Code 27 - p1-auxiliary #2 - disconnected, Code 28 - reserved, Code 29 - reserved – JLG 10MSP Service Manual User Manual
Page 132: Code 27 - p1-auxiliary #2 - disconnected -28, See table 6-28, Ge 6-28, 28 code 28 - reserved, 28 code 29 - reserved
SECTION 6 - TROUBLESHOOTING
6-28
– JLG Lift –
3121228
Code 27 - P1-Auxiliary #2 - Disconnected
Check For These Obvious Conditions First:
• Is machine equipped with a component on the Auxiliary #2 circuit.
Code 28 - RESERVED
Code 29 - RESERVED
Table 6-28. Code 27 - P1-Auxiliary #2 - Disconnected
STEP
ACTION
SPEC
YES
NO
1.
Is machine equipped with a component on the Auxiliary #2 circuit.
—
Go to Step 3
Got to Step 2
2.
At the Ground Control Module enter the programming mode, check if the
Auxiliary #2 open circuit detection is enabled.
Default = NO
Disable It
Replace Ground
Control Module
3.
Check voltage at the P1 connector on the Ground Control Module between
pin-8 and pin-1. Is reading within specification?
2 - 4 V DC
Replace Ground
Control Module
Go to Step 4
4.
Remove the wire terminals at the Aux. #2 component, check continuity of
each of the wires from pins-8 and 1 on the P1 connector to the Aux. #2
component.
—
Replace the
Component
Repair or
Replace Wiring