DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL
Page
50
PUMP
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-128
Armature current is too high during the
lift mode.
Status code displayed when the current in the
armature circuit is sustained above 400A for 70 sec.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Continued operation of vehicle in high
motor current condition.
•
Operate vehicle at lower motor current
condition for 70 seconds.
NO
GRAPHIC
FOR THIS
STATUS CODE
PUMP
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-141
Shorted thermal protector (TP1) or
transistor is over temperature.
This status code is displayed when the voltage at the
thermal protector is less than 3.8 volts.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
Reduced or no power to pump motor in control
range.
POSSIBLE CAUSE
Control is in thermal cut-back.
•
Allow control to cool, status code should
disappear.
SX-
2
CONTROL P
L
UG P
L
2
STATUS CODE 93 INPUT
STATUS CODE 93 INPUT
STATUS CODE 94 INPUT
STATUS CODE 95 INPUT
STATUS CODE 91 INPUT
STATUS CODE 90 INPUT
STATUS CODE 95 INPUT
STATUS CODE 94 INPUT
STATUS CODE 92 INPUT
BRUSH WEAR OUTPUT
OVER TEMP OUTPUT
2
1
3
4
5
6
8
9
15
16
11
13
14
10
12
19
20
21
*
*
*
TO TRACTION
PL2-10
SP
EE
D
4
SP
EE
D
2
SP
EED
1
7
ACCEL POT INPUT
17
LINE CONTACTOR
DRIVER
18
1A CONTACTOR
DRIVER
*
SP
EE
D
3
AR
M
A
T
U
R
E
*
FI
E
L
D
FU2
PUMP CONTROL
POWER
CONNECTION
P
A1
A2
N
A1
A2
*
A2
A1
N
P
September 2004