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Instrument Cluster Circuit

Disconnect instrument cluster harness connectors "B" and "C". See Figure. Using DVOM, check circuit values at appropriate instrument cluster harness connectors and ensure values are as specified. See INSTRUMENT CLUSTER CIRCUIT VALUES  table. If circuit values are not as specified, repair appropriate circuit as necessary. See WIRING DIAGRAMS .

INSTRUMENT CLUSTER CIRCUIT VALUES

Tester Connection Condition Circuit Value
B2 & Ground Washer Level Warning Switch ON Continuity
B6 & B7 Light Control Rheostat In Full Right Position 8-12 K/Ohms
Light Control Rheostat In Full Left Position Zero Ohms
B10 & B7 Constant 8-12 K/Ohms
B14 & B7 Light Control Rheostat In Full Left Position No Continuity
C1 & Ground Ignition Switch In OFF Or ACC Position Zero Volts
Ignition Switch In ON Position Battery Voltage
C3 & Ground Constant Battery Voltage
C8 & Ground Constant Battery Voltage
C9 & Ground Light Control Switch In HI Or FLASH Position Battery Voltage
C11 & Ground Constant Continuity
C12 & Ground Light Control Switch In TAIL Or HEAD Position Battery Voltage
C14 & Ground Constant Battery Voltage
C15 & Ground Fuel Tank Full 4 Ohms
Fuel Tank Empty 107 Ohms
C20 & Ground Light Control Switch In HI Or FLASH Position Continuity
C22 & Ground Constant Continuity