Tennant EC-H2O T12, Service Information Manual, Page: 71 / 178

T12 Service Information 9009917 (12-12)
4-3
TROUbLESHOOTING
****SELF-TEST***
STARTING
1
2
3
4
5
6
7
8
9
10
11
12
Testing Main
Scrub Brushes...
Testing Side
Scrub Brush...
Testing Vacuum
Fan Motors...
Testing Main
Scrub Actuator...
Testing Squeegee
Actuator...
Testing Side
Brush Actuator...
Testing Side
Pump...
Testing Side
Valve...
Testing Main
Valve...
Testing Horn
Output...
Testing Alarm
Output...
Testing Curtis CAN
Communication...
5 . The controller sequentially tests each output circuit
as shown below .
S1: **SELF-TEST**
< RESULTS >
STP006
T12 Self Test Codes
S1 S19
S1:Self Test
“Done” or “<Results>”
S19:Side Brush J3-2,3/Short
S2 S20 S2:Front/Left Br J5-1,2/Open S20:Side Act J5-2,3/Open
S3 S21 S3:Front/Left Br J5-1,2/Short S21:Side Act J5-2,3/Short
S4 S22
S4:Rear/Right Br J5-4,5/Open S22:Side Pump J5-5/Open
S5 S23 S5:Rear/Right Br J5-4,5/Short S23:Side Pump J5-5/Short
S6 S24 S6:Main Act J6-7,8/Open S24:Side Valve J5-4/Open
S7 S25 S7:Main Act J6-7,8/Short S25:Side Valve J5-4/Short
S8 S34
S8:Main Valve J6-2/Open S34:Ec-H2O Pump J4-4/Open
S9 S35 S9:Main Valve J6-2/Short S35:Ec-H2O Pump J4-4/Short
S10 S36 S10:Horn J6-3/Open S36:Ec-H2O Side Br. J4-5/Open
S11 S37 S11:Horn J6-3/Short S37:Ec-H2O Side Br. J4-5/Short
S12 S38 S12:Alarm J6-4/Open S38:Curtis CAN/J6-13,14 No Comm
S13 S50 S13:Alarm J6-4/Short S50:Scrub Module/Offline
S14 S51 S14:Vac Fan J3-2,3/Open S51:Pickup Module/Offline
S15 S52 S15:Vac Fan J3-2,3/Short S52:ECH2O Module/Offline
S16 S53 S16:Sqge Act. J5-2,3/Open S53:Side Module/Offline
S17 S17:Sqge Act. J5-2,3/Short
S18 S18:Side Brush J3-2,3/Open
CODE LCD MESSAGE CODE LCD MESSAGE
6 . The self test results are displayed in “jx-x,x” format .
jx = Connector, “-x,x” = Control board output pins as
shown on the electrical schematic .