Labels:text | screenshot | font | document | number | black and white | parallel OCR: DIAGNOSIS OF THE VEHICLE SPEED SENSOR AND DIGITAL RATIO ADAPTOR CONTROLLER (cont'd) PROBLEM POSSIBLE CAUSE CORRECTION Speedometer And 1. Inoperative digital ratio adapter, 1. Disconnect the digital ratio adapter, Odometer Do Not Operate Properly and place the ignition in run. Check for voltage between the pink/black wire in the harness and a good chassis ground. If the voltage is less than the battery voltage, check for an open or short in the pink/black wire. 2. Poor ground path from the digital ratio 2. Check for voltage between the pink/ adapter. black wire in the harness and the black/white wire. If the voltage is less than battery voltage. check for an 3. No signal from the vehicle speed sen- open or short in the black/white wire. 3. Raise and support the vehicle, start the engine, and place the transmission in drive. Check for AC voltage that changes with the engine rpm between the purple/white wire, and the light green/black wire at the digital ratio adapter. If there is not AC voltage at these wires, check for opens in the purple/white wire and the light green wire. If there are not shorts or opens. 4. Inoperative digital ratio adapter (speed- replace the vehicle speed sensor. 4. Raise and support, the vehicle start ometer output). the engine, and place the transmission in drive. Check for AC voltage that changes with the engine RPM, replace 5. Inoperative digital ratio adapter (cruise the digital ratio adapter. 5. Raise and support the vehicle, start output). the engine, and place the transmission in drive, Check for AC voltage that changes with the engine rpm between the yellow and the black/white wires at the digital ratio adapter connector (connector attached) if AC voltage valves with rpm, replace the digital ratio adapter. 6. Inoperative instrument cluster. 6. Refer to DIAGNOSIS OF THE ELEC. TRONIC INSTRUMENT CLUSTER in this section. DIAGNOSIS OF THE FUEL GAGE PROBLEM POSSIBLE CAUSE CORRECTION Gage Stays al "E" 1. No fuel. 2. Circuit is grounded. 1. Fill the fuel tank. 2. Disconnect the lead at the fuel tank. The gage should read past the "F". If the gage does not read past the "F". replace the fuel tank sender.If the gage stays at "E", find the ground in the circuit between the gage and the fuel tank.
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