Tennant EC-H2O T12, Service Information Manual, Page: 110 / 178

4-42
T12 Service Information 9009917 (12-12)
TROUbLESHOOTING
Propel Subsystem, Forward
B- F
rom
S
tandoff
S-5 Seat Switch (N.O.)
Amer
Encoder
Cable
Battery Po
Battery Negative -
FU1
80A
Swit
ched B+
From Buss Bar
Swit
ched B+
To: T
hr
ottle
Sensor (
GND
)
To: Curtis 1232
(I/O GND)
To: Back-Up
Light Circuit
PMC014
FWD
REV
6
2
8
B A
5
4
J1-33
GND Cable
J1-34
J1-21
W/WHT
V/GRN
U/ORN
J1-3
J1-4
J1-13
J1-24
BL
U2
J1-32 J1-26
J1-31
J1-7
J1-18 J1-15
66/BL
U
61/PNK
62/BRN 12/BRN
17/PUR
Propel Motor Assembly
17/PUR
15/GRN
Temp S
ender
B
ra
ke
Solenoid
59/WHT
58GRY
RED1 WHT5 BLK6
YEL
T2
B1
B2
T1
YEL
J1-16 J1-35 J1-23
P1-C
BLU
YEL
P1-B
P1-D
BLK
P1-A
RED
J1-22
J1-9
J1-1
B+
J1-29
J1-28
J1-25
1
MTR
Curtis 1232
Controller
PROG +
TX
RX
B+
KSI
INTERLOCK
FWD
FWD/REV Switch
Throttle Sensor
REV
B -
GND
B+
THROTTLE
BRAKE
CAN TERM L
CAN TERM H
U
DRV3
DRV4
DR
V1 THERMIST
OR
I/O GND PHASE A PHASE B +5V DR
V2
COIL RETURN
V
W
BR
AKE IN
(0-5 v
dc)
(0-5
vdc) THR
O
TTLE
CAN -
8/GR
Y
8/GR
Y
16/BLU
18/GRY
9/WHT
11/PNK
14/YEL
58/GRY
58/GRY
CAN +
Note: Key Switch ON
Propel
Enabled
• Seat Switch Closed
• Foot Throttle
Command
• Fwd/Rev Switch Input
• Seat Switch Open
• Neutral-Ready State
• Brake Command
• Curtis 1232 Fault
Disabled
Operational Matrix: