552034 Service Bulletin/Repair Instructions

D02020810 REV_G 37RB CHASSIS HARNESS DLC

W I RE #
STARTS
CAVI TY
GAUGE
STRI P E
EN DS
CAVI TY
N OTES
DRIVERS SWITCH PANEL

KITCHEN CABLE

BUSS #1 ST THE MPLX MODULE

LIVING ROOM CABLE

BEDROOM WALL CABLE

BED CABLE

EXTERIOR CABLE

FRONT BATH CABLE

EXTERIOR MONITOR PANEL

REAR BATH CABLE

7" TOUCHSCREEN CABLE

EMS CABLE
#1

#1

#1

#2

#2

#2

#3

#3

#3

#3

#4

#5
28B

8B

8B

35A

4A

4A

50A

50A

53H

53H

28A

47
STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT
CAT

CAT

CAT

CAT

CAT

CAT

CAT

CAT

CAT

CAT

CAT

CAT
N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A
8A

8A

8C

44

44

8C

8C

53E

53E

48B

8C

8C
STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT

STRAIT
DRIVERS SWITCH PANEL TO ENTRY SWITCH PANEL

ENTRY PANEL TO KITCHEN SWITCH PANEL

KITCHEN SWITCH PANEL TO MPLX MODULE

LIVING ROOM PANEL TO BEDROOM WALL PANEL

BEDROOM WALL PANEL TO BED PANEL

BED PANEL TO MPLX MODULE

FRONT BATH TO MPLX MODULE

EXTERIOR SWITCH PANEL TO FRONT BATH

EXTERIOR SWITCH PANEL TO EXTERIOR MONITOR PANEL

EXTERIOR MONITOR PANEL TO REAR BATH

TOUCHSCREEN HOMERUN

EMS HOME RUN
CABLE TV IN

PORTABLE SATELLITE

BEDROOM COAX

EXTERIOR ENTERTAINMENT COAX

MAIN TV
TVC

TVC

TVC

TVC

TVC
17

17

17

17

17
N/A

N/A

N/A

N/A

N/A
RG6

RG6

RG6

RG6

RG6
ORANGE

BLU

GRY

GRY

GRY/ tape red
N/A

N/A

N/A

N/A

N/A
56

56

42D

9

5C
N/A

N/A

N/A

N/A

N/A
EXTERIOR CABLE COAXIAL CIRCUIT
AUTO GEN START TRIGGER
A1G
26
11
18
YELLOW
N/A
22
3
ELECTRICAL COMPARTMENT CHASSIS POWER DISTRIBUTION
HEAT

HEAT

HEAT

HEAT
A2X

A4X

A5X

A6X
66B

66B

66B

66B
8

9

3

4
16

16

16

16
BLUE

BLUE

BLUE

BLUE
WHITE

BLACK

WHITE

BLACK
43B

43B

43B

43B
N/A

N/A

N/A

N/A
AQUAHOT

AQUAHOT

AQUAHOT

AQUAHOT
ALL

G6
46C

16
4

N/A
16

16
GREEN

WHITE
YELLOW

N/A
16

19
N/A

N/A
AWNING LIGHT

AWNING LIGHT GROUND
ALS1

ALS1

ALS1

ALS1

G16

G16

G16

G16
46E

46E

50B

48F

35

46N2

50B

48F
5

6

~

~

N/A

N/A

~

~
16

16

16

16

16

16

16

16
GRAY

GRAY

GRAY

GRAY

WHITE

WHITE

WHITE

WHITE
N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A
46N2

35

SPLICE

SPLICE

19

19

SPLICE

65
N/A

N/A

N/A

N/A

~

~
KITCHEN BASE FOR TOE KICK ROPE LIGHTS

AISLE LIGHTS IN LR/DINETE SLIDEOUT

MID BATH

REAR BATH

AISLE LIGHTS IN LR/DINETE SLIDEOUT

KITCHEN BASE FOR TOE KICK ROPE LIGHTS

MID BATH

REAR BATH
APO

APO

G2

G2
46L

17

28

17
1
14

14

12

12
YELLOW

YELLOW

WHITE

WHITE
BLACK

BLACK

N/A
27

SPLICE

19

SPLICE
5
TO TV BOOSTER AT CAB HARNESS LOCATION 5
N/A
CAB HARNESS GROUND
SATELLITE ANTENNA

SATELLITE PREP GROUND
APO1

G5
46L

28
2

5
14

12
YELLOW

WHITE
BLACK

N/A
27

19
6

N/A
TO SATELLITE PREP AT CAB HARNESS LOCATION 4

TO SATELLITE PREP AT CAB HARNESS LOCATION 4
12V ACCESSORY PORTS

12V ACCESSORY PORTS GROUND

range

USB CHARGING PORTS

USB CHARGING PORTS

USB CHARGING PORTS

USB CHARGING PORTS

USB CHARGING PORTS

USB CHARGING PORTS

USB CHARGING PORTS GROUND
APO2

G1
46K

28
1

1
14

12
YELLOW

WHITE
BLACK

N/A
28

19
4

N/A
O ACCESSORY PORTS AT THE MONITOR PANEL CONNECTOR AT TOWE

O ACCESSORY PORTS AT THE MONITOR PANEL CONNECTOR AT TOWE
APU

APU

APU

APU

APU

APU

G16
27

35

4B

42A

50

46L

48E
2

N/A

N/A

N/A

N/A

6

N/A
14

14

14

14

14

14

14
YELLOW

YELLOW

YELLOW

YELLOW

YELLOW

YELLOW

WHITE
WHITE

WHITE

WHITE

WHITE

WHITE

WHITE

N/A
48E

SPLICE

SPLICE

SPLICE

SPLICE

SPLICE

65
N/A

N/A

N/A

N/A

N/A

N/A

N/A
IN THE REAR BATHROOM VANITY AND FRONT OVERHEAD @ TOWER

TO USB PORTS IN LIVING ROOM SLIDEOUT OVERHEAD CABINET

TO USB PORTS IN THE BEDROOM OVERHEAD CABINET, HIS AND HERS

TO USB PORTS AT THE BEDROOM ENTERTAINMENT CENTER

TO USB PORTS IN THE FRONT BATHROOM VANITY

USB PORT POWER TO THE SPLICE

TO USB PORTS IN THE REAR BATHROOM VANITY
CI RCUI T DESCRI P TI ON (P RI N T)
TRIGGER

TRIGGER

TRIGGER

TRIGGER
AWNING LIGHT

GROUND AWNING LIGHT

AISLE LIGHTS

AISLE LIGHTS

AISLE LIGHTS

AISLE LIGHTS

GROUND AISLE

GROUND AISLE

GROUND AISLE

GROUND AISLE
LIGHTS

LIGHTS

LIGHTS

LIGHTS
POWER ANTENNA BOOSTER

CAB HARNESS GROUND
9/30/2022
2
3

3

3

3

3

3

3

3

3

3

3

3
COLOR

LVER

LVER

LVER

LVER

LVER

LVER

LVER

LVER

LVER

12 3 4 5...18

Bestseller No. 1

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black)

CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on. After repairing the vehicle's problems, it can quickly read and clear diagnostic trouble codes of emission system, read live data & hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information.
Sturdy and Compact: Equipped with a 2.5 foot cable made of very thick, flexible insulation. It is important to have a sturdy scanner as it can easily fall to the ground when working in a car. The AD310 OBD2 scanner is a well-constructed mechanic tool with a sleek design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is not a problem. The buttons are clearly labelled and the screen is large and displays results clearly.
Accurate Fast and Easy to Use: The AD310 scanner can help you or your mechanic understand if your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine trouble emission codes in seconds after you fixed the problem. This device will let you know immediately and fix the problem right away without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.
OBDII Protocols and Car Compatibility: Many cheap scan tools do not really support all OBD2 protocols. AD310 scanner as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device also has extensive vehicle compatibility with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Pls confirm with our customer service whether it is compatible with your vehicle before purchasing.
Home Necessity and Worthy to Own: This is an excellent code reader to travel or home with as it weighs less and it is compact in design. You can easily slide it in your backpack as you head to the garage, or put it on the dashboard, this will be a great fit for you. The AD310 is not only portable, but also accurate and fast in performance. Moreover, it covers various car brands and is suitable for people who just need a code reader to check their car.

Bestseller No. 2

MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow

Multi-Functions - Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed.
Wide Capability - Supports 9 protocols compatible with most 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN domestic or import vehicles. Supports 6 languages - English,German, Dutch, Spanish, French, Italian.
2.8" LCD Display - Designed with a clear display 2.8" Large LCD screen - white backlight and contrast adjustment. No need any battery or charger, OBD reader gets the power directly from your vehicle through the OBDII Data Link Connector.
Compact Design - Car diagnostic scanner is equipped with a 2.5 feet long cable and made of a very thick flexible insulator.There are 6 buttons on OBD2 Scanner:scroll up/down,enter/exit and buttons that quick query VIN vehicle number& the DTC fault code.
ABS / Airbag codes NOT Supported - It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.

Bestseller No. 3

FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light

【Your Personal CEL Doctor – Read & Clear Engine Codes】The NT301 OBD2 scanner lets you read diagnostic trouble codes (DTCs), check em-issions readiness, turn off your Check Engine Light (CEL) or MIL, reset monitors, and view live data streams. It retrieves your vehicle's VIN instantly. Like all standard OBD2 scanners, it clears codes only after repairs are completed—if the issue persists, the code will return. Designed for DIYers who want to understand what’s really going on under the hood.
【Easy Code Reading – Just Plug & Play】Simply plug into the OBD2 port, turn the ignition to “ON” (engine off), and select the correct menu: Select OBDII-> Wait for seconds-> Select Read codes. For accurate results, ensure your vehicle is compatible and the OBD2 port is free from damage or wiring issues. No batteries needed— powered directly by your car.
【Live Data Graphing & Accuracy for Most OBD2 Vehicles】View and log live sensor data in graph form—monitor oxygen sensors, fuel trims, coolant temp, RPM, and more. Spot trends and suspicious values in real time. Compatible with most 1996+ gasoline cars, light trucks, and SUVs sold in the U.S., as well as many 2000+ European and Asian models. Also works on 12V diesel vehicles equipped with OBD2.
【S-mog Check Helper – Know Your Readiness Status at a Glance】With dedicated I/M readiness hotkeys and a simple Red-Yellow-Green LED indicator, you’ll instantly know if your vehicle is ready for em-issions testing. Built-in speaker provides audio feedback. No guesswork—just confidence before you head to the test center.
【A Must-Have Tool for Every Home Mechanic】Compact, rugged, and ready to use right out of the box. The 2.8” color screen is easy to read, even in daylight. No charging or setup required—just plug into the 16-pin DLC and start diagnosing. Recommended by professional mechanics on YouTube and trusted by DIYers worldwide.

Last update on 2026-03-20 / Affiliate links / Images from Amazon Product Advertising API

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