Instruction Sheet

IS-19911C

INTELLIGENT SLEEP MODE INSTALLATION
H SERIES COACHES FROM G-3129 UP TO J-0184 WITH PRIME

Revision: C

Added instructions for vehicles with ELD systems. Step
06-12-2019
18&19 was 85 is 85A

MATERIAL
H-series coaches, order kit IS19911 which contains:
Part No.

Description

Qty

062305

HARNESS_ISM_H

1

5001245

SCR TC HEXW Z050 12-24 X 1/2

3

5001341

WSH FL SS 8.4X17X1.6 (M8,5/16)

2

5001787

NUT HEX NYRT SS M8-1.25X9.5

2

506004

RUB AD1 CC POL 3/8" X 1/2" X 20'

2 in

560493

RELAY, LATCHING 24V BDS-A

1

560529

BASE, RELAY

1

560538

COVER, RELAY

2

560539

SCREW, M8, RELAY

2

563158

SHRINK TUBING, DOUBLE WALL / .300” - .060”

3 in

562935

BUTT SPLICE / 22-18 / RED

2

IS-19911

Instruction Sheet

1

FI-19911

Feuille d’instructions

1

NOTE
Material can be obtained through regular channels.

DESCRIPTION
Use this instruction sheet to add ISM to your vehicle.
PREREQUISITE: Coach must have PRIME hardware installed.
This can be confirmed visually by looking for the current sensors and smart equalizer in the main power
compartment. Refer to Figure 1 & Figure 2. The smart equalizer has a data connector in addition to the
usual battery power connections. Also confirm the SOC% is present in the DID gages menu. (Figure 3)

Writer: FL

IS-19911C
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FIGURE 2: 12V & 24V CURRENT SENSORS

FIGURE 3: BATTERY SOC

FIGURE 1: EQUALIZER DATA CONNECTION, 12 & 24V
CURRENT SENSORS

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TOOLS



Laptop with VPG** software.
Serial interface cable or USB to serial adapter (may be required on some laptops)



C18 Amp Mate-N-Lok pin extractor 682257 (Amp 31885-1)

FIGURE 4:682257



C71 Amp CPC pin extractor 681598 (Amp 305183 R)

FIGURE 5:681598



VECF / VECR pin extractor: 682256 (Packard 12094429)

FIGURE 6:682256



A36 (MCM) pin extractor: 683766

FIGURE 7: 683766

** Contact Prevost Service Manager or Prevost Service Center to perform the update

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PROCEDURE

DANGER
Park vehicle safely, apply parking brake, stop engine.

ABOUT INTELLIGENT SLEEP MODE (ISM)
ISM is a battery-saving mode designed to limit battery discharge. The ISM will automatically change the
vehicle electrical system from normal functional state to sleep mode if the battery SOC falls below 65%
(12.2V / 24.4V).
Once the vehicle has entered into sleep mode, the only actions needed to put the vehicle back into its
normal functional state are:
 Cycle the ignition key from OFF to ON;
or
 Open the entrance door;
or
 Turn on the hazard lights.
ISM forces the vehicle to go into sleep mode if all the following conditions are met:
1.

The engine is not running;

2.

The parking brake is applied

3.

The ignition switch is at the ON, ACC positions or at the OFF position but the 15 minutes
“wake up” period after engine shutdown is not expired.

4.

The battery state of charge of 12V or 24V system falls below 65%.

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PROGRAMMING WITH VPG
Programming must be
completed before any
wiring modification.
1.

Connect
the
laptop
to
the
vehicle with the
serial cable.

2.

In VPG, Click on
Vehicle
Parameters

FIGURE 8: VPG

3.

On
the
ISLEEP
parameter line, click on
the word No and Set
parameter ISleep to Yes

4.

Generate the program

5.

Transfer the program to
the vehicle

FIGURE 9: ISLEEP PARAMETER

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H Series - NEW RELAY ASSEMBLY & INSTALLATION
6. Pre-assemble the relay. Do not
tighten the nuts.
560539; M8 Stud
5001787; M8 Nut , SS
5001341; Flat Washer, SS
560529; Relay base
560493; Relay
560538; Cover

FIGURE 10:RELAY ASSEMBLY

7.

Cut and stick two pieces of
506004 foam in the relay base
stud cavity.

FIGURE 11: ADDING FOAM UNDER RELAY BASE

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DANGER
Set the ignition switch to the OFF position and trip the main circuit breakers CB2 & CB6.
8.

Create working space in the fore
section of the compartment by
removing three I/OA modules
and
the
ABS
module.
(Figure 12)

FIGURE 12: I/OA AND ABS MODULES

9.

For certain vehicles with ELD
systems from J-0082, the ELD
module will have to be moved to
the left of the Front Junction
Box.

10. You will find the ELD module
installed between the ABS
module and the I/OA modules
11. See Special Instructions at the
end of this document.

FIGURE 13: ELD MODULE

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12. Remove ABS module and
customer junction rail mounting
bracket.
13. On a working table, mark hole
locations
as
shown
on
Figure 14. Use relay base as a
template.
14. Drill three 3/16” (0.188”) holes at
marked locations.
15. Use 3 5001245 self-tapping
screws to secure the relay subassembly on the plate.

FIGURE 14: DRILLING

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FRONT ELECTRICAL COMPARTMENT WIRING

FIGURE 15: A36 PINOUT
FIGURE 16: A36 CONNECTOR SECONDARY LOCK

FIGURE 17: C2 PINOUT

FIGURE 18: C18 PINOUT

FIGURE 19: VEC TYPICAL CONNECTOR PINOUT

FIGURE 20: VEC TERMINAL EXTRACTION

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FIGURE 21: CONNECTOR LOCATION OVERVIEW

FIGURE 22:C18 & C2 WIRING REMOVAL IN FRONT ELECTRICAL COMPARTMENT

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16. Locate A36; C18 and connector C2. (Figure 21) You will find C2 quite deep inside the cavity shown
by the arrow, on the ceiling above the pneumatic panel.
17. Disconnect wire 911 JA: 17 of module A36 (Figure 15). Remove terminal using extractor 683766. Cut
terminal and insulate with a heat-shrinkable sleeve. (Figure 22)
18. Disconnect wire 85A from C18:3 pin side using extractor 682257. Cut terminal and insulate wire with
a heat-shrinkable sleeve.
19. Disconnect wire 85A from C18:6 pin side. Cut terminal and insulate wire with a heat-shrinkable
sleeve.
20. Disconnect wire 85A from C2:13, socket side. Cut terminal and insulate wire with a heat-shrinkable
sleeve.
21. Connect plug R21A from harness 062305 to
relay.

FIGURE 23: CONNECTING TO THE RELAY

FIGURE 24: 062305 HARNESS INSTALLATION

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22. From R21, three (3) wires go directly to the MCM (Figure 24).
Note: If harness 062305 seems tight, remove some of the tape or cable ties used to bundle the
harness for shipping.
23. Wire 911 will be connected at pin 17 of the JA connector.
24. The other 2 wires are named:
A36JA.7
A36JB:29
They are connected to JA:7 and JB:29
25. Connect wire 85 with ring terminal to relay at position A. Tighten to maximum 13N-m (115 lb-in).
26. Connect the two wires 85 labeled C18A to connector C18, positions 3 and 6.
27. Connect wire 85A with ring terminal at position B of the relay, Tighten to maximum 13N-m (115 lbin).
28. Connect wire 85A labeled C2A to connector C2, position 13.
29. Re-install removed modules in the front junction box.
CONFIRMING PROPER OPERATION OF ISM
With Battery SOC around 66%, confirm proper operation of sleep mode by leaving internal and external
lights on and letting the batteries drain down. Monitor the State of charge in the DID. The system should
shut down when either the 24V or 12V SOC falls below 65%.
Secure any harness or connector that was loosened while performing the bulletin.

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

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SPECIAL INSTRUCTIONS FOR ELD MODULE RELOCATION.
A. Unplug and remove the ELD
module and bracket from the
original location.
B. Keep hardware and bracket for reuse.
C. Hardware reference:
502868 Self tapping screw (4x)
500855 Washer (2x)

FIGURE 25: ELD MODULE

D. Free up some length in the ELD
harness by cutting cable ties.

E. Test
module
and
bracket
placement on the left side of the
front junction box shelf. Make sure
it clears the neighbouring I/OA
module.

F. Once satisfied with the fit and
location, mark hole locations and
drill 4mm holes,
FIGURE 26: BRACKET RELOCATION.

G. Secure the bracket on the wall
using two #10 thread cutting
screws 502868.

H. Mount module on bracket with
reserved
hardware.
Washer
500855 and screw 502868 (2x)

I.

Secure harness with cable ties.

J.

Continue procedure with next
steps of the installation of the ISM
module.
FIGURE 27: INSTALLED MODULE

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K. Final installation of ELD and ISM
modules should look like this.

FIGURE 28: FINAL INSTALLATION OF ELD AND ISM MODULES

Writer: FL