Easy checks from the factory book
Yamaha YDRE / Drive G29 DC (48 V)
YDRE DC · Moric controller · 3 A fuse · solenoid split
YDRE DC MODELS WIRING DIAGRAM, Figure 8-19
Full wire picture
YDRE DC MODELS WIRING DIAGRAM — YDRE Cruise, Figure 8-20
Wire bundle
MAIN CONTROLLER WIRING DIAGRAM – DC MODELS, Figure 8-24
Control wires
YDRE DC MODELS ELECTRICAL TROUBLESHOOTING FLOWCHART (Z-2 Diagnostic Tester)
TRACTION MOTOR — Troubleshooting – YDRE (Battery Models)
RESETTING MOTOR CONTROL UNIT / MCU MAIN HARNESS CONNECTOR – DC MODELS
Plug pins
REVERSE WARNING BUZZER DOES NOT WORK / CAR WILL NOT RUN AT RATED SPEED
CAR WILL NOT OPERATE IN EITHER DIRECTION – SOLENOID DOES NOT OPERATE
CAR WILL NOT OPERATE IN EITHER DIRECTION – SOLENOID DOES OPERATE
NO REGENERATIVE BRAKING OR ROLLAWAY PROTECTION
Z-2 TESTER FAILURE CHART – DC MODELS (sheet A)
Z-2 TESTER FAILURE CHART – DC MODELS (sheet B)
TROUBLESHOOTING USING GENIUS — Faults and Troubleshooting steps, page 9-38
TROUBLESHOOTING USING GENIUS — Faults and Troubleshooting steps (cont.), page 9-39
TROUBLESHOOTING USING GENIUS — Faults and Troubleshooting steps (cont.), page 9-40
TROUBLESHOOTING USING GENIUS — Faults and Troubleshooting steps (cont.), page 9-41
TROUBLESHOOTING USING GENIUS — Faults and Troubleshooting steps (cont.), page 9-42
TROUBLESHOOTING USING GENIUS — Faults and Troubleshooting steps (cont.), page 9-43
TROUBLESHOOTING USING GENIUS — Faults and Troubleshooting steps (cont.), page 9-44
YDRA/E Service Manual, YDRE DC MODELS WIRING DIAGRAM, Figure 8-19, page 8-15
40%
