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Instrument Cluster Circuit

Remove instrument cluster. Disconnect harness connectors "A" and "B". See Fig 1. Using DVOM, ensure each circuit indicates appropriate value under specified condition. See INSTRUMENT CLUSTER CIRCUIT VALUES  table. Repair as necessary. See WIRING DIAGRAMS .

INSTRUMENT CLUSTER CIRCUIT VALUES

Terminal Condition Value
A1 & Ground Ignition On Battery Voltage
A4 & A6 Always About 10,000 Ohms
A13 & Ground Always Battery Voltage
A14 & Ground Always Battery Voltage
A15 & Ground Headlights On Battery Voltage
A22 & Ground Always Continuity
B1 & Ground Ignition On Battery Voltage
B3 & B4 Always Continuity
B7 & Ground Headlights On, High Beam Continuity
B8 & Ground Always Continuity
B10 & Ground Washer Level Switch Float Down Continuity
Fig 1: Identifying Instrument Cluster & Circuit Plate Terminals
G99H51497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002