Detroit Diesel 60 Series Owner's Manual page 7

DDEC II Diagnostic Codes
Diagnostic Connector
Error
Code # Description
11 Power Take-off Sensor Lo Volt
12 Power Take-off Sensor Hi Volt
13 Coolant Sensor Lo Volt
14 Eng Temp Sensor Hi Volt
15 Eng Temp Sensor Lo Volt
16 Coolant Sensor Hi Volt
21 Throttle Pos Sensor Hi Volt
22 Throttle Pos Sensor Lo Volt
23 Fuel Temp Sensor Hi Volt
24 Fuel Temp Sensor Lo Volt
25
No Codes
26 Power Control Enabled
31 Fault on Auxiliary Output
32 ECM Backup System Fail
33
Turbo Bst Sensor Hi Volt
34 Turbo Bst Sensor Lo Volt
35 Oil Prs Sensor Hi Volt
36 Oil Prs Sensor Lo Volt
37 Fuel Prs Sensor Hi Volt
38 Fuel Prs Sensor Lo Volt
41 Timing Reference Sensor
CEL Examples
1 Flash
Short Pause
Code 13
NOTE: The CEL flashing gives both active and inactive (historic) codes.
CEL
3 Flashes
TO READ CODES: Use diagnostic data
reader or short pin A to pin M. The latter
method will flash codes at the CEL.
Error
Code # Description
42 Synchronous Ref Sensor
43
Low Coolant Level
44 Engine Over Temperature
45 Low Oil Pressure
46 Low Battery Voltage
47 Hi Fuel Pressure
48 Lo Fuel Pressure
51 EEPROM Error
52 ECM - A/D Fail
53 EEPROM Memory Failure
54 Vehicle Speed Sensor
55 Proprietary Comm. Link
56 ECM - A/D Fail
58 Cruise Ctl/Press Gov Ctl Switch
61-68 Inj Response Time Long
71-78 Inj Response Time Short
84
Crankcase Pressure Hi
85 Engine Overspeed
86 Press Gov Ctl - Hi Volt
87 Press Gov Ctl - Lo Volt
2 Flashes
Long Pause
5
CEL
1 Flash
Short Pause
Code 21