1990 Jeep Cherokee Q&A

1990 Jeep Cherokee Question: NON WORKING GUAGES ( can anyone answer this)

i have a 89' laredo none of the guages work such as rpm, oil press, temp, volts only guage that works is speedodmeter took out guage panel no broken wires or nothing checked blade fuses. Any help would be appreciated someone pleas help -
Answer 1
The problem may be in the wiring from the power source to the Instrument Clusters connector. Check continuity of all wires at the connector and at the Bulkhead connector (firewall). If all of these are ok, I would suspect a defective printed circuit board on the cluster. -
Comment 1
could there be a relay and if so how do i check not in manuel -