Buzzaround_SG_REVA_040711
12
Scenario 1: No Power
You insert the key into the key switch, and the battery condition meter indicates no battery power.
1) Check the circuit breaker (CB).
• Tripped? – Reset it. If it resets, then operate the scooter.
• Not tripped? – Go to the next step.
• Does not reset? – Go to step 4.
2) Remove the battery box from the scooter.
3) Measure voltage across BAT1 and BAT3 on the outside of the battery box.
• 0VDC? – Go to the next step.
• 12 – 17VDC? – Recharge and load test batteries. Go to “Charger Tests” if the batteries will not charge. Replace the
batteries if necessary.
• 18VDC – 25VDC? – Go to step 8.
4) Open the battery box.
5) Check for loose or corroded battery terminals. Clean with steel wool or wire brush and tighten if necessary.
6) Measure voltage at BAT- on one battery and BAT+ on the other battery. Take measurement at terminals ICH2 and
ICH5.
• 18 – 25VDC (or battery voltage)? – Replace the intermediate charger harness (ICH).
• 0 VDC? – Go to the next step.
7) Measure resistance across the circuit breaker terminals.
• OPEN? - Replace the circuit breaker.
• Less than 1 ohm? - Check the continuity between CB3 and CB4 (red wire) and between CB5 and CB6 (black wire).
Replace as necessary.
8) Reinstall the battery box.
9) Open the front console.
10) Disconnect the main harness (MH2) from the top dashboard (TD1). Are the pins on the connector (MH2) seated
correctly?
• Yes? – Go to the next step.
• No? – Reseat the pins, reconnect the main harness to top dashboard, and try to run the scooter.
11) Check the connector (TD1) on the top dashboard. Are the pins on the connector (TD1) seated correctly?
• Yes? – Replace the top dashboard.
• No? – Reseat the pins, reconnect TD1 on the top dashboard to MH2 the main harness and try and run the scooter.
12) Measure voltage across pin 7 (black wire) and pin 4 (red wire) on MH2.
• 18 – 25VDC (or battery voltage)? – Replace the top dashboard.
• 0VDC? – Go to the next step.
13) Reconnect MH2 to the top dashboard.
14) Reinstall the battery box.
15) Carefully tilt the scooter over on its side.
16) Remove the controller cover.
17) Disconnect the main harness (MH1) from the controller (CN7).
18) Measure voltage across pin 7 and pin 13 on CN7.
• 18 – 25VDC (or battery voltage)? – Replace the main harness.
• 0VDC? – Replace the controller.
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