Detroit Diesel EPA07 Series 60 DDEC VI Troubleshooting Manual page 842

117.1 SPN 3659/FMI 14
[b] If the resistance is less than 3 Ω, repair the short to power between battery positive
and pin 11 of the MCM 120–pin connector. See Figure 117-1.
Figure 117-1 120–pin MCM Connector
10. Turn the ignition OFF.
11. Disconnect the Front Injector Harness 12–pin connector.
12. Measure the resistance between pin 10 and pin 1 on the valve cover side of the injector
harness. If using J-48671–10, measure between injector #1 pins 3 and 4.
[a] If the resistance is greater than 3 Ω, 13.
[b] If the resistance is less than 3 Ω, go to step 18.
13. Remove the upper valve cover.
14. Disconnect injector #1.
15. Measure the resistance between pin 9 on the valve cover side of the Front Injector Harness
and pin 3 of the injector #1 harness connector. If usingJ-48671–10, measure between
injector #1 pin 3 and the injector #1 harness connector pin 3.
[a] If the resistance is greater than 3 Ω, replace the under valve cover injector harness.
Refer to section 117.1.1.1.
[b] If the resistance is less than 3 Ω, go to step 16.
16. Measure the resistance between pin 2 on the valve cover side of the Front Injector Harness
and pin 4 of the injector #1 harness connector. If using J-48671–10, measure between
injector #1 pin 4 and the injector #1 harness connector pin 4.
117-4
All information subject to change without notice.
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