SID 146 07 0903-

09 03-18
1
09 03-18
SUBJECT
DATE
SID 146 07
September 2018
Additions, Revisions, or Updates
Publication Number / Title
DDC-SVC-MAN-0027
Platform
Section Title
Change
EPA04 MBE
900/4000
SID 146 07
Update EPA04 MBE 900/4000 diagnostic procedures.
DiagnosticLink users: Please update the troubleshooting guides in DiagnosticLink with this newest version. To update the
tool troubleshooting guide, open DiagnosticLink and from the Help – Troubleshooting Guides menu, select the appropriate
troubleshooting manual, then click Update.
All information subject to change without notice.
09 03-18
Copyright © 2018 DETROIT DIESEL CORPORATION
3
27.2
TROUBLESHOOTING SID 146
[a]
If fault code 146 02 is not active, erase fault code memory.
[b]
If fault code 146 02 is still active, go to step 4.
4. Bridge pin 3 of the EGR valve to ground and check for active fault codes. See Figure 27-5.
[a]
If fault code 146 02 is no longer active, repair open circuit in wire between pin 11 of
the 55-pin connector and pin 3 of the EGR valve and check for active fault codes. If
fault code 146 02 is no longer active, erase fault code memory.
[b]
If fault code 146 02 is still active, go to step 5.
5. Check the resistance between pin 50 of the 55-pin connector and pin 1 of the EGR
valve. See Figure 27-5.
[a]
If the resistance is greater than 3 Ω, repair the open circuit in the wire between pin
50 of the 55-pin connector and pin 1 of the EGR valve. If fault code 146 02 is no
longer active, erase fault code memory.
[b]
If the resistance is less than 3 Ω, contact Detroit Diesel Technical Service.
27.2.4
146 07 – EGR Valve not Responding
Perform the following steps to resolve an EGR valve not responding:
1. Check active codes.
[a]
If fault codes 146 07 and 146 02 are both active, refer to section 27.2.3.
[b]
If fault code 146 07 is the only code active, check for lost continuity between the
PLD-MR and the EGR valve (PV2). Refer to section 27.2.3.
2. Inspect the EGR cooler and piping for excessive soot build up. Is soot build up present?
[a]
Yes; clean/repair as needed.
[b]
No; Go to next step.
3. Replace the EGR valve. Is the fault code still active?
[a]
Yes; upload PLD-MR parameters to the server. Replace PLD-MR and program
using MBE Reprogramming.
[b]
No; erase fault code memory and release vehicle.
27.2.5
146 12 – Bad Component
Perform the following steps to resolve a Bad Component fault code.
1. Check active codes.
[a]
If fault code 146 12 is active, inspect the EGR valve flap. If freedom of movement is
restricted. remove soot and clean deposits as required.
[b]
If fault code 146 12 is still active, contact Detroit Diesel Technical Service for
instructions to perform a PV2 activation test to verify flap valve functionality.
2. Check for active fault codes
(Rev. 5/04)
27-10
All information subject to change without notice.
6SE422 0405 Copyright © 2004 DETROIT DIESEL CORPORATION