Sonic Troubleshooting Guide

Creator: FAE USA Product Department

fae-usa.com
SONIC
Components layout & sys flow
Electric control of
hydraulic motor

Pressure
sensor

Electro-
proportional

Speed
Sensor

Control unit

Layout Position

Input

Output

Power supply

1. Start the machine’s engine

2. Push the Setting A button until the light turns ON (see below photo)
3. Engage and allow the Hydraulic Flow to the Head of the Skid Steer Loaders
4. During Calibration the following will occur (this process will take a max of 3 minutes):

Calibration Step-1 Rotor will not turn

Calibration Step-2 Rotor will calibrate @Min Speed
Calibration Step-3 Rotor will calibrate @Max Speed
When Calibration is successfully completed Light on the button will turns OFF

In case the calibration is unsuccesful the light on the button will start blinking (if this happens, repeat all calibration
procedure).

B MULTIPURPOSE PLUG
• Power Source
B • Laptop Connection
A

A Auto Calibration Procedure

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UML SSL SONIC TROUBLESHOOTING MANUAL

- Calibration Button Faults -

This procedure covers the following error codes:

CALIBRATION BUTTON ERROR CODES

Code Code Description Comments

Table 1: Calibration Button error codes

The following information are related to the calibration button:

On UML SSL Sonic there is a button that is used to calibrate the mulcher. In order to do that, press the
button for 3/4 seconds and the led present will switch on. This means that the calibration is running.
When the led will switch off means that the calibration is finished.
The calibration button is positioned in the left side of the mulcher as shown in Figure 1.

Calibration
Button

Figure 1: Calibration Button position

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The connector used for calibration button is a 4 way female Deutsch with the following cables position:

Figure 2: Calibration Button pins position:

1 +12V , 2 Calibration Lamp, 3 Ground, 4 Calibration Signal

The electrical schematic of calibration button is represented by Figure 3. The power supply of the button
comes from the skidsteer. The calibration signal enters in the ECU and is the latter that control the cali-
bration lamp present on the button depending on the status of the calibration.

Figure 3: Calibration Button Electrical Schematic

Troubleshooting Steps Resuts

1. Verify Connection of Calibration Button Result 1: The connector is not well connected to the button.
Connector Repair 1: Insert the connector in the button and verify its
operation.
Check the connection of calibration button con-
nector. Result 2: The connector is well connected to the button.
Repair 2: Proceed to step 2.
2. Verify Wires inside Calibration Button Result 1: One or more wires are damaged.
Connector Repair 1: Repair the wire/s in question and test calibration
button operation.
Check that all the wires inside calibration button
connector are not damaged. Result 2: The wires are not damaged.
Repair 2: Proceed to step 3.
3. Verify Power Supply of Calibration But- Result 1: There is not +12V.
ton Connector Repair 1: Follow “Power Supply Check ” procedure.

Check to have +12V between Pin 1(+) and Pin 3(-) of Result 2: There is +12V.
calibration button connector. Repair 2: Proceed with troubleshooting step 4.
Table 2: Troubleshooting steps

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Power Supply Check procedure

1. Check to have +12V between Pin 1 (+) and Pin 2 (-) of X2/C3 connector (Figure 4).
If there is not +12V proceed with next point. On the contrary, if there is +12V, the problem is inside X1
mulcher harness 400000217.

2. Check to have +12V between Pin 1(+) and Pin 2(-) of X3/C2 connector (Figure 5).
If there is +12V the problem is inside X2 harness 400000219. On the contrary, if there is not +12V,
check the skidsteer side wirings and to be sure that all FAE harness are correct proceed with the
next points checking continuity of power supply wires.

3. Check to have continuity between Pin 1 of calibration button connector and Pin 1 of X1/C1 connec-
tor (Figure 4).
If there is not continuity the problem is inside X1 harness 400000217. On the contrary, if there is
continuity proceed with the next point.

4. Check to have continuity between Pin 1 of X2/C3 connector (Figure 4) and Pin 1 of X2/C1 connector
(Figure 5).
If there is not continuity the problem is inside X2 harness 400000218. On the contrary, if there is
continuity proceed with the next point.

5. Check to have continuity between Pin 1 of X3/C2 connector (Figure 5) and Pin K of X3/C1 connector
(Figure 5).
If there is not continuity the problem is inside X3 harness 400000219. On the contrary, if there is
continuity proceed with the next point.

6. Check to have continuity between Pin 3 of calibration button connector and Pin 2 of X1/C1 connec-
tor (Figure 4).
If there is not continuity the problem is inside X1 harness 400000217. On the contrary, if there is
continuity proceed with the next point.

7. Check to have continuity between Pin 2 of X2/C3 connector (Figure 4) and Pin 2 of X2/C1 connector
(Figure 5).
If there is not continuity the problem is inside X2 harness 400000218. On the contrary, if there is
continuity proceed with the next point.

8. Check to have continuity between Pin 2 of X3/C2 connector () and Pin B of X3/C1 connector ().
If there is not continuity the problem is inside X3 harness 400000219. On the contrary, if there is
continuity, check the skidsteer side wirings because all the FAE harness are correct.

X2/C3
X1/C1

X2/C4

X1/C2

Figure 4: X1/C1 - X1/C2 - X2/C3 - X2/C4 connector positions

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X2/C1
X3/C2

X1/C9

X3/C3 X2/C2
X3/C1

X1/C8

Figure 5: X3/C1 - X3/C2 - X3/C3 - X2/C1 - X2/C2 connector positions

Figure 6: ECU connectors

Troubleshooting Steps Resuts

4. Check Calibration Signal from button Result 1: There is not continuity.

connector to ECU Repair 1: There is a problem inside X1 harness 400000217.

Check to have continuity between Pin 2 of cali- Result 2: There is continuity.

bration button connector and Pin 6 of X1/C9 ECU Repair 2: Proceed to step 5.
black connector (Figure 6).
5. Check Calibration Lamp Signal from Result 1: There is not continuity.
ECU to button connector Repair 1: There is a problem inside X1 harness 400000217.

Check to have continuity between Pin 4 of calibra- Result 2: There is continuity.

tion button connector and Pin 6 of X1/C8 ECU grey Repair 2: Proceed to step 6.
connector (Figure 6).
6. Check button operation Result 1: There is continuity.
Repair 1: The problem is the ECU.
Press the button and check to have continuity
between Pin 1 and Pin 4 of the button. Result 2: There is not continuity.
Repair 2: The problem is the button, code 400000175.

Table 3: Troubleshooting steps

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UML SSL SONIC TROUBLESHOOTING MANUAL

- Diverter EHV Faults -

This procedure covers the following error codes:

DIVERTER EHVs ERROR CODES

Code Code Description Comments

Table 1: Diverter EHVs error codes

The following information are related to these EHVs:

On UML SSL Sonic there are 2 diverter EHVs, one used to open the hood and the latter to close it. They
are positioned in the mulcher near the pressure gauge as shown in Figure 1.

Diverter
EHV #1
X1/C4

Diverter
EHV #2
X1/C5

Figure 1: Diverters position

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The connector used for diverter EHV #1 and #2 is a 2 way female Deutsch with led, with the following
cables position:

Figure 2: Diverter EHVs pins position:

1 Diverter EHV Control , 2 Diverter EHV Ground

The electrical schematics of diverter EHVs is represented by Figure 3. The control and ground signals of
diverter EHVs start from the skidsteer. The control signal enters in the ECU and then it is the latter that
commands the EHV. While the ground signal goes directly to the diverters.

Figure 3: Diverter EHVs Electrical Schematic

If there is a problem on Diverter EHV #1, that is the one that OPEN? the hood, follow troubleshooting
procedure 1. While if there is a problem on Diverter EHV #2, that is the one that CLOSE? the hood, follow
troubleshooting procedure 2.

Troubleshooting Procedure 1

Troubleshooting Steps Resuts

1. Verify Connection of Diverter EHV #1 Result 1: The connector is not well connected to the EHV.
Connector (X1/C4) Repair 1: Insert the connector in the EHV and verify its ope-
ration.
Check the connection of diverter EHV #1 connec-
tor X1/C4 (Figure 1) to the EHV. Result 2: The connector is well connected to the EHV.
Repair 2: Proceed to step 2.
2. Verify Wires inside Diverter EHV #1 Result 1: One or more wires are damaged.
Connector (X1/C4) Repair 1: Repair the wire/s in question and test diverter EHV
#1 operation.
Check that all the wires inside diverter EHV #1
connector X1/C4 (Figure 1) are not damaged. Result 2: The wires are not damaged.
Repair 2: Proceed to step 3.
3. Verify Power Supply of Diverter EHV #1 Result 1: There is not +12V.
Repair 1: Follow “Power Supply Check 1” procedure.
Command diverter EHV #1 and check to have +12V
between Pin 1(+) and Pin 2(-) of diverter #1 con- Result 2: There is +12V.
nector X1/C4 (Figure 1). Repair 2: The problem is the diverter.
Table 2: Troubleshooting steps

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Power Supply Check 1 procedure

1. Check to have continuity between Pin 1 of X1/C4 connector (Figure 1) and Pin 4 of X1/C9 connector
(Figure 5).
If there is not continuity, there is a problem in X1 harness 400000217. On the contrary, if there is
continuity, proceed with next point.

2. Check to have continuity between Pin 2 of X1/C4 connector (Figure 1) and Pin 2 of X1/C2 connector
(Figure 4).
If there is not continuity, there is a problem in X1 harness 400000217. On the contrary, if there is
continuity, proceed with next point.

3. Check to have continuity between Pin 5 of X1/C8 connector (Figure 5) and Pin 1 of X1/C2 connector
(Figure 4).
If there is not continuity, there is a problem in X1 harness 400000217. On the contrary, if there is
continuity, proceed with next point.

4. During the command of diverter EHV #1, check to have +12V/+24V between Pin 1(+) and Pin 2(-) of
X2/C4 connector (the one connected to X1/C2).
If there is not +12V/+24V proceed with next step. On the contrary, if there is +12V/+24V, means that
the EHV command arrive to ECU and hence is the ECU that does not command the diverter.

5. During the command of diverter EHV #1, check to have +12V/+24V between Pin 1(+) and Pin 2(-) of
X3/C3 connector (Figure 6).
If there is not +12V/+24V proceed with next step.

6. Check to have continuity between Pin 2 of X3/C3 connector (Figure 6) and Pin B of X3/C1 connector
(Figure 6).
If there is not continuity, there is a problem in X3 harness 400000219. On the contrary, if there is
continuity, proceed with next point.

7. Check to have continuity between Pin 1 of X3/C3 connector (Figure 6) and Pin C of X3/C1 connector
(Figure 6).
If there is not continuity, there is a problem in X3 harness 400000219. On the contrary, if there is
continuity, all the harness are correct. Check the wire at skiidsteer side.

X2/C3
X1/C1

X1/C9

X2/C4

X1/C2
X1/C8

Figure 4: X1/C1 - X1/C2 - X2/C3 - X2/C4 connector positions Figure 5: ECU connectors

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X2/C1
X3/C2

X3/C3 X2/C2
X3/C1

Figure 6: X3/C1 - X3/C2 - X3/C3 - X2/C1 - X2/C2 connector positions

Troubleshooting Procedure 2

Troubleshooting Steps Resuts

1. Verify Connection of Diverter EHV #2 Result 1: The connector is not well connected to the EHV.
Connector (X1/C5) Repair 1: Insert the connector in the EHV and verify its ope-
ration.
Check the connection of diverter EHV #1 connec-
tor X1/C5 (Figure 1) to the EHV. Result 2: The connector is well connected to the EHV.
Repair 2: Proceed to step 2.
2. Verify Wires inside Diverter EHV #2 Result 1: One or more wires are damaged.
Connector (X1/C5) Repair 1: Repair the wire/s in question and test diverter EHV
#2 operation.
Check that all the wires inside diverter EHV #2
connector X1/C5 (Figure 1) are not damaged. Result 2: The wires are not damaged.
Repair 2: Proceed to step 3.
3. Verify Power Supply of Diverter EHV #2 Result 1: There is not +12V.
Repair 1: Follow “Power Supply Check 2” procedure.
Command diverter EHV #2 and check to have
+12V between Pin 1(+) and Pin 2(-) of diverter #2 Result 2: There is +12V.
connector X1/C5 (Figure 1). Repair 2: The problem is the diverter.
Table 3: Troubleshooting steps
Power Supply Check 2 procedure
1. Check to have continuity between Pin 1 of X1/C5 connector (Figure 1) and Pin 5 of X1/C9 connector
(Figure 5).
If there is not continuity, there is a problem in X1 harness 400000217. On the contrary, if there is
continuity, proceed with next point.

2. Check to have continuity between Pin 2 of X1/C5 connector (Figure 1) and Pin 4 of X1/C2 connector
(Figure 4).
If there is not continuity, there is a problem in X1 harness 400000217. On the contrary, if there is
continuity, proceed with next point.

3. Check to have continuity between Pin 7 of X1/C8 connector (Figure 5) and Pin 3 of X1/C2 connector
(Figure 4).
If there is not continuity, there is a problem in X1 harness 400000217. On the contrary, if there is
continuity, proceed with next point.

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4. During the command of diverter EHV #2, check to have +12V/+24V between Pin 3(+) and Pin 4(-) of
X2/C4 connector (the one connected to X1/C2).
If there is not +12V/+24V proceed with next step. On the contrary, if there is +12V/+24V, means that
the EHV command arrives to ECU and hence is the ECU that does not command the diverter.

5. During the command of diverter EHV #2, check to have +12V/+24V between Pin 3(+) and Pin 4(-) of
X3/C3 connector (Figure 6).
If there is not +12V/+24V proceed with next step.

6. Check to have continuity between Pin 4 of X3/C3 connector (Figure 6) and Pin B of X3/C1 connector
(Figure 6).
If there is not continuity, there is a problem in X3 harness 400000219. On the contrary, if there is
continuity, proceed with next point.

7. Check to have continuity between Pin 3 of X3/C3 connector (Figure 6) and Pin D of X3/C1 connector
(Figure 6).
If there is not continuity, there is a problem in X3 harness 400000219. On the contrary, if there is
continuity, all the harness are correct. Check the wire at skiidsteer side.

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UML SSL SONIC TROUBLESHOOTING MANUAL

- Main Power Supply -

It is possible to check if the main power supply is present or not controlling the led status on the ECU
(Figure 1). If it is green means that the ECU is on, while if it is off means that also the ECU is off.

Figure 1: ECU Led Status

If the ECU is off but it shouldn’t be, follow the following troubleshooting procedure to find the problem.

Troubleshooting Steps Resuts

1. Verify Power Supply coming from the Result 1: There is +12V.

skidsteer Repair 1: There is a problem inside X1 mulcher wiring
400000217. Follow “X1 Check“ procedure to find it.
Check to have +12V between Pin 1(+) and Pin 2(-) of
X2/C3 connector. Result 2: There is not +12V.
Repair 2: Proceed to step 2.
2. Verify Power Supply in X3 harness Result 1: There is +12V.
Repair 1: There is a problem in X2 harness 400000218. Follow
Check to have +12V between Pin 1(+) and Pin 2 (-) “X2 Check” procedure to find it.
of X3/C2 connector(Figure 2).
Result 2: There is not +12V.
Repair 2: Follow “X3 Check” procedure and if X3 harness
result ok the problem should be at skidsteer side because all
FAE harness turned out to be without problem

Table 1: Troubleshooting steps

X1 Check procedure
1. Check to have continuity between Pin 2 of X1/C8 ECU grey connector (Figure 3) and Pin 1 of X1/C1
connector (Figure 2).

2. Check to have continuity between Pin 11 of X1/C9 ECU black connector (Figure 3) and Pin 1 of X1/C1
connector (Figure 2).

3. Check to have continuity between Pin 12 of X1/C9 ECU black connector (Figure 3) and Pin 1 of X1/C1
connector (Figure 2).

4. Check to have continuity between Pin 1 of X1/C8 ECU grey connector (Figure 3) and Pin 2 of X1/C1
connector (Figure 2).

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X2/C3
X1/C1

X1/C9

X2/C4

X1/C2
X1/C8

Figure 2: X1/C1 - X1/C2 - X2/C3 - X2/C4 connector positions

Figure 3: ECU connectors

X2 Check procedure
1. Check to have continuity between Pin 1 of X2/C3 connector (Figure 2) and Pin 1 of X2/C1 connector
(Figure 4).

2. Check to have continuity between Pin 2 of X2/C3 connector (Figure 2) and Pin 2 of X2/C1 connector
(Figure 4).

X2/C1
X3/C2

X3/C3 X2/C2
X3/C1

Figure 4: X3/C1 - X3/C2 - X3/C3 - X2/C1 - X2/C2 connector positions

X3 Check procedure
1. Check to have continuity between Pin 1 of X3/C2 connector (Figure 4) and Pin K of X3/C1 connector
(Figure 4).

2. Check to have continuity between Pin 2 of X3/C2 connector (Figure 4) and Pin B of X3/C1 connector
(Figure 4).

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UML SSL SONIC TROUBLESHOOTING MANUAL

- Motor Control Faults -

This procedure covers the following error codes:

MOTOR CONTROL ERROR CODES

Code Code Description Comments

Table 1: Motor Control error codes

The following information are related to this specific sensor:

Mulcher motor control is a system used on Sonic mulcher in order to adapt the engine displacement
according to the load. It is positioned under the mulcher motor as shown in Figure 1.

Figure 1: Motor control position (red arrow)

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The connector is a 2 way female Deutsch with the following cables position:

Figure 2: Motor Control pins position:

1 Motor EDC Power Ground , 2 Motor EDC Control

The electrical schematics of mulcher motor control is represented by Figure 3. The ground signal comes
from the Skidsteer through the wiring attached to the mulcher, while the control signal comes from the
ECU.

Figure 3: Motor Control Electrical Schematic

Troubleshooting Steps Resuts

1. Verify Connection of Motor Control Result 1: The connector is not well connected to the EDC.
Connector Repair 1: Insert the connector in the EDC and verify its ope-
ration.
Check the connection of mulcher motor control
connetor to the EDC. Result 2: The connector is well connected to the EDC.
Repair 2: Proceed to step 2.
2. Verify Wires inside Motor Control Result 1: One or more wires are damaged.
Connector Repair 1: Repair the wire/s in question and test mulcher
motor control operation.
Check that all the wires inside mulcher motor
control connector are not damaged. Result 2: The wires are not damaged.
Repair 2: Proceed to step 3.
3. Verify Control wire of Motor Control Result 1: There is not continuity.
Connector Repair 1: There is a problem inside mulcher harness
400000217.
Check to have continuity between Pin 2 of mul-
cher motor control connector and Pin 9 of ECU Result 2: There is continuity.
connector (Figure 5). Repair 2: Proceed to step 4.
4. Verify Ground wire of Motor Control Result 1: There is not continuity.
Connector Repair 1: There is a problem inside mulcher harness
400000217.
Check to have continuity between Pin 1 of mul-
cher motor control connector and Pin 2 of X1/C3 Result 2: There is continuity.
connector (Figure 4). Repair 2: Proceed to step 5.
Table 2: Troubleshooting steps
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Troubleshooting Steps Resuts

5. Verify Ground signal inside X2 harness Result 1: There is not continuity.

400000218 Repair 1: The problem is inside X2 harness 400000218.

Check to have continuity between Pin 2 of X2/C1 Result 2: There is continuity.

connector (Figure 6) and Pin 2 of X2/C3 connector Repair 2: Proceed to step 6.
(Figure 4).
6. Verify Ground signal inside X3 harness Result 1: There is not continuity.
400000219 Repair 1: The problem is inside X3 harness 400000219.

Check to have continuity between Pin 2 of X3/C2 Result 2: There is continuity.

connector (Figure 6) and Pin B of X3/C1 connector Repair 2: Check the skidsteer ground output because all
(Figure 6). the harness are ok and if it is good the problem could be the
ECU.
Table 3: Troubleshooting steps

X2/C3
X1/C1

X2/C4

X1/C2

Figure 4: X1/C1 - X1/C2 - X2/C3 - X2/C4 connector positions Figure 5: ECU gray connector X1/C8

X2/C1
X3/C2

X3/C3 X2/C2
X3/C1

Figure 6: X3/C1 - X3/C2 - X3/C3 - X2/C1 - X2/C2 connector positions

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UML SSL SONIC TROUBLESHOOTING MANUAL

- Pressure Transducer Faults -

This procedure covers the following error codes:

PRESSURE TRANSDUCER ERROR CODES

Code Code Description Comments

Table 1: Pressure transducer error codes

The following information are related to this specific sensor:

Pressure transducer is used for measure the pressure of the mulcher circuit. It is positioned on the left
part of the mulcher motor as shown in Figure 1.

Figure 1: Pressure transducer position (red arrow)

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The connector is a 4 way female Deutsch with the following cables position:

Figure 2: Pressure transducer pin position (in black the pin used):
1 -5V , 2 +5V , 4 Mulcher Pressure Signal

The electrical schematics of mulcher presssure is represented by Figure 3. The transducer is powered by
a voltage of +5V coming from master ECU and also the signal that indicates the pressure value is con-
nected to master ECU.

Figure 3: In Yellow Mulcher Pressure Electrical Schematic

Troubleshooting Steps Resuts

1. Verify Connection of Mulcher Pressure Result 1: The connector is not well connected to the tran-
Connector sducer.
Repair 1: Insert the connector in the transducer and verify its
Check the connection of mulcher pressure conne- operation.
tor to the transducer.
Result 2: The connector is well connected to the transducer.
Repair 2: Proceed to step 2.
2. Verify Wires inside Mulcher Pressure Result 1: One or more wires are damaged.
Connector Repair 1: Repair the wire/s in question and test mulcher
pressure operation.
Check that all the wires inside mulcher pressure
connector are not damaged. Result 2: The wires are not damaged.
Repair 2: Proceed to step 3.
Table 2: Troubleshooting steps

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Troubleshooting Steps Resuts

3. Verify Power Supply of Mulcher Pressu- Result 1: There is not +5V.

re Connector Repair 1: Follow “Power Supply Check” procedure.

Check to have +5V between Pin 1(-) and Pin 2(+) of Result 2: There is +5V.
mulcher pressure connector. Repair 2: Proceed to step 4.
Table 3: Troubleshooting steps
Power Supply Check procedure
1. Check to have continuity between Pin 2 of mulcher pressure connector and Pin 8 of X1/C8 connec-
tor (gray connector attached to ECU in Figure 4).
If there is not continuity there is a problem on the mulcher harness 400000217. On the contrary, if
there is continuity, proceed with next point.

2. Check to have continuity between Pin 1 of mulcher pressure connector and Pin 9 of X1/C8 connec-
tor (gray connector attached to ECU in Figure 4).
If there is not continuity there is a problem on the mulcher harness 400000217. On the contrary, if
there is continuity, the problem is the ECU. In the latter case there should be a problem also on the
mulcher motor speed sensor.

Figure 4: ECU gray connector X1/C8 (red arrow)

Troubleshooting Steps Resuts

3. Verify Mulcher Pressure Signal Result 1: There is not continuity.

Repair 1: There is a problem in X1 harness 400000217.
Check to have continuity between Pin 4 of mul-
cher pressure connector and Pin 12 of X1/C8 Result 2: There is continuity.
connector (gray connector attached to ECU in Repair 2: There is a problem on the ECU.
Figure 4).
Table 4: Troubleshooting steps

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UML SSL SONIC TROUBLESHOOTING MANUAL

- Speed Sensor Faults -

This procedure covers the following error codes:

SPEED SENSOR ERROR CODES

Code Code Description Comments

Table 1: Speed Sensor error codes

The following information are related to this specific sensor:

Speed sensor is used to measure the speed of the mulcher motor. It is positioned on the mulcher motor
as shown in Figure 1.

Figure 1: Speed Sensor position (red arrow)

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The connector is a 6 way female Deutsch (DTM06-6S) with the following cables position:

Figure 2: Speed Sensor pins position (in black the pin used):
3 Speed Signal , 4 +5V , 5 -5V, 6 Oil Temperature

The electrical schematics of speed sensor is represented by Figure 3. The speed sensor il powered by
ECU and also the speed and temperature signals go into ECU.

Figure 3: In Yellow Mulcher Speed Sensor Electrical Schematic

Troubleshooting Steps Resuts

1. Verify Connection of Speed Sensor Result 1: The connector is not well connected to the sensor.
Connector Repair 1: Insert the connector in the sensor and verify its
operation.
Check the connection of speed sensor connector
to the sensor. Result 2: The connector is well connected to the sensor.
Repair 2: Proceed to step 2.
2. Verify Wires inside Speed Sensor Result 1: One or more wires are damaged.
Connector Repair 1: Repair the wire/s in question and test speed sensor
operation.
Check that all the wires inside speed sensor con-
nector are not damaged. Result 2: The wires are not damaged.
Repair 2: Proceed to step 3.
Table 2: Troubleshooting steps

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Troubleshooting Steps Resuts

3. Verify Power Supply of Speed Sensor Result 1: There is not +5V.

Connector Repair 1: Check right connection of X1/C8 connector (Figure
4) to the ECU. If the connector is correctly inserted the pro-
Check to have +5V between Pin 4(+) and Pin 5(-) of blem could be the ECU.
speed sensor connector.
Result 2: There is +5V.
Repair 2: Proceed to step 4 if you have a problem on speed
signal and to step 5 if you have a problem on oil temperature
signal.
4. Verify Speed Signal of Speed Sensor Result 1: There is not continuity.
Connector Repair 1: There is a problem in X1 harness 400000217.

Check to have continuity between Pin 3 of speed Result 2: There is continuity.

sensor connector and Pin 11 of X1/C8 ECU grey Repair 2: The problem could be the ECU or the sensor.
connector(Figure 4).
5. Verify Temperature Signal of Speed Result 1: There is not continuity.
Sensor Connector Repair 1: There is a problem in X1 harness 400000217.

Check to have continuity between Pin 6 of speed Result 2: There is continuity.

sensor connector and Pin 1 of X1/C9 ECU black Repair 2: The problem could be the ECU or the sensor.
connector(Figure 4).
Table 3: Troubleshooting steps

X1/C9 black
connector

X1/C8 grey
connector

Figure 4: ECU connectors