive )
Not willing to insert a new cluster untill loom checks out. My connector shows different to the infrmation provided by a friendly Adelaide jeep dealership. ( South Australia) Most manuals show this info but have only got wrangler and cherokee CD's not Grand cherokee 98 !!!!
Also, most diagrams show 2 ground terminals and mine reads as if there is no earth. I HAVE left and right indicators, one (fused at kisk panel fuse group OK ) constant 12 volts one 12 volt ign.start run, one dimmer control terminal, and 2 terminals reading 2.5 volts approx , assume these are the "bus" lines.
WHAT are the others and does any one know how to check out the new cluster to make sure it is the correct one ????
Have had an intermittent Failure of fuse control coils of auto shut down and fuel pump relays for several years now .fault goes before able to trace it. Longest the fault lasted was 20mins but still unable to find cause by discconecting items etc.As soon as I start looking for short in circuit before or in parallel with the relay coil circuits the fault disappears and I haveonly moved the power distribution box cover and tried to insert a test light in the circuit. Ffinally cluster has failed permently on all but hard wired items .ie no gauges and warning lights but dimmer control and ABS warning light working? . vehicle towed home. Fault gone no fuse blows but still no cluster. All other systems working .
My non genuine wiring diagrams show only imobiliser on same circuit but this system works although I am not sure if the chime worked immediately,. I think imobiliser is in module with sound device etc. But not sure .
Have stripped out loom around power distribution box - no visible damage and no electrical fault between relay coil to power control computer . Any way if there was an earth ing fault there the fuse would not blow. Must be a fault between fuse and relay but this goes into the main loom and difficult to get to. If I bypass it car starts now because there is not a problem. When I tried to bypass the fuse with another in line from hot side of fuse to relay input with the problem, the car started and then I found the problem goneso ofcoursethe car started . returned wires to original but cluster not working! !!!!!!*&^*^&%
cheers Kym Ware
ps i am a motor mechanic not an auto electrician!!!
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Fuel pump is good, but no fuel pressure? How did you determine that the pump is good?
Failing gages point towards a problem with the PCI data bus or the PCM itself. This takes quite some troubleshooting to find the cause.
There are many components connected to the PCI bus and any of them could bring the bus down. You can measure the voltage on pin 2 of the data connector on the left side of the drivers footwell area. A good bus voltage is around 2.5 V. There is a PCI bus disconnect plug under the steering tube. By removing the shorting cap, you will disconnect almost all components from the bus. PCM and SKIM will still be connected and you could try to run the engine. You will ot have instruments nor most of the other systems, but this is only to see if the PCM works ok. If it runs, then you will have to look which component or bus wire gives the problem.
On 1993-98 Jeep Grand Cherokee the OBD Diagnostic Link Connector is located under hood, passenger side, front engine area, corner, mounted on fenderwell. Other details (like GC repair manual) could find in my service profile. Try iy.
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REMOVAL & INSTALLATION Conventional Cluster
Fig. 1: Remove the trim screw covers on the driver's and . . .
Fig. 2: . . . passenger side of the instrument cluster
Fig. 3: Remove the upper trim panel retaining screws
Fig. 4: Remove the headlight switch knob
Fig. 5: Detach the electrical connectors for the trim panel and remove it from the vehicle
Fig. 6: Remove the instrument cluster retaining screws from either side of the cluster
Fig. 7: Remove the transmission range indicator cable
Fig. 8: Slide the cluster out and detach the electrical connectors and . . .
Fig. 9: . . . . remove the instrument cluster from the vehicle
Disconnect the negative battery cable.
On 1989 vehicles, disconnect the speedometer cable. On 1989 Crown Victoria and Grand Marquis, remove the headlight switch knob and shaft assembly.
Remove the instrument cluster trim cover attaching screws and remove the trim cover.
Except 1992-98 Grand Marquis, remove the lower steering column cover retaining screws and remove the lower cover. On 1992-98 Grand Marquis, remove the knee bolster retaining screws and remove the knee bolster.
On all except 1992-98 Grand Marquis, remove the lower half of the steering column shroud.
Remove the screw holding the transmission range indicator column bracket to the steering column. Detach the cable loop from the pin and cane shift lever. Remove the column bracket from the column.
Remove the 4 cluster retaining screws. Disconnect the cluster feed plugs from the receptacle and remove the cluster assembly.
Installation is the reverse of the removal procedure.
Electronic Cluster NOTE: The electronics within the electronic instrument cluster are not serviceable. In the event of an electronic failure, the entire instrument cluster must be replaced or returned to the manufacturer for repair.
Disconnect the negative battery cable and set the parking brake.
Unsnap the center moulding on the left and right sides of the instrument panel. Remove the steering column cover and column shroud.
Remove the knobs from the auto dim and auto lamp switches, if equipped. Remove the 13 screws retaining the instrument panel and pull the panel out.
Move the shift lever to the 1 position, if required, for easier access.
Detach the electrical connectors from the warning lamp module, switch module and center panel switches, if equipped.
Remove the instrument cluster carefully so as not to scratch the cluster lens. Detach the electrical connector from the front of the cluster.
Disconnect the transmission range indicator assembly from the cluster by carefully bending the bottom tab down and pulling the indicator assembly forward.
Pull the cluster out and detach the electrical connectors on the rear of the cluster. Remove the instrument cluster.
Installation is the reverse of the removal procedure.
call jeep and give them last 9 digits of your vin and ask for three things -Differential Type,Gear ratio, and Track lock- They will give you 1) Dana 35 or 44 2) Gear Ratio 3.31 or 3.73 3) Track Lock - yes/no