Electro-Hydraulic Options Service Codes (EHo)
Symptom Problem Solution

CODE EHo 10

Independent link suspension axle left cylinder position sensor

See your John Deere Dealer as soon as possible

CODE EHo 11

Independent link suspension right cylinder position sensor

See your John Deere Dealer as soon as possible

CODE EHo 17

Front brake pressure sensor

See your John Deere Dealer as soon as possible

CODE EHo 21

Sensor supply voltage out of range

See your John Deere Dealer as soon as possible

CODE EHo 22, 23

Battery voltage out of range

See your John Deere Dealer as soon as possible

CODE EHo 37, 38

Independent link suspension calibration

See your John Deere Dealer as soon as possible

CODE EHo 68

Front brake solenoid or pressure sensor

See your John Deere Dealer as soon as possible

CODE EHo 90

Low hydraulic oil

Check hydraulic oil level and add as required

CODE EHo 101, 102, 103

Independent link suspension axle raise/lower command problem

See your John Deere Dealer as soon as possible

CODE EHo 120

CCD communications is not available

See your John Deere Dealer as soon as possible

CODE EHo 121

Tractor wheel not received

See your John Deere Dealer as soon as possible

CODE EHo 123

Engine speed not received

See your John Deere Dealer as soon as possible

CODE EHo 124

Hydraulic oil temperature not received

See your John Deere Dealer as soon as possible

CODE EHo 125

Brake pedal switch status not received

See your John Deere Dealer as soon as possible

RX15494,00000CC -19-10SEP01-1/2

Symptom Problem Solution

CODE EHo 127

Differential lock status not received

See your John Deere Dealer as soon as possible

CODE EHo 128

Hitch up/down switch status not received

See your John Deere Dealer as soon as possible

CODE EHo 129

Hitch position was not received

See your John Deere Dealer as soon as possible

CODE EHo 161

Front brake solenoid circuit failure

See your John Deere Dealer as soon as possible

CODE EHo 171

Raise/lower solenoid failure

See your John Deere Dealer as soon as possible

CODE EHo 172

Raise only solenoid circuit failure

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CODE EHo 181

Unlock solenoid circuit failure

See your John Deere Dealer as soon as possible

CODE EHo 182

Lock solenoid circuit failure

See your John Deere Dealer as soon as possible

CODE EHo 191

Differential lock solenoid circuit failure

See your John Deere Dealer as soon as possible

RX15494,00000CC -19-10SEP01-2/2