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ELECTRICAL-BODY AND CHASSIS 8-253 Speedometer Off-Vehicle Inspection Remove the speedometer from the meter assembly and Tester Terminal terminal symbol Red (+) Black (-) Black (-) Red (+) IGN GND IGN GND ∞ 30.6 - 37.4k SEN GND SEN GND 28.8 - 35.2k ∞ 4P GND 4P GND 13.5 - 16.5k ∞ 4P - GND SEN - GND IGN - GND Note: Use the analog type circuit tester (range: × 1k). Speedometer Current Consumption Terminal symbol Current consumption Remarks IGN - GND + - 85 ± 15mA (when 12 ± 1V applied) No signal input Note: 1. Use the analog type circuit tester. 2. Since the current consumption fluctuates when the source voltage varies, check to be sure that the ± 1V. Tachometer On-Vehicle Inspection 1. Attach a tune-up tester to the engine. 2. Start the engine. 3. Compare the tachometer reading and the tester reading. If the tachometer indication is outside the permissible range, the tachometer must be replaced. 4. Gradually increase and decrease the engine speed. Note the movement of the tachometer needle. If the needle movement is sluggish, the tachometer must be replaced. Gasoline engine rpm Indication Permissible Range 1,000 940-1060 2,000 1875-2125 3,000 2850-3150 4,000 3820-4180 5,000 4820-5180 6,000 5820-6180 |