Spn 636/Fmi 7; Camshaft And Crankshaft Signals Not Matching - Detroit Diesel Series 60 DDEC VI Troubleshooting Manual

[a] If the resistance is greater than 5 Ω, go to step 7.
[b] If the resistance is less than 5 Ω, repair the short to ground between pin 1 of the CKP
Sensor harness connector and pin 42 of the 120–pin MCM connector. Refer to section
22.3.1.1.
7. Measure the resistance between pin 2 of the CKP Sensor harness connector and pin 43
of the 120–pin MCM connector.
[a] If the resistance is greater than 5 Ω, reconnect the 120–pin MCM connector and
review steps 2 through 7. If the results are the same, call the Detroit Diesel Customer
Support Center (313–592–5800).
[b] If the resistance is less than 5 Ω, repair the short to ground between pin 2 of the CKP
Sensor harness connector and pin 43 of the 120–pin MCM connector. Refer to section
22.3.1.1.
22.3.1.1 Verify Repairs
Verify repairs as follows:
1. Turn vehicle ignition OFF. Reconnect all connectors.
2. Turn ignition ON. Clear codes with diagnostic tool
3. Start and run the engine for one minute. Stop engine.
4. Check diagnostic tool for codes.
[a] If no codes are displayed, troubleshooting is complete.
[b] If code 636/4 is not logged, and other codes are logged, troubleshoot the logged codes.
[c] If code 636/4 and other codes are logged, review this section to find the error. If no
error is found, call the Detroit Diesel Customer Support Center (313–592–5800).

22.4 SPN 636/FMI 7

This diagnostic condition is typically camshaft and crankshaft signals not matching.
22.4.1

Camshaft and Crankshaft Signals Not Matching

Check as follows:
1. Remove CKP and CMP sensors.
2. Reseat the CKP Sensor until it touches the flywheel and reseat the CMP Sensor until it
touches the cam gear. Check codes.
[a] If 636/7 is not active, refer to section 22.4.1.1.
[b] If 636/7 is active, go to step 3.
3. Remove CKP and CMP sensors.
4. Remove O-ring in CMP Sensor opening.
All information subject to change without notice.
PRELIMINARY 6SE567 0512 Copyright © 2005 DETROIT DIESEL CORPORATION
DDEC VI SERIES 60 TROUBLESHOOTING GUIDE
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