Valtra BH Series 140-210 Trouble Internal Roll inertial Sensor Fault

This instruction show you guide on how to solve Valtra BH Series 140-210 trouble code SA 28 – SPN 520224 FMI 02 internal roll inertial sensor is outside its normal operating range.

The guidance controller has detected the signal from the internal inertial sensor which measures vehicle roll is outside of its normal operating range.

The guidance controller uses inertial sensors to assist with guidance and improve accuracy on undulating terrain. The inertial sensors are inside of the guidance controller and are unserviceable in the event of failure.

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Failure Mode Indicator

FMI 02 – Erratic, intermittent, or incorrect

 

Diagnosis and Solution

1 STOP THE VEHICLE

1. Bring the vehicle to a complete stop on flat ground for 5 minutes to eliminate any movement detected by inertial sensor.

 

Expected Result:

Diagnostic fault code no longer exists.

 

Results:

• YES – The system reported a false diagnostic.

Repair: Report false diagnostic.

Proceed to step 3.

• NO – Diagnostic fault code exists.

Repair: Repower the guidance controller.

Proceed to step 2.

 

2 REPOWER THE GUIDANCE CONTROLLER

1. Disconnect power to the guidance controller via the appropriate switch for 30 seconds.
2. Reconnect power to the guidance controller.

 

Expected Result:

Diagnostic fault code no longer exists.

 

Results:

• YES – The system reported a false diagnostic.

Repair: Report false diagnostic.

Proceed to step 3.

• NO – The guidance controller has a hardware failure.

Repair: The guidance controller requires replacement per customer’s warranty/replacement plan

STOP.

 

3 REPORT FALSE DIAGNOSTIC

a Report the false diagnostic to AGCO Technical Support.

b Customer may resume operation of system.

c Ask customer to monitor system in case the error reappears.

STOP.