Diesel Data
: Automotive Repair
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2001
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LS 430 V8-4.3L (3UZ-FE)
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A L L Diagnostic Trouble Codes ( DTC )
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DTC 4
DTC 4
CIRCUIT DESCRIPTION
This DTC is output when there is a failure in the mayday ECU. In this case, replace the mayday ECU.
INSPECTION PROCEDURE
Replace the mayday ECU.