552034 Service Bulletin/Repair Instructions

EXT SWITCH
48B
A B C D

E F G H
35A

37
53A
58A
B/O 64

CN# P64

# GA. COLOR WIRE

A 14G

BLUE

BUL

B 14G GREEN

RSR

C 14G YELLOW RSL

D 14G BROWN MKR

E 14G

RED

STP

F 12G WHITE

G31

G 12G WHITE

G32

H N/A

PLUG

PLUG

CONNECTOR TERMINAL

15326654

15366684

PLUG

SEAL

12059168

15366067
5
3000W

INVERTER

CHARGER
3
3

6

9

12

15
ELEC PNL
4

2
53H
150
150
ELEC PNL
1
53D
B/O 53D

CN# P53D

# GA. COLOR WIRE

1 16G WHT/ORG LPTR

2 16G WHT/BRN BWTR

3 N/A

N/A

N/A

4 16G WHT/GRY GWTR

5 N/A

N/A

N/A

6 16G WHT/RED FWTR

7 16G ORANGE LPT

8 16G BROWN BWT

9 N/A

N/A

N/A

10 16G GRAY

GWT

11 N/A

N/A

N/A

12 16G

RED

FWT

CONNECTOR TERMINAL

39-01-2120

39-00-0077
INVTR CBL
3
2
10
90
R BATH USB
48E
4
30
56
200
R BATH LT
48D
B/O 53C

CN# P53C

# GA. COLOR WIRE

1 16G WHITE

MPG

H9

2 16G

RED

BLUE

3 16G

GSH

PINK

SC1

4 16G

CONNECTOR TERMINAL

39-01-2040

39-00-0077
BW TANK
120
B/O 53B

CN# P53B

# GA. COLOR WIRE

1 16G BROWN GSC

2 16G GREEN

GSS

3 16G

RED

GSR

4 16G ORANGE GSI

CONNECTOR TERMINAL

39-01-2040

39-00-0077
CABLE IN

RG6 ORG (TVC)

RG6 BLU PORT SAT
R. BATH SW
R BATH LT
48C
53G
53E
130
48F
B
60
150
53C
GW TANK
AH COZY #5
CZ5
ROPE LTS

16 GRY (ALS1)

16 WHT (GND)
42D
WSH/DRY LT BED COAX
42C
WARD. LT
42B
WAR USB
42A
53B
B/O 21

CN# P21

# GA. COLOR WIRE

1 12G ORG/BLU BCP

2 18G WHT/BLU SGND

3 14G WHITE

G22

4 N/A

N/A

N/A

5 N/A

N/A

N/A

6 10G ORANGE TCP

N/A

N/A

7 N/A

8 N/A

N/A

N/A

9 12G YELLOW RMP

10 N/A

N/A

N/A

11 10G

RED

ESP

12 N/A

N/A

N/A

13 16G YELLOW

ESI

14 18G BRN/YEL KOF

15 14G YELLOW RAD

CONNECTOR TERMINAL

770023-1

770251
12 11 10 9
8
7
6
2
1
5
4
3
B/O 46E

CN# J5

# GA. COLOR WIRE

1 16G ORANGE DOH

2 16G D. BROWN H15

3 16G BLUE

H16

N/A

N/A

4 N/A

5 16G GRAY

ALS1

6 16G GRAY

ALS1

7 N/A

N/A

N/A

8 N/A

N/A

N/A

CONNECTOR TERMINAL

39-01-2080

39-00-0077
D
B/O 46H

CN# J8

# GA. COLOR WIRE

1 16G BLACK

H2F

2 N/A

N/A

N/A

3 N/A

N/A

N/A

4 16G GRAY

F3F

5 N/A

N/A

N/A

6 N/A

N/A

N/A

CONNECTOR TERMINAL

39-01-2060

39-00-0077
B/O 46J

CN# J9

# GA. COLOR WIRE

1 16G GRAY

F6F

N/A

N/A

2 N/A

3 N/A

N/A

N/A

4 N/A

N/A

N/A

5 N/A

N/A

N/A

6 N/A

N/A

N/A

CONNECTOR TERMINAL

39-01-2060

39-00-0077
B/O 46M

CN# J12

# GA. COLOR WIRE

1 N/A

N/A

N/A

2 N/A

N/A

N/A

3 18G BLACK

BCR

4 N/A

N/A

N/A

5 N/A

N/A

N/A

6 N/A

N/A

N/A

7 N/A

N/A

N/A

8 N/A

N/A

N/A

9 N/A

N/A

N/A

10 N/A

N/A

N/A

N/A

N/A

11 N/A

12 16G GRN/BLK ROF

CONNECTOR TERMINAL

39-01-2120

39-00-0077
DETAIL A
EST
1/16/19
CHASSIS HARNESS
37RB
2
OF
2

G
D02020810
E
120
16
16
30
32
20
32
16
20
16
30
BATH LT
32
20

30
10

BR3
BATH LT
44
16
16
16
30
35
REAR CL LT
32
RC1

BED CL LT
BR1
20
10
90
30
RB3
85

45
60
BUNK LT

SLR CONT
50
BK1

SC
90
30
SAT2
90
70
RC2
20
#10 RING
KIT VENT
KIT CL LT
V3
SP
FRONT A/C
35
V1

60
KC1
BK2
AC1

KIT CL LT
BED CL LT
30
KIT CL LT
BR5
C66B

ROOF HARNESS CONNECTION

UMNL II 9-POS CAP (FEMALE)
80
BATH LT

FNT CL LT
BR2
300
LC3
LC2
AC2
BED CL LT
30
LR CL LT
KC2
70

REAR A/C
55
10

BTH VENT
16
LR CL LT
LC1
55
REAR CL LT
BATH LT
16
30
LR CL LT
BR4
70
16
10
70
BED CL LT
RB2

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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

This product presentation was made with AAWP plugin.

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