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

Is machine equipped with a component on the Auxiliary #2 circuit.

—

Go to Step 3

Got to Step 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

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

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