MAINTENANCE
INFORMATION
DATE :
SUBJECT :

MI16-22

APRIL 2016
SECTION : 06 - Electrical
MARKER LIGHTS ON IN SLEEP MODE

IMPORTANT NOTICE
This modification is recommended by Prevost to increase your vehicle's performance. Note that no
reimbursement will be awarded for carrying out this modification.

APPLICATION
Model
X3-45 coaches
X3-45 VIP motorhomes
X3-45 VIP commercial use
XLII-45 Entertainer

VIN

With Volvo D13 engine up to 2PCG3349XCC735274 incl.

Model Year : 2008 - 2012
H3-41, H3-45 coaches
H3-45 VIP motorhomes

With Volvo D13 engine up to 2PCVS3497CC712058 incl.

Model Year : 2008 - 2012

DESCRIPTION
Use this maintenance information procedure to resolve an undesired behaviour on 2008-2012 vehicles. In
sleep mode, certain marker lights may remain illuminated.
Refer to Fig 1, to positively identify a vehicle.

MI16-22 / Page 2 / 5

MATERIAL
Parts that may be required depending on vehicle condition:

Part No.

Description

Qty

504637

CABLE TIE 3/16” X 13”

1

560784

DOUBLE WALL SHRINK TUBE

1

562228

BUTT SPLICE

562368

TAB TERMINAL 12-8

2

562593

CABLE, YELLOW, 18 GAGE, TXL

1

562771

SOCKET TERMINAL 22-18

563588

PIN TERMINAL 20-16

1

563603

SOCKET TERMINAL 20-16

1

680319

ELECTRICAL TAPE

40

1 ft

10 ft

PROCEDURE
DANGER
Park vehicle safely, apply parking brake, stop engine. Prior to working on the vehicle, set the ignition
switch to the OFF position and trip the main circuit breakers equipped with a trip button. On Commuter
type vehicles, set the battery master switch (master cut-out) to the OFF position.

MI16-22 / Page 3 / 5

Figure 1 : Illuminated marker lights. (H)

MI16-22 / Page 4 / 5

1. If MI12-04 Part B “VECU SUPPLY“ has already been performed on the vehicle, remove relay R22 in
VECF.

Figure 2 Typical location of R22 in VECF.

2. If MI12-04 part B has not been performed. Proceed with MI12-04C released in April 2016 which
includes the removal of R22. This applies to vehicles with EPA 2010 engines onward.
3. On US 2007 vehicles with Volvo engine (Without DEF) perform instructions below according to model.

H3 SERIES US07 VOLVO D13 ENGINE
1. In rear electrical compartment, locate relay
R31
2. Cut existing tab terminal at pin 30.
3. Crimp new wire #562593 and existing 12ECU
wire on #562368 tab terminal. Replace at pin
30 of R31.
4. Install #563588 pin and #563603 socket
terminal to pass new wire through connector
C21.
5. (Use extractor tool #682321)
6. Splice new wire end with SP17.
#562228 butt splice
#560784 shrink tube
7. Locate SP17 in front electrical and service
compartment it is located near C2.
8. Cut wire 12CPC at VECU JA13.
9. Run a new 12CPC wire from spare wire SP17
to JA13. Install #562771 terminal and
connect.
10. Once completed, remove R22 from VECF as
it is now unused.

MI16-22 / Page 5 / 5

X3SERIES US07 VOLVO D13 ENGINE
1. In rear electrical compartment, locate
relay R34
2. Remove existing tab terminal at pin 30.
3. Crimp a new wire #562593 and existing
12ECU wire on #562368 tab terminal.
Replace at pin 30 of R34.
4. Install #563588 pin and #563603
socket terminal to pass through
connector C21. (Use extractor tool
#682321 as required)
5. Connect new wire end with SP17.
#562228 butt splice
#560784 shrink tube
6. In front electrical and service
compartment, cut wire 12VECU at
VECU JA13 in front junction box.
7. Run a new 12VECU wire from SP17 to
JA13. Install #562771 terminal and
connect.
8. Once completed, remove R22 Relay
from VECF as it is now unused.

PARTS / WASTE DISPOSAL
Discard according to applicable environmental regulations (Municipal/State[Prov.]/ Federal)

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