Powershift Control Unit Service Codes (PCU)

CODE PCU 5

Fuel flow signal from ECU missing (Warning)

Have your John Deere Dealer repair as soon as possible

CODE PCU 6

Transmission will not downshift when engine speed too high (Warning)

Use service brakes to help slow tractor

CODE PCU 8

Transmission not calibrated

Have your John Deere Dealer calibrate as soon as possible

CODE PCU 11

Wheel speed above 40 km/h (25 mph) and engine speed less than 2200 rpm (Warning)

Remain in gear going down hills; do not coast

CODE PCU 12

Shift above 14F attempted when oil temperature at or below 3°C (37°F)

Idle engine at approximately 1200 rpm with no load for several minutes, depending upon the temperature.

CODE PCU 13

Park brake pressure switch closed (Warning)

Have your John Deere Dealer repair as soon as possible

CODE PCU 14

Clutch is slipping for excessive time or load

Avoid riding clutch pedal

CODE PCU 15

Clutch engaged switch circuit open

Have your John Deere Dealer repair at earliest convenience

CODE PCU 16

Clutch engaged switch failed open

Have your John Deere Dealer repair at earliest convenience

CODE PCU 17

Operator not in seat with transmission in NEUTRAL

Engage PARK before leaving seat

CODE PCU 18

Clutch is slipping for excessive time or load and transmission downshifts

Avoid riding clutch pedal

CODE PCU 19

Park brake pressure switch failed open

Have your John Deere Dealer repair as soon as possible

CODE PCU 20

Seat switch failed closed

Have your John Deere Dealer repair as soon as possible

CODE PCU 21

Clutch engage switch failed closed

Have your John Deere Dealer repair at earliest convenience

AG,RX15494,2911 -19-10APR01-1/4

CODE PCU 22

Engine overload in 4R

Throttle up or reduce load

CODE PCU 24

Park brake not holding

See Check Park Brake System in General Maintenance and Inspection Section

Have your John Deere Dealer repair as soon as possible

If park brake OK, key switch may have been cycled while tractor was moving

Do not cycle key switch while tractor is moving

CODE PCU 25

Park brake not holding (Warning)

See Check Park Brake System in General Maintenance and Inspection Section

Have your John Deere Dealer repair as soon as possible

If park brake OK, key switch may have been cycled while tractor was moving

Do not cycle key switch while tractor is moving

CODE PCU 26

Shift lever moved to Park with tractor moving (Warning)

Do not engage PARK when moving faster then 4 km/h (2.5 mph)

CODE PCU 27

Transmission not calibrated

Have your John Deere Dealer calibrate as soon as possible

CODE PCU 28

Clutch is slipping for excessive time or load (STOP ENGINE)

Avoid riding clutch pedal

CODE PCU 29

Low park brake pressure with park brake released

Have your John Deere Dealer repair as soon as possible

CODE PCU 30

Both clutch switches on at same time (Warning)

Have your John Deere Dealer repair as soon as possible

CODE PCU 31

Clutch is slipping for excessive time or load (Warning)

Avoid riding clutch pedal

AG,RX15494,2911 -19-10APR01-2/4

CODE PCU 32 (1F, 5F, 6F, 13F)
33 (2F, 7F, 8F, 14F)
34 (3F, 9F, 10F, 15F)
35 (4F, 11F, 12F, 16F)
36 (1F, 2F, 3F, 4F, 5F, 7F, 9F, 11F, 1R, 2R)
37 (5F, 7F, 9F, 11F, 2R)
53 (6F, 8F, 10F, 12F, 3R)
54 (13F, 14F, 15F, 16F, 4R) and
55 (1R, 2R, 3R, 4R)

Open or short in clutch valve solenoid or wiring

Shift to NEUTRAL and then to a different forward or reverse gear. Have your John Deere Dealer repair as soon as possible

CODE PCU 38

Transmission controller failure

Have your John Deere Dealer repair as soon as possible

CODE PCU 39-45

Armrest control shifter or transmission relay circuit

Have your John Deere Dealer repair as soon as possible

CODE PCU 46

Armrest control shifter or transmission relay circuit

Have your John Deere Dealer repair as soon as possible

CODE PCU 48

Voltage to shift valves too low

Have your John Deere Dealer repair as soon as possible

CODE PCU 50

Tractor not moving with transmission in gear and engine not running

Always shift transmission to PARK or NEUTRAL before restarting

CODE PCU 51

Tractor not moving with transmission in gear and engine running

Shift to NEUTRAL and resume operation

Have your John Deere Dealer check ground speed sensor, wiring and valves and repair as soon as possible

CODE PCU 53 (6F, 8F, 10F, 12F, 3R)
54 (13F, 14F, 15F, 16F)
and 55 (1R, 2R, 3R,4R)

Open or short in clutch valve solenoid or wiring

Shift to NEUTRAL and then to a different forward or reverse gear

Have your John Deere Dealer repair as soon as possible

CODE PCU 56

Park valve solenoid or wiring open or shorted circuit

Have your John Deere Dealer repair as soon as possible

AG,RX15494,2911 -19-10APR01-3/4

CODE PCU 58

Tractor motion detected during transmission calibration

Check park brake, see Check Park Brake System in General Maintenance and Inspection Section

Have your John Deere Dealer repair as soon as possible

CODE PCU 60

Key switch ON with shift lever in gear

Put transmission in NEUTRAL or PARK before starting engine

CODE PCU 62

Attempted to shift from NEUTRAL to gear with operator out of seat

Return to seat, shift to NEUTRAL and resume normal operation

CODE PCU 63, 65

Transmission controller failure

Have your John Deere Dealer repair as soon as possible

CODE PCU 67

Transmission enable relay circuit failure

Have your John Deere Dealer repair as soon as possible

CODE PCU 69

Transmission not calibrated correctly

Have your John Deere Dealer repair as soon as possible

CODE PCU 70

No communication link between armrest control and transmission controller

Check fuse F3

Have your John Deere Dealer repair as soon as possible

CODE PCU 72-75

Transmission controller failure

Have your John Deere Dealer repair as soon as possible

CODE PCU 76

PTO not working correctly - requires calibration

Have your John Deere Dealer repair as soon as possible

AG,RX15494,2911 -19-10APR01-4/4