Service and Repair Manual June 2021
Fault Codes
116 GS
â„¢
-84 • GS
â„¢
-90 Part No. 1306587GT
Red
Drive coil 2 (Y1A) fault.
High speed drive
function will not
operate.
R wiring.
Red
coil 3 (Y1B) fault.
High speed drive
function will not
operate.
Troubleshoot coil OR wiring.
Red
Proportional coil (Y9) fault.
Lift and outrigger
functions are disabled.
OR wiring.
Red
coil (Y8) fault.
Platform up function
inhibited.
Troubleshoot coil OR wiring.
Red
Platform down function
inhibited.
Troubleshoot coil OR wiring.
Red
ht turn coil (Y3) fault.
right function
Troubleshoot coil OR wiring.
Red
Left turn coil (Y4) fault.
Steer left function
inhibited.
Troubleshoot coil OR wiring.
Red
Brake release coil (Y2) fault
.
Troubleshoot coil OR wiring.
Red
1 coil (Y6) fault.
Drives slow or not at
all when elevated.
Troubleshoot coil OR wiring.
Red
1 coil (Y5) fault.
at
elevated.
Troubleshoot coil OR wiring.
Red
2 coil (Y6A) fault.
Drives slow or not at
all when elevated.
Troubleshoot coil OR wiring.
Red
2 coil (Y5A) fault.
t
when elevated.
Troubleshoot coil OR wiring.
Red
Value to low or Value to
high.
Elevated drive and
platform up disabled.
Troubleshoot oscillate left
valve coil (Y93) or wiring.
Red
to
Elevated drive and
platform up disabled.
Troubleshoot oscillate right
valve coil (Y94) or wiring.
Red
Check the engine oil level
OR check wiring from the oil
pressure switch to ECM OR
replace t
he oil pressure