Efi Diagnostic Check - Cushman 84044 Maintenance Manual

6 MAINTENANCE

6.30 EFI DIAGNOSTIC CHECK ___________________________________________________

Suzuki Gas Engine units only
The electrical system is equipped with a plug in
connector which, when used with the diagnostic jumper
accessory (Part No. 2700920) will perform diagnostic
checks on various engine components.
Manual transmission: Engage parking brake, shift
transmission to neutral and turn the ignition switch to the
OFF position.
Automatic Transmission: Engage parking brak, place
gear selector in PARK and turn the ignition switch to the
OFF position.
Open the front cowl and locate the plug in connector
(Black/White and Black Wires) coming from the wire
harness below the brake fluid reservior.
To run the diagnostic test, plug the diagnostic jumper into
the plug-in connector. Turn ignition switch to the ON
Code Engine Component
11 Pressure Sender
12 Normal
13 Throttle Sensor
14 O2 Sensor
15 Crank Angle Sensor
16 Vehicle Speed Sensor
19 Water Temperature Sensor
Shift Solenoid #1
41
(Automatic Transmission only)
Shift Solenoid #2
42
(Automatic Transmission only)
Shift Solenoid #3
43
(Automatic Transmission only)
Shift Switch
46
(Automatic Transmission only)
GB-30
position. The brake fluid light at the lower left corner of
the dash panel will flash a diagnostic code.
The first digit of the code will be given first with a full
second pause between each 0.3 second flash, followed
by the second digit with no pause.
The
coresponds to which component and list possible
causes for each fault.
Voltage at pin 25 (Green/Yellow wire) of the 34 pin ECU connector is higher than 4.5 Volts or
lower than 0.19 Volts.
System operating normally
Voltage at pin 33 (Gray/Yellow wire) of the 34 pin ECU connector is higher than 4.73 Volts or
lower than 0.25 Volts
No signal for a length of time at pin 24 (Red/Blue wire) of the 34 pin ECU connector
While in starting mode, no signal is seen at pin 16 (Brown/Red wire) of the 34 pin ECU connector
No signal for a length of time at pin 16 (Orange wire) of the 26 pin ECU connector
Voltage at pin 32 (Green/White wire) of the 34 pin ECU connector is higher than 4.85 Volts or
lower than 0.15 Volts.
Open or short circuit at pin 27 (Blue/Black wire) of the 34 pin ECU connector. Should be 12 Volts
if gear selector is in the "L" position.
Open or short circuit at pin 28 (Blue/White wire) of the 34 pin ECU connector. Should be 12 Volts
if gear selector is in the "L" or "2"position.
Open or short circuit at pin 29 (Blue/Red wire) of the 34 pin ECU connector.
No sigal present at pin 18 (Green/Pink wire), and pin 19 (Orange Blue wire), and pin 20 (Orange/
Green wire), and pin 24 (Green/Blue wire), and pin 25 (Green wire) and pin 26 (Red wire) of the
26 pin ECU connector. OR signal present at more than one of pins 18, 19, 20, 24, 25 and 26 of
the 26 pin ECU connector
A code of 12 (System Normal) would turn the light on
for 0.3 seconds, a full second pause then two fast
flashes. (Flash-Pause-Flash-Flash)
A code of 46 (Shift swicth) would turn the light on four
times for 0.3 seconds and a full second pause, then
six fast flashes. (Flash-Pause-Flash-Pause-Flash-
Pause-Flash-Pause-Flash-Flash-Flash-Flash-
Flash-Flash)
following list shows
Possible Causes
which code number