New Holland WorkMaster 50 Service Manual page 851

With the key in the OFF position, use a multimeter to perform the following continuity checks on the engine
harness (EN) side :
From
X-9011 pin 1
X-9011 pin 1
X-9011 pin 1
X-9011 pin 1
With the key in the OFF position, use a multimeter to perform the following continuity checks on the vehicle
harness (VE) side :
From
X-9001 pin A08
A. If the specified values are measured, leave the ECU A-9000 connectors X-9102 and X-9001 disconnected.
Then, continue to Step 7.
B. If the specified values are not measured, there is a failure in the TVA Z-9001 voltage supply wiring. Use the
appropriate service manual, if necessary, to locate and repair the failed conductor.
7. Check the intake manifold pressure and temperature sensor B-9001 voltage supply wiring.
With the key in the ON position, use a multimeter to perform the following voltage check on the engine harness
(EN) side :
From
X-9003 pin 3
With the key in the OFF position, use a multimeter to perform the following continuity checks on the engine
harness (EN) side :
From
X-9003 pin 3
X-9003 pin 3
With the key in the OFF position, use a multimeter to perform the following continuity checks on the vehicle
harness (VE) side :
From
X-9001 pin A10
A. If the specified values are measured, leave the ECU A-9000 connectors X-9102 and X-9001 disconnected.
Then, continue to Step 8.
B. If the specified values are not measured, there is a failure in the intake manifold pressure and temperature
sensor B-9001 voltage supply wiring. Use the appropriate service manual, if necessary, to locate and repair
the failed conductor.
8. Check the rail pressure sensor B-9004 voltage supply wiring.
With the key in the ON position, use a multimeter to perform the following voltage check on the engine harness
(EN) side :
From
X-9026 pin 3
With the key in the OFF position, use a multimeter to perform the following continuity checks on the engine
harness (EN) side :
From
X-9026 pin 3
X-9026 pin 3
Electrical systems - FAULT CODES
To
Chassis ground
X-9011 pin 3
X-9011 pin 2
X-9011 pin 6
To
All pins in connector X-9001.
To
Chassis ground
To
Chassis ground
X-9003 pin 1
To
All pins in connector X-9001.
To
Chassis ground
To
Chassis ground
X-9026 pin 1
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55.12 [55.DTC] / 130
Value
There should be no continuity.
There should be no continuity.
There should be no continuity.
There should be no continuity.
Value
There should be no continuity.
Value
There should be no voltage.
Value
There should be no continuity.
There should be no continuity.
Value
There should be no continuity.
Value
There should be no voltage.
Value
There should be no continuity.
There should be no continuity.