Speedometer ON-VEHICLE INSPECTION OF SPEEDOMETER (a) Using a speedometer tester, inspect the speedometer for allowable indicating error and check the operation of the odometer. NOTE: Tire wear and tire over or under inflation will increase the indicating error. (b) Check the speedometer for pointer vibration and abnormal noises. NOTE: Pointer vibration can be caused by a loose speedometer cable. Standard indication (km/h) Allowable range (km/h) 20 18 - 23 40 20 - 44 60 60 - 64.5 80 80 - 85 100 100 - 105 120 120 - 125.5 140 140 - 146 160 160 - 167 Standard indication (mph) Allowable range (mph) 20 20 - 23 40 40 - 43.5 60 60 - 64 80 80 - 84.5 100 100 - 105 120 120 - 125.5 Tachometer ON-VEHICLE INSPECTION OF TACHOMETER (a) Connect a tune-up test tachometer and start the engine. (b) Compare the tester and tachometer indications. If the error is excessive, replace the tachometer. CAUTION: • Reversing the connection of the tachometer will damage the transistors and diodes inside. • When removing or installing the tachometer, be careful not to drop or subject it to severe shock. Temp. rpm 1000 3000 5000 7000 25°C DC13V ±100 ±200 ±200 ±300 Voltmeter INSPECTION OF VOLTMETER Compare the tester and voltmeter indications. If the error is excessive, replace the voltmeter.