New Holland WorkMaster 50 Service Manual page 857

Tier 4b (final)
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DTC 1EB-03-ECU internal failure - Ambient pressure sensor voltage
is higher than expected
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors atmospheric pressure. The ECU A-9000 performs a signal range
check of the atmospheric pressure sensor value. If the ECU A-9000 determines that the value is too high, this fault
will occur. The atmospheric pressure sensor is internal to the ECU A-9000.
Solution:
1. Check the ECU A-9000 for the appropriate software and re-flash, if necessary.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, escalate an ASIST concern.
Electrical systems - FAULT CODES
47866583_ 02/12/2015
55.12 [55.DTC] / 136

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