Section 56.1
Description of Flash Code 56
Flash Code 56 indicates that the J1587 (diagnostic) data link is no longer allowing the ECM, see Figure "ECM" , to transmit data.
This diagnostic condition is typically:
- Either or both of the data link circuits are open at some point in the network.
- Either or both of the data link circuits are shorted to ground at some point in the network.
- Either or both of the data link circuits are shorted to battery (+) at some point in the network.
- The pair of data link circuits are shorted together.
| DDEC III/IV Single ECM Troubleshooting Guide - 6SE497 |
| Generated on 10-13-2008 |