Code 25 - auxiliary #1 circuit - disconnected, Code 26 - auxiliary #2 - short circuit, Code 25 - auxiliary #1 circuit - disconnected -29 – JLG 15/20MSP Service Manual User Manual
Page 149: Code 26 - auxiliary #2 - short circuit -29, Seetable 6-29, Ge 6-29, See table 6-30, 29 code 26 - auxiliary #2 - short circuit
SECTION 6 - TROUBLESHOOTING
3121231
– JLG Lift –
6-29
Code 25 - Auxiliary #1 Circuit - Disconnected
Check For These Obvious Conditions First:
• Is machine equipped with a component on the Auxiliary #1 circuit.
Code 26 - Auxiliary #2 - Short Circuit
Check For These Obvious Conditions First:
• Damaged wiring in the Auxiliary #2 Component wiring harness or a damaged Component.
Table 6-29. Code 25 - Auxiliary #1 Circuit - Disconnected
STEP
ACTION
SPEC
YES
NO
1.
Is machine equipped with a component on the Auxiliary #1 circuit.
—
Go to Step 3
Got to Step 2
2.
At the Ground Control Module enter the programming mode, check if the
Auxiliary #1 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-9 and pin-2. Is reading within specification?
2 - 4 V DC
Replace Ground
Control Module
Go to Step 4
4.
Remove the wire terminals at the Aux. #1 component, check continuity of
each of the wires from pins-9 and 2 on the P1 connector to the Aux. #1
component.
—
Replace the
Component
Repair or
Replace Wiring
Table 6-30. Code 26 - Auxiliary #2 - Short Circuit
STEP
ACTION
SPEC
YES
NO
1.
At the Ground Control Module, P1 connector, check the voltage across
pins-8 and 1 to the Aux. #2 component. Is reading within specification?
0 - 2V DC
Go to Step 2
Replace Ground
Control Module
2.
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 end.
—
Replace the
Component
Repair or
Replace Wiring