Steering flash error codes – Great Plains 3PYPA Operator Manual User Manual

Page 103

Great Plains Manufacturing, Inc.

Troubleshooting

03/20/2012

401-647M

Steering Flash Error Codes

Code Diagnostic

Corrective Action

1 - 1 Float valve HS short to battery

1 - 1 Float valve LS short to battery

1 - 2 Float valve HS short to ground

1 - 2 Float valve LS short to ground

1 - 3 Float valve open circuit

2 - 1 ST1 valve HS short to battery

2 - 1 ST1 valve LS short to battery

2 - 2 ST1 valve HS short to ground

2 - 2 ST1 valve LS short to ground

2 - 3 ST1 valve open circuit

3 - 1 ST2 valve HS short to battery

3 - 1 ST2 valve LS short to battery

3 - 2 ST2 valve HS short to ground

3 - 2 ST2 valve LS short to ground

3 - 3 ST2 valve open circuit

5 - 1 Tractor sensor short to ground

5 - 2 Tractor sensor open circuit

ECU not detecting tractor sensor. Use same steps as for 5 - 1.

6 - 1 Caster sensor short to ground

Check caster wheel sensor, using same steps as for 5 - 1.

6 - 2 Caster sensor open circuit

ECU not detecting caster sensor. Use same steps as for 5 - 1.

8 - 1 ECU low voltage

29894

Check float valve coil and cable to ECU.
ECU is detecting an unexpected voltage in the circuit.

Check float valve coil and cable to ECU.
ECU is detecting a short to ground.

Check float valve coil and cable to ECU.
ECU is failing to detect presence of coil - no circuit continuity.

Check ST-1 valve coil and cable to ECU.
ECU is detecting an unexpected voltage in the circuit.

Check ST-1 valve coil and cable to ECU.
ECU is detecting a short to ground.

Check ST-1 valve coil and cable to ECU.
ECU is failing to detect presence of coil - no circuit continuity.

Check ST-2 valve coil and cable to ECU.
ECU is detecting an unexpected voltage in the circuit.

Check ST-2 valve coil and cable to ECU.
ECU is detecting a short to ground.

Check ST-2 valve coil and cable to ECU.
ECU is failing to detect presence of coil - no circuit continuity.

Check tractor wheel sensor for:
A. travel limits of sensor.
B. cable to ECU
C. function of sensor

Check tractor voltage above 10Vdc.
Check connections to ECU. Check harnesses and switchbox connections.