Help! OBD trouble code - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 03-02-2011, 01:54 PM Thread Starter
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Help! OBD trouble code

I am showing a code p2509 (powerdown data lost error). Does anyone know whats this means? Never seen this before. Any info will help. Thanks for looking

Red 2004.5 4X4 4DR Lng Bed, Edge EZ Chip, 4" MBRP Exhaust, No DPF, K&N Filter, GlowShift Gauges, 2" Leveling Kit, Bilstien 5100's, Amsoil Bypass/w 15W-40 and still upgrading.
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post #2 of 5 (permalink) Old 03-02-2011, 06:23 PM
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Check your batteries first, they may be going bad, check your main grounding bolt and if you added any new electronics you might have a bad ground

2007 Dodge 3500 MegaCab Laramie CTD 4x4 Patroit Blue Just a bunch of Go fast parts and programing
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post #3 of 5 (permalink) Old 03-02-2011, 07:39 PM Thread Starter
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I just put two new batteries on the truck about a week ago. Interstate batterys 800 cold cranking amps.

Red 2004.5 4X4 4DR Lng Bed, Edge EZ Chip, 4" MBRP Exhaust, No DPF, K&N Filter, GlowShift Gauges, 2" Leveling Kit, Bilstien 5100's, Amsoil Bypass/w 15W-40 and still upgrading.
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post #4 of 5 (permalink) Old 03-02-2011, 08:22 PM
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This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of DaimlerChrysler Corporation.
THE StarSCAN® FLASH FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM
THE INTERNET.
SUBJECT:
Flash: Check Gauges Lamp Illuminates For Alternator Charging With DTC P2502, P2503,
or P2509
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (Cummins PCM) with new software.
MODELS:
2006 - 2007 (DH/D1) Ram Truck (2500 / 3500)
NOTE: This bulletin applies to vehicles equipped with a 5.9L engine (sales code
ETH) built on or before November 29, 2006 (MDH 1129XX).
SYMPTOM/CONDITION:
The customer may experience the illumination of the “Check Gauges” lamp on the
instrument panel cluster. Inspection of the gauges may reveal that the battery charging
gauge may read in the 11 volt range rather than in the 14 volt range. There may not be a
Check Engine / Malfunction Indicator Lamp (MIL) illumination.
Further diagnosis may reveal the following Diagnostic Trouble Codes (DTC's) have been
set:
P2502 - Charging System Error - Diesel
P2503 - Charging System Output Low - Diesel
P2509 - Powerdown Data Lost Error - Diesel
DIAGNOSIS:
Using a Scan Tool (StarSCAN®) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTCs are
present record them on the repair order and repair as necessary before proceeding further
with this bulletin.
If the vehicle operator describes or experiences the Symptom/Condition, perform the
Repair Procedure.
NUMBER: 18-001-07
GROUP: Vehicle Performance
DATE: January 06, 2007

2007 Dodge 3500 MegaCab Laramie CTD 4x4 Patroit Blue Just a bunch of Go fast parts and programing
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post #5 of 5 (permalink) Old 03-02-2011, 08:26 PM
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I'm still thinking it is a ground issue.. Pull the cables off, inspect the Clamps and Cables and clean them if need be and reconnect and see if that helps.. Otherwise it might need the flash in the above TSB..

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