New Holland NH 4130 – EHR Control Module: Remote No.3 EEPROM Error
Issue description
Indicates an internal memory or checksum error within the electronic control unit of the #3 rear remote valve. When the system fails to verify the memory checksum, it triggers this code and typically forces the valve into a failsafe mode.
Applies to these machines
26 machines- T6.120
- T6.140
- T6.150
- T6.160
- T6.175
- T7.170
- T7.185
- T7.200
- T7.210
- T7.235
- T7.260
- T7030
- T7040
- T7050
- T7060
- T8 Series
- T9 Series
- TS100A
- TS115A
- TS125A
- TS135A
- TM120
- TM130
- TM140
- TM155
- TM175
Check the cause
Attempt to clear the fault code using the tractor's diagnostic interface to rule out a transient voltage spike that may have temporarily corrupted the memory.
Check the tractor's system voltage, as unstable voltage (under-voltage or over-voltage) can cause EEPROM checksum errors.
Inspect the EHR Control Valve Wire Harness connecting to the #3 remote valve for corrosion, moisture ingress, or damaged pins that could interrupt CAN communication.
Repair steps
Depressurize
Turn off the tractor, disconnect the battery, and relieve all hydraulic pressure from the rear remotes.
Disconnect
Unplug the electrical harness connector from the #3 rear remote valve section.
Remove
Unbolt the tie-rods/mounting bolts holding the rear remote stack together and carefully remove the faulty #3 remote valve section.
Install
Insert the replacement EHR valve section and torque the stack bolts to OEM specifications. Reconnect the hydraulic lines and the electrical harness.
Reprogramming
Use the tractor's diagnostic interface (or armrest display, depending on the model) to program the new valve's processor so it identifies itself as 'Valve No. 3'.
Calibration
Perform an EHR calibration procedure to teach the system the neutral, extend, and retract set points of the new spool.
Parts you might need
(6)Rexroth Hydraulic Remote Valve
87328572Fits T6000 and TS-A series
Remote Valve Assembly
84266154Fits T6 and T7 series
Remote Valve Assembly
87311426Fits T6 and T7 series
Bosch Remote Valve
87526168Fits T7000 and TM series; replaces Bosch Mfg # 521 610 025
Hydraulic Valve Section Assembly
47594401Fits T7.XXX series
EHR Control Valve Wire Harness
84158327
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