TROUBLESHOOTING FLASH CODE 66
Perform the following steps to check the connectors.
1. Check connectors at ECM and SNEF module.
[a] If the connectors are in good condition, replace the SNEF module.
Refer to section 66.3.9.
[b] If the connectors are damaged, repair and refer to section 66.3.9.
Check for Short to (+)
Perform the following steps to check for a short to positive (+).
1. Turn ignition OFF.
2. Disconnect the engine sensor harness. See Figure 66-1.
Series 50 Gas Engine Sensor Harness
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION