Labels:text | screenshot | font | document | number | black and white | parallel OCR: DIAGNOSIS OF THE ELECTRONIC DIGITAL INSTRUMENT CLUSTER (cont'd) PROBLEM POSSIBLE CAUSE CORRECTION Speedometer And Odometers Do Not No vehicle speed sensor signal. Disconnect the large 17 pin connector from the cluster, and the connector from the Operate digital ratio adapter. Measure the resis tance between the wire at pin A1 of the cluster and the wire at pin B of the digital ratio adapter harness. If the resistance is above zero OHMs, and the vehicle speed sensor circuit is working properly, replace the instrument cluster. Cluster Display Does 1. Inoperative cluster control switch or 1. Disconnect the large 17 pin connector Not Switch Between Total And Trip wiring. at the cluster. Measure the resistance Odometer between pin A3 and ground. The resis- tance should be zero in one position, and open in the other. Il the switch does not respond in this manner repair the light green wire from the cluster to the switch, the switch, or the black 2. Inoperative cluster. wire from the switch to ground. 2. If the switch and wiring are correct. replace the cluster. Trip Odometer Does 1. Inoperative cluster control switch or 1. Disconnect the large 17 pin connector Not Reset wiring, at the cluster. Measure the resistance between pin A5 and ground. The resis- tance should be zero in one position. and open in the other. If the switch does not respond in this manner repair the light green/black wire from the cluster to the switch, the switch, or black wire from the switch to ground. 2. Inoperative cluster. 2. If the switch and wiring are correct, replace the cluster. Fuel Gage Is Inaccu- Shorts or opens in the wiring from the fuel Disconnect the fuel gage sender at the tank rate tank sender, or an inoperative fuel sender and connect one lead of J 33431 to the unit pink wire and the other to ground. Turn the ignition to the run position, and set the resistance dials of J 33431 to zero OHMs. The fuel gage should read empty. Set the resistance dials to 35 OHMs. The fuel gage should read half full (7 to 8 segments lit). Set the resistance dials to 90 OHMs. The fuel gage should read full.If the gage responds correctly, check the black wire 10 ground at the fuel sender unit. If the black wire is OK replace the fuel tank sender.lf the gage does not respond correctly to the test, check the pink wire from the fuel sender to the cluster. If this wire is OK replace the cluster. Low Fuel Indicator Inoperative cluster. Replace the cluster. Does Not Light With Low Fuel Level
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