IQ DISPLAY MODULE (IQDM) SERIES 2 AND IQDM-P DIAGNOSTICS
Faults Menu
2008-2011 IQ Plus Electric Vehicle Maintenance and Service Supplement
Page 12-9
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The vehicle speed controller should be checked for fault codes before any service is performed.
The speed controller, after detecting a fault, will respond in one or more of the following ways:
1. Reduce vehicle speed to zero by reducing armature current to zero
2. Reduce vehicle speed to zero by reducing field current to zero
3. Turn off Main Contactor
4. “Limp-Home:” Cause the vehicle to run at half speed
5. Gradually reduce the armature current limit
6. Quickly reduce the armature current until speed sensor pulses occur
7. Gradually reduce Regen Current Limit
8. SmartKey functions NOT enabled
9. PASSWORD TRIES count incremented
10. Set Internal Scaled Throttle Signal to Zero
11. Turn off Walk Away Relay
12. Activate Walk Away function
13. Activate Walk Away beeping immediately
FAULT RECOVERY
When a fault is detected by the speed controller, the speed controller will attempt to recover from the fault and
resume normal operation. In the case of an intermittent problem such as a loose wiring connection, the con-
troller
may
be able to recover and operate normally for a while, but the problem should be repaired before
placing the vehicle in service.
Depending on the type of fault, the controller will attempt to recover immediately after the condition clears or
after the accelerator pedal has been cycled (released and pressed again).
