Fuel System - Prior Approval/Improved Fault Tracing
Title: Improved fault tracing / Prior Approval for fuel distribution system (PEM)Ref No: US25477.1.0 en-US
Issuer: -
Partner: 3 US 7510 Volvo Cars North America
Func Group: 2340
Func Desc: fuel tank, fuel lines, evaporator system
Status: Released
Status Date: 2012-01-17
Issue Date: 2011-12-06
Reference: VIDA, SMB 23-037, CPI 02-212
Attachment
Vehicle Type
CSC Customer Symptom Codes
DTC Diagnostic Trouble Codes
Text
CSC = Customer Symptom Code
DTC = Diagnostic Trouble Code
Note!
If using a printed copy of this Technical Journal, first check for the latest online version.
DESCRIPTION:
Beginning January 23rd, 2012, Volvo Cars of North America will add P1* Pump Electronic Modules (PEM) to Prior Approval. The technician should use the Prior Approval application on VRC2. To find this application, log into VRC2, choose the Service tab, choose Technical on the left side of the screen, and then choose Prior Approvals. If not done already, retailers should refer to the News document on VRC2 and make sure that technician access is settled. This TJ will explain the prior approval process required for submission of any claim for the replacement of a PEM.
*P1 includes 2004-2011 S40, 2005-2011 V50, 2006- C70, 2007- C30.
Improper repairs performed at a Volvo retailer or at an independent retailer may void the spare parts counter warranty (claim 06), spare parts stock warranty (claim 07), or the spare parts warranty (claim 08). For this reason, the procedures outlined in this TJ, VIDA, and the prior approval program should be followed for ALL repairs.
Volvo is also releasing this information in order to help and guide the technician when diagnosing fuel distribution related symptoms/DTC's.
Analysis of replaced PEM's (Pump Electronic Modules) from the field have shown to have no errors. To prevent faulty replacement and repeat repair please follow this document. This information will also be available in VIDA 2012A.
For more information, please see component and function descriptions in VIDA, Design and Function section 2 Engine with mountings and equipment - > 28 Ignition and control systems -> 284 control system, fuel supply.
SERVICE:
Fault tracing steps:
Diagnostic Trouble Codes (DTCs) for fuel distribution related faults (customer complaints related to Check Engine Light (CEL) illuminated):
1. If any of following DTC's are set (after following the Vida fault tracing and checking the wiring harness, connectors and fuse/relay) the PEM may be at fault:
CEM 3A04, 3A05, 3A07, 3A08
or
ECM 2610 (B5244S4/B5244S7/B5244T7)
or
ECM 2120 (engine B5244S4/B5244S7/B5244T7)
or
ECM 291B, 291C, 291D (engine B5254T3 2004)
2. The PEM may be at fault if any other ECM DTCs , related to fuel distribution (e.g. fuel trim, fuel pressure sensor, fuel pressure control etc), are stored.
However, all possible causes in listed VIDA instructions first have to be investigated.
If any of the following DTC's are stored, the fuel pressure sensor should be investigated first:
ECM 2600, 2600A (engine B5244S4/B5244S7/B5244T7)
or
ECM 2100 (engine B5254T3 MY2004)
or
ECM 2800, 280B, 280C, 280D (engine B5254T7/B5254T3 MY2005-)
If any of the following DTCs are stored, the fuel pump should be investigated first:
ECM 261A (engine B5244S4/B5244S7/B5244T7)
or
ECM 291A (engine B5254T3 MY2004)
or
ECM 2900, 290B, 290C, 290D (B5254T7/B5254T3 MY2005-)
Before determining that the PEM is at fault, quick test of the fuel pressure system (engine B5254T7/B5254T3) or test of fuel pump (engine B5244S4/B5244S7/B5244T7) should be performed, you can find this in VIDA Repair -> Cleaning, Inspection and Adjustment -> Section 2 Engine with mountings and equipment -> 23 Fuel system -> 238 Control system and Fuel system pressure, checking.
If wiring harness connectors and fuse/relay related faults have been dismissed and the quick test proves that there is a fault, then the PEM should be replaced.
Customer complaints related to crank-no start/long crank time and/or engine stall/hesitation:
If the customer complaint is related to crank-no start/long crank time, engine stall, or engine hesitation and if there are no DTC's set, then follow basic fault tracing based on the symptom (e.g. fuel level check, fuel pressure check, check for proper spark at the plugs, etc..) If any fuel distribution related DTC's mentioned above are stored, please follow instructions in point 1 and 2. If all diagnostic is ok PEM replacement should be the correct repair.
For all DTC's, frozen values and DTC counters first have to be investigated. Wiring harness, connectors and fuse/relay related faults need to be checked first.
In all other cases, PEM replacement is the wrong remedy and will most likely end up with repeat repair. Instead, please follow VIDA instructions to find other possible causes to solve the issue.
If PEM was found to be at fault, you will need to fill out and submit it to Prior approval. Forms not filled out with the necessary information will be rejected. Information like duty cycle, fuel pressure and the result of the fuel pump test in most cases are mandatory.
Any vehicle that falls into campaign 190 does not require prior approval.
VOLVO STANDARD TIMES GUIDE (VSTG) INFO:
Operation number 28411-2 - Fuel pump control module, replace - See VSTG
Operation number 28466-3 - Engine Control Module, fault tracing DTC- See VSTG
Operation number 36001-2 - Diagnostic Trouble Codes, read / reset. DTCs in VIDA - See VSTG
- Claims may be submitted under the new car warranty when there is a documented customer complaint using claim type: 01
- Labor times are valid at the time of release and are subject to change.