Code 25 - Auxiliary #1 Circuit - Disconnected; Code 26 - Auxiliary #2 - Short Circuit - JLG 15MVL Series Service Maintenance Manual

Code 25 - Auxiliary #1 Circuit - Disconnected

Check For These Obvious Conditions First:
• Is machine equipped with a component on the Auxiliary #1 circuit.
STEP
1. Is machine equipped with a component on the Auxiliary #1 circuit.
2. At the Ground Control Module enter the programming mode, check if the
Auxiliary #1 open circuit detection is enabled.
3. Check voltage at the P1 connector on the Ground Control Module between
pin-9 and pin-2. Is reading within specification?
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.

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.
STEP
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?
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.
3121231
Table 6-29. Code 25 - Auxiliary #1 Circuit - Disconnected
ACTION
Table 6-30. Code 26 - Auxiliary #2 - Short Circuit
ACTION
– JLG Lift –
SECTION 6 - TROUBLESHOOTING
SPEC YES
— Go to Step 3
Default = NO Disable It
2 - 4 V DC Replace Ground
Control Module
— Replace the
Component
SPEC YES
0 - 2V DC Go to Step 2
— Replace the
Component
NO
Got to Step 2
Replace Ground
Control Module
Go to Step 4
Repair or
Replace Wiring
NO
Replace Ground
Control Module
Repair or
Replace Wiring
6-29