9 - 43 SIGNALING SYSTEM ELEC – + ELEC – + 8. The speedometer fails to come on. 2. Voltage • Connect the pocket tester (DC 20 V) to the 1. Speed sensor meter assembly coupler as shown. • Connect the pocket tester (DC 20 V) to the Positive tester probe → brown 1 speed sensor coupler (wire harness side) Negative tester probe → black/white 2 as shown. Positive tester probe → white 1 Negative tester probe → black/blue 2 1 G/Y G/R Br/B Y/L Br B/W W L/Y L W B/L B/L 1 2 • Set the main switch to “ON”. 2 • Measure the voltage (12 V) of brown 1 and black/white 2 at the meter assembly • Turn the main switch to “ON”. coupler.
• Elevate the rear wheels and slowly rotate • Is the voltage within specification? them. • Measure the voltage of white and black/ YES NO blue. With each full rotation of the rear wheels, the voltage reading should cycle Replace the meter The wiring circuit from 0.6 V to 4.8 V to 0.6 V to 4.8 V. assembly. from the main switch • Is the speed sensor OK? to the meter assem- YES NO bly coupler is faulty and must be repaired. Replace the speed sensor. Replace the speed sensor. G/Y G/R Br/B Y/L Br B/W