11
Quick Reference Guide – Excel with PowerDrive Charger
IQ DISPLAY MODULE (IQDM) AND IQDM-P
DIAGNOSTICS: EXCEL SYSTEM WITH
POWERDRIVE CHARGER
QUICK REFERENCE GUIDE – EXCEL WITH POWERDRIVE CHARGER
OPERATION:
Change screen contrast for better viewing by selecting the following: Programmer Setup, Program, LCD Contrast
Preset Favorites: Select a frequently viewed screen, push and hold one of the three yellow keys until the display reads, “1,2,3 Bookmark Set”.
Quick Programming: When changing Code A,B,C, Vehicle S/N, or Vehicle Decal, press and hold either the Plus (+) or Minus (-) key and the yellow
keys simultaneously starting with yellow key 1, then 2, and finally 3.
CONTROLLER FAULTS:
Anti Tamper:
If car not equipped with Visage, make sure Control Mode
is set to zero (0).
Main Driver Overcurrent:
Replace controller.
Current Sense Fault:
Clear the Fault History in IQDM. If fault does
not return and car operates normally, do not replace controller. If fault
remains in System Faults, or Fault History after clearing, and car will not
operate, replace controller.
Main Dropout:
Solenoid or any component before it in circuit could be at
fault. Check components from key switch to solenoid and connections.
FLD Missing:
Check in order; orange or blue wire broke or disconnected
at motor/controller, short in motor. If good, replace controller.
Main Dropout 2:
Effect more than the cause, see other faults that
accompany Main Dropout 2.
HPD:
Check throttle %. If at zero (0), driver issue.
Main Weld:
Replace solenoid, if it doesn’t correct fault of car running at
half speed, check accessory wiring.
HW Failsafe:
Replace controller.
Motor Stall:
If car moves freely, issue not with vehicle, operator error.
Incorrect Password:
Incorrect code being entered into controller, check
code A,B,C.
Neg. IA 250 or Neg. IA 300:
This is an effect of excessive regen, not a
fault. Monitor other faults.
Low Battery Voltage:
Check Battery Voltage Under a Load less than 34
volts, could be an effect, not a cause.
Overage Voltage:
Controller reads 72 volts or more, it’s an effect, not a
cause. See other faults that accompany OV.
M (Main) Coil Open:
Broken or disconnected coil wire (B+ or B-), a
defective solenoid coil. Replace solenoid.
Speed Sensor:
Check connection, replace speed sensor.
M– Shorted:
Replace controller.
Thermal (TEMP) Cutback:
Controller heatsink rises above 185° F (85°
C), increased resistance causes issue.
Main Driver Off:
Replace controller.
Throttle Fault:
Possible MCOR3 failure, perform additional diagnostic if
car is running.
Main Driver On:
Replace controller.
WHEN IQDM–P IS NOT COMMUNICATING WITH CONTROLLER, CHECK THE FOLLOWING COMPONENTS:
The main connection port is corroded. Plug directly into the controller.
The battery pack voltage is below 32 volts. Check pack voltage to see if
it is above 32 volts.
The DC cord is plugged into the car. Unplug DC Cord.
Grey wire (pin # 9) to controller (16-pin connector) is loose or broken.
The solenoid lockout circuit has failed. Check for voltage on Blue wire
in 6 pin OBC connector.
See Test Procedure 2 – Onboard Computer
Solenoid Lockout Circuit on page 13-15.
15 Amp fuse in the harness has failed (Precedent Car only).
Tow/Run switch is in “Tow” position. Switch to “Run” position.
Sonic weld(s) in Tow switch circuit failed (wire harnesses vary; see
wiring schematic for that model car)
The Tow circuit has failed. Check Tow switch, 16-pin connector, and
wire harness.
The controller has failed.
INTRODUCTORY DISPLAY
Immediately after the handset is connected to the vehicle, it begins loading the vehicle speed controller information.
After a few seconds, the screen displays the following menu items:
• Program (IQDM-P only)
Page 11-2
2014 Precedent
®
Golf Car Maintenance and Service Manual
Summary of Contents for Precedent 2014
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