Egr Delta P Sensor - Detroit Diesel EPA07 Series 60 DDEC VI Troubleshooting Manual

[a] If the voltage is between 4.5 and 5.5 volts, repair the open circuit between pin 2 of the
EGR Delta P Sensor harness connector and pin 103 of the 120–pin MCM connector.
See Figure 39-1. Refer to section 39.2.1.1.
Figure 39-1

EGR Delta P Sensor

[b] If the voltage is less than 4.5 volts, repair the open circuit between pin 1 of the EGR
Delta P Sensor harness connector and pin 117 of the 120–pin MCM connector.
Refer to section 39.2.1.1.
7. Turn the ignition OFF.
8. Disconnect the 120–pin MCM connector.
9. Measure the resistance between pins 1 and 3 of the EGR Delta P Sensor harness connector.
[a] If the resistance is less than 5 Ω, repair the short in wires between pins 1 and 3 of
the EGR Delta P Sensor harness connector and pins 117 and 109 of the 120–pin
MCM connector. Refer to section 39.3.1.1.
[b] If the resistance is greater than 5 Ω, go to step 10.
10. Measure the resistance across pins 2 and 3 of the EGR Delta P Sensor harness connector.
[a] If the resistance is less than 5 Ω, repair the short in wires between pins 109 and 103
of the 120–pin MCM connector. Refer to section 39.3.1.1
[b] If the resistance is greater than 5 Ω, go to step 11.
11. Measure the resistance between pin 1of the EGR Delta P Sensor harness connector and
ground.
[a] If the resistance is less than 5 Ω, repair the short circuit between pin 117 of the
120–pin MCM connector and ground. Refer to section 39.3.1.1.
[b] If the resistance is greater than 5 Ω, go to step 12.
12. Measure the resistance between pin 3 of the EGR Delta P Sensor harness connector and
ground..
All information subject to change without notice.
Copyright © 2007 DETROIT DIESEL CORPORATION
SERIES 60 DDEC VI TROUBLESHOOTING GUIDE
39-5