New Holland WorkMaster 50 Service Manual page 854

Tier 4b (final)

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4. Check the following pins listed below on the ECU A-9000 and in connector X-9102.

X-9102 pin K12

X-9102 pin K13

X-9102 pin K14

X-9102 pin K15

X-9102 pin K16

A. If a pin or connector shows signs of corrosion or damage, repair as necessary.

B. If a pin or connector shows no signs of corrosion or damage, continue to Step 5.

5. 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.

6. Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,

or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent

breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.

A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-

ered during the inspection or locate and repair the other than normal display condition and verify that the error

has been resolved.

B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue

Wiring harnesses - Electrical schematic sheet 02 – Engine Control Unit (ECU) power and after treatment

system (engine schematics) (55.100.DP-C.20.E.02)

Electrical systems - FAULT CODES

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55.12 [55.DTC] / 133

Physical condition