5.3 DDEC DESCRIPTIONS SAE  Faults Flash  Code DDEC Description s230 5 68 TPS idle validation switch open circuit s230 6 68 TPS idle validation switch short to  ground s231 12 55 J1939 data link fault s238 3 32 SEL short to battery (+) s238 4 32 SEL open circuit s239 3 32 CEL short to battery (+) s239 4 32 CEL open circuit s240 2 - Fram checksum incorrect s248 8 55 Proprietary data link fault (master) s248 9 55 Proprietary data link fault (slave) s249 12 57 J1922 data link fault s250 12 56 J1587 data link fault s253 2 53 Non volatile memory data incorrect s253 12 53 Non volatile memory fault s253 13 - Incompatible calibration version s254 0 - External failed RAM s254 1 - Internal failed RAM s254 6 - Entered boot via switches s254 12 52 ECM A/D conversion fail Table 5-2 SAE Faults and Flash Codes All information subject to change without notice. 5-14 6SE497  9709   Copyright © 1997 DETROIT DIESEL CORPORATION