DDEC III/IV Single ECM Troubleshooting

Section 45.3 Troubleshooting Flash Code 45

Section 45.3
Troubleshooting Flash Code 45

Perform the following steps to troubleshoot Flash Code 45.‪

Section 45.3.1
Multiple Code Check

Perform the following steps to check for multiple codes.‪

  1. Turn vehicle ignition switch ON.
  2. Plug in the diagnostic data reader (DDR)
  3. Read active codes.
    1. If codes other than 100/1 are logged, service them first.
    2. If code 100/1 is logged, and no other codes are logged, there was an engine running condition at which oil pressure was lower than it should have been.
    3. Note: For information concerning low oil pressure level, refer to section 3.1 in the engine service manual.


DDEC III/IV Single ECM Troubleshooting Guide - 6SE497
Generated on 10-13-2008

One Reply to “Section 45.3 Troubleshooting Flash Code 45”

  1. SERIES 60 1991 OIL PRESSURE GOOD AT START AND REST WHEN HOT . WHEN UNDER LOAD PULLING HARD 1800RPM OIL PRESSURE WILL DIP DOWN TO UNDER 20PSI SOON AS I BUTTON OFF PRESSURE RETURNS TO NORMAL . RELIEF VALVE AND REGULATOR VALVE SEEM OK OIL PUMP STRIPED ALL GOOD. OIL LEVEL GOOD . ANY SUGGESTIONS . STEVE

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