DDEC TROUBLESHOOTING
10.14.6 Check lnput Status
Perform the following steps to troubleshoot Optimized Idle:
1. Check for input status.
2. Using the DDR, check the park brake input status with the hood closed, the transmission
in NEUTRAL (and high-range if equipped) and the park brake set.
[a] If the park brake status is ON, refer to section 10.14.9.
[b] If the park brake status is not ON, refer to section 10.14.7.
10.14.7 Check Hood Switch
Perform the following steps to troubleshoot the hood switch:
1. Check hood switch.
2. Measure the resistance across the hood switch contacts with the hood closed.
See Figure 10-11.
[a] If the resistance measures less than 100
, refer to section 10.14.8.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
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