NHTSA ID Number: 10120401
Manufacturer Communication Number: MI12-04C
TSB/Document Date: 2017-10-21
Summary
This Maintneance informations presents an improved harness and wiring modification procedure to avoid certain fault codes and messages.
9. Solder 0RB7-12 wire with
the 0RB7 wire, part of the
new harness. Heat shrink
the connection
10. Secure all cables
MI12-04A / Page
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11. Routing in last luggage
bay
–Follow
existing
harness.
DO NOT ATTACH TO DEF
LINES.
12. Drill 1-1/8’’ hole using a
unibit style bit and install
rubber grommet #504397.
MI12-04A / Page
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13. In rear axle well, run
harness through grommet
and seal with Sikaflex 221
#682176.
14. Run harness down and
attach to the air line going
to the back of the engine,
LH of air tank.
MI12-04A / Page
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In engine compartment. Accessible through rear access panel inside the coach, close to
the restroom. Looking towards the left.
15. Run
harness
from the tag axle
area
(previous
step) up to the
back of the coach
following
main
harness.
Ground cable
(black) should be
run to the rear
electrical
compartment.
16. Harness routing in engine compartment
MI12-04A / Page
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17. Open
exhaust
aftertreatment
system
access
door.
18. Disconnect
existing
temp
sensor
connectors.
19. Connect harness
to DPF temp
sensor
connectors, B85,
B97 and B98.
20. Seal and secure
unused
connectors.
21. In rear electrical
compartment,
route cable as
shown.
22. Remove
grey
plastic cover and
connect #561246
ring terminal to
electronic
ground.
MI12-04A / Page
9/18
Using Premium Tech Tool open VCADS pro and verify Fault Codes.
Next will be to go to the DPF Service Regeneration page 2545-08-03-03 and start a Park
Regeneration.
Monitor all 3 temperature sensors to confirm all 3 sensors are reading correctly.
MI12-04A / Page
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INSTRUCTION PART “A”
X3-45, X3 VIP AND XLII-45 – ROUTING OF 068434 HARNESS.
DANGER
Park vehicle safely, apply parking brake, stop engine and set battery master switch(es) to the
OFF position prior to working on the vehicle.
General view of X3 routing from the ACM in condenser compartment up to the DPF
Top view of suggested harness routing. As a reference, position green tape on
transversal cable support above transmission. Routing is realised from this point up to
DPF and up to ACM in condenser compartment.
MI12-04A / Page
11/18
1. Place green tape on
transverse cable support
above transmission.
Use rear floor hatch to
position harness.
2. Route 0RB8B ground
cable to rear electrical
compartment.
3. Use
any
available
passage through rubber
boot, upper or lower.
MI12-04A / Page
12/18
4. Ground connexion in rear
electrical compartment
5. Routing towards DPF.
MI12-04A / Page
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6. Open
aftertreatment
access door.
Exhaust
system
7. Disconnect existing temp
sensor connectors.
8. Connect harness to DPF
temp sensor connectors,
B85, B97 and B98.
9. Seal and secure unused
connectors.
10. From green tape up to
condenser compartment,
over tag and drive axles.
11. Use any existing free
passage from axle well to
condenser compartment.
12. Make sure harness is not
exposed to sharp edges.
MI12-04A / Page
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Routing and connections at the ACM
13. Follow existing harness in condenser
compartment.
14. Open the ACM harness to access
back of connector.
15. Locate and remove wires below:
Pin
511
39
512
42
513
34
526
55
0RB7
57
0RB7A
58
0RB7B
59
16. Replace removed wires with wires
from harness #068434.
Pin
511
39
512
42
513
34
526
55
0RB8
57
0RB8A
58
0RB8B
59
When removing wires, lightly push yellow
lock lever to release terminals.
Use extractor tools #687976 & #683594
to replace pins.
MI12-04A / Page
15/18
17. Tape the wires inside the harness.
Tape the convoluted tubing.
Using Premium Tech Tool open VCADS pro and verify Fault Codes.
Next will be to go to the DPF Service Regeneration page 2545-08-03-03 and start a Park
Regeneration.
Monitor all 3 temperature sensors to confirm all 3 sensors are reading correctly.
PARTS / WASTE DISPOSAL
Discard waste according to applicable environmental regulations (Municipal/State[Prov.]/ Federal)
MI12-04A / Page
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INSTRUCTION PART “B” - H3-45 AND H3-45 VIP
1. In rear electrical compartment, locate
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 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 12 CPC 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 Relay
from VECF as it is now unused.
MI12-04A / Page
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INSTRUCTION PART “B” - X3-45, X3-45 VIP AND XLII-45
1. In rear electrical compartment, locate
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 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 waste according to applicable environmental regulations (Municipal/State[Prov.]/ Federal)
MI12-04A / Page
18/18
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TSB/Document ID: MI12-04C
Replacement Service Bulletin Number:
MFR Communication Date: 2016-04-13
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
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