DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL
Page
47
Revised May 2003
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.
P
U
MP
CO
NTRO
L
PLU
G
PL-
2
P2
P1
P18
P12
P19
P20
P21
PUMP CONTROL TEMP
P7
L
P17
ACCEL POT INPUT
*
*
*
S
PEED
2
S
PEED
1
*
SP
EED
3
*
SPE
ED
4
POWER CONNECTION
SUPPLIED BY CUSTOMER
*
KEY SW.
BATT (+)
P
*
FU4
FU2
LINE
CONTACTOR
*
*
A
R
M
A
T
URE
*
FI
E
LD
*
PUMP CONTROL
POWER CONNECTION
A1
A2
A1
A2
A2
A1
P
N
N
BATT (-)
PUMP
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-141
Open thermal protector (TP1) or
transistor is over temperature.
This status code is displayed when the voltage at the
thermal protector is greater than 2.3 volts.
MEMORY RECALL
NO
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.
P
U
MP
CO
NTRO
L
PLU
G
PL-
2
P2
P1
P18
P12
P19
P20
P21
PUMP CONTROL TEMP
P7
L
P17
ACCEL POT INPUT
*
*
*
S
PEED
2
S
PEED
1
*
SP
EED
3
*
SPE
ED
4
POWER CONNECTION
SUPPLIED BY CUSTOMER
*
KEY SW.
BATT (+)
P
*
FU4
FU2
LINE
CONTACTOR
*
*
A
R
M
A
T
URE
*
FI
E
LD
*
PUMP CONTROL
POWER CONNECTION
A1
A2
A1
A2
A2
A1
P
N
N
BATT (-)