22.2
SPN 636/FMI 3
[a] If axial play is not within speci
fi
cations, repair or replace crankshaft thrust bearings,
as required. Refer to section 22.1.1.1.
[b] If axial play is within speci
fi
cations, replace the MCM. Refer to section 22.1.1.1.
22.1.1.1
Verify Repairs
Verify repairs as follows:
1. Turn the 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 636/1 is not logged, and other codes are logged, troubleshoot the logged codes.
[c] If code 636/1 and other codes are logged, review this section to
fi
nd the error. If no
error is found, call the Detroit Diesel Customer Support Center (313–592–5800).
22.2 SPN 636/FMI 3
The diagnostic condition is typically CKP Sensor has an open circuit.
22.2.1
Open Circuit Check
Check for a CKP Sensor open circuit as follows:
1. Disconnect the CKP Sensor.
2. Measure the resistance across pins 1 and 2 of the CKP Sensor. See Figure 22-2.
[a] If the resistance is greater than 140
Ω
, replace CKP Sensor. Refer to section 22.2.2.1.
[b] If the resistance is less than 140
Ω
, go to step 3.
3. Disconnect the 120–pin MCM connector.
4. Measure the resistance across pins 1 and 2 of the CKP Sensor harness connector.
[a] If the resistance is greater than 5
Ω
, go to step 5.
All information subject to change without notice.
22-4
PRELIMINARY 6SE567 0512
Copyright © 2005 DETROIT DIESEL CORPORATION
Summary of Contents for Series 60 DDEC VI
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Page 89: ...4 SPN 84 VEHICLE SPEED SENSOR Section Page 4 1 SPN 84 FMI 3 4 3 4 2 SPN 84 FMI 4 4 4 ...
Page 93: ...5 SPN 86 ADAPTIVE CRUISE CONTROL FAULT Section Page 5 1 SPN 86 FMI 14 5 3 ...
Page 201: ...21 SPN 625 CAN FAULT Section Page 21 1 SPN 625 FMI 2 9 10 13 14 21 3 21 2 SPN 625 FMI 4 21 5 ...