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COMMUNICATION PROTOCOLS
DM2 – Previously Active Diagnostic Trouble Codes
Transmission Rate:
On Request
Data Length:
Variable
Data Page:
0
PDU Format:
254
PDU Speci
fi
c:
203
Default Priority:
6
PGN:
65227 (0x00FECB)
Byte: 1
Bits: 8–7
Malfunction Indicator Lamp Status (SPN 1213)
00: Lamp Off
01: Lamp On
10: Error
11: Not Available
Bits: 6–5
Red Stop Lamp Status (SPN 623)
00: Lamp Off
01: Lamp On
10: Error
11: Not Available
Bits: 4–3
Amber Warning Lamp Status (SPN 624)
00: Lamp Off
01: Lamp On
10: Error
11: Not Available
Bits: 2–1
Protect Lamp Status (SPN 987) – N/A
Byte: 2
Bits: 8–1
Reserved for SAE Assignment Lamp Status
Byte: 3
Bits: 8–1
SPN, 8 least signi
fi
cant bits of SPN (most signi
fi
cant at bit
8) (SPN 1214)
Byte: 4
Bits: 8–1
SPN, second byte of SPN (most signi
fi
cant at bit 8) (SPN
1214)
Byte: 5
Bits: 8–6
SPN, 3 most signi
fi
cant bits (most signi
fi
cant at bit 8) (SPN
1214)
Bits: 5–1
FMI (most signi
fi
cant at bit 5) (SPN 1215)
Byte: 6
Bit: 8
SPN conversion Method (SPN 1706)
Bits: 7–1
Occurrence count (SPN 1216)
Byte: 7
Bits: 8–1
Not De
fi
ned
Byte: 8
Bits: 8–1
Not De
fi
ned
6-40
All information subject to change without notice.
(Rev. 01/07)
7SA827 0701
Copyright © 2007 DETROIT DIESEL CORPORATION