NHTSA ID Number: 11029067
Manufacturer Communication Number: 552034
TSB/Document Date: 2026-02-27
Summary
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TSB/Document ID: 552034
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-27
MFR Internal Campaign ID/Software Version: 552034
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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59B
SPLICE
SPLICE
SPLICE
65
B
N/A
N/A
N/A
N/A
OEM TO MISHIP MARKER LIGHT DRIVERS SIDE
SPLICE TO OVERHEAD CAB HARNESS FRONT CAP CLEARANCE LIGHTS
SPLICE TO MIDSHIP MARKER LIGHT PASSENGER SIDE
SPLICE TO TAIL LIGHT HARNESS
OEM TO MISHIP MARKER LIGHT DRIVERS SIDE
CI RCUI T DESCRI P TI ON (P RI N T)
BED SLIDOUT SWITCH (D/S REAR) IN
BED SLIDEOUT SWITCH (D/S REAR) OUT
WARDROBE SLIDEOUT SWITCH (P/S REAR) IN
WARDROBE SLIDEOUT SWITCH (P/S REAR) OU
BED SLIDEOUT MOTOR (D/S REAR) +
BED SLIDEOUT MOTOR (D/S REAR) WARDROBE SLIDEOUT MOTOR (P/S REAR) +
WARDROBE SLIDEOUT MOTOR (P/S REAR) DINETTE SLIDEOUT SWITCH (D/S FRONT) IN
DINETTE SLIDEOUT SWITCH (D/S FRONT) OUT
KEY ON FEED
RUN ON FEED
RUN ON FEED
RUN ON FEED
RUN ON FEED
SPLICE TO ANODE
SPLICE TO CATHODE
GND
GND
SANICON
SANICON
SANICON
SANICON
SANICON
SANICON
SANICON
RELAY + OUTPUT
RELAY + OUTPUT
SWITCH OUTPUT - SIGNAL TO RELAY
SWITCH OUTPUT - SIGNAL TO SWITC
SWITCH OUTPUT - SIGNAL TO RELAY
GROUND
GROUND
MARKER LIGHTS
MARKER LIGHTS
MARKER LIGHTS
MARKER LIGHTS
GROUND MARKER LIGHTS
9/30/2022
ST1
ST2
ST3
ST4
SM1
SM2
SM3
SM4
ST7
ST8
46F
46F
46F
46F
47A
47A
47B
47B
46F
46F
5
6
3
4
N/A
N/A
N/A
N/A
1
2
N/A
18
18
18
18
10
10
10
10
18
18
GREEN
GREEN
BLUE
BLUE
GREEN
GREEN
BLUE
BLUE
PINK
PINK
6 of 7
YELLOW
RED
YELLOW
RED
WHITE
BLACK
WHITE
BLACK
RED
YELLOW
54
54
54
54
54
54
54
54
53
53
6
5
8
7
2
3
4
9
1
2
N OTES
BED SLIDEOUT TRIGGER (IN)
BED SLIDEOUT TRIGGER (OUT)
WARDROBE SLIDEOUT TRIGGER (IN)
WARDROBE SLIDEOUT TRIGGER (OUT)
SLIDEOUT CONTROLLER TBD
SLIDEOUT CONTROLLER TBD
SLIDEOUT CONTROLLER TBD
SLIDEOUT CONTROLLER TBD
TO POWERGEAR MODULE, SWITCH TAP
TO POWERGEAR MODULE, SWITCH TAP
REAR
REAR
REAR
REAR
SURROUND
SURROUND
SURROUND
SURROUND
SPEAKERS
SPEAKERS
SPEAKERS
SPEAKERS
RADIO
RADIO
RADIO
RADIO
TO
TO
TO
TO
SLIDEOUT
SLIDEOUT
SLIDEOUT
SLIDEOUT
OADED INTO ONE WAGO, THERE ARE 3 POSTIONS, TWO ARE FILLED
1:05 PM
D02020810 REV_G 37RB CHASSIS HARNESS DLC
W I RE #
STARTS
CAVI TY
COLOR
STRI P E
EN DS
CAVI TY
N/A
N/A
N/A
SPLICE TO MIDSHIP MARKER LIGHT PASSENGER SIDE
GROUND TO TAIL LIGHT HARNESS
GROUND TO TAIL LIGHT HARNESS
LEFT TURN/STOP LAMP COMBO
LEFT TURN/STOP LAMP COMBO
LEFT TURN/STOP LAMP COMBO
RIGHT TURN/STOP LAMP COMBO
RIGHT TURN/STOP LAMP COMBO
RIGHT TURN/STOP LAMP COMBO
STOP LAMP
STOP LAMP
TOW MARKER
TOW CHARGE LINE
TOW CHARGE LINE GROUND
RSL
RSL
RSL
RSR
RSR
RSR
STP
STP
TMK
TCP
G15
23
59
59B
23
59
59A
23
25
59A
21
59
2
5
C
3
6
C
4
N/A
B
6
1
14
14
14
14
14
14
14
14
14
10
10
YELLOW
YELLOW
YELLOW
GREEN
GREEN
GREEN
RED
RED
BROWN
ORANGE
WHITE
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
WHITE
N/A
N/A
64
SPLICE
SPLICE
64
SPLICE
SPLICE
64
SPLICE
59
59
65
C
N/A
N/A
B
N/A
N/A
E
N/A
3
4
N/A
SEPERATOR TO TAIL LIGHT HARNESS CONNECTION
7 WAY CONNECTION
ELECTRICAL COMPARTMENT GROUND PLUG GR
BRAKE SEPERATOR MODULE GROUND
G22
G26
21
23
3
1
14
14
WHITE
WHITE
N/A
N/A
19
19
N/A
N/A
ELECTRICAL COMPARTMENT GROUND PLUG GROUND
BRAKE SEPERATOR MODULE GROUND
LP AUTOFILL SWITCH OUTPUT
LP SOL POWER
LP SOL POWER
LP/CO DETECTORS
LP/CO DETECTORS
LP SOL GROUND
LP/CO DETECTORS GROUND
LP SOL GROUND
58
58
34A
46L
34A
34A
40
58
N/A
N/A
N/A
5
N/A
N/A
N/A
N/A
16
16
16
16
16
16
16
16
BLACK
YELLOW
YELLOW
PINK
PINK
WHITE
WHITE
WHITE
YELLOW
BLACK
BLACK
N/A
N/A
N/A
N/A
N/A
34A
40
SPLICE
40
SPLICE
65
SPLICE
SPLICE
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
AUTOFIL POWER FROM SWITCH TO SOLENOID
TANK TO LP DETECTOR
SPLICE TO FILL
OUT TO LP DETECTOR
SPLICE TO FILL
SPLICE TO FILL
OUT TO LP DETECTOR
OUT TO LP DETECTOR
BOS1
BOS2
BS1
BS1
~
~
14
14
LIGHT BLUE
LIGHT BLUE
~
BLACK
BS2
BS2
~
~
CI RCUI T DESCRI P TI ON (P RI N T)
GROUND MARKER LIGHTS
GROUND TAIL LIGHT HARNESS
GROUND TAIL LIGHT HARNESS
BOSE FRONT RIGHT SPEAKER (+)
BOSE FRONT RIGHT SPEAKER (-)
9/30/2022
G9
G31
G32
39
64
64
N/A
F
G
14
12
12
WHITE
WHITE
WHITE
7 of 7
N/A
N/A
N/A
SPLICE
65
65
N OTES
SEPERATOR TO TAIL LIGHT HARNESS CONNECTION
7 WAY CONNECTION
SEPERATOR TO TAIL LIGHT HARNESS CONNECTION
SPLICE TO TRAILER BRAKE CONTROLLER
TRAILER MARKER CIRCUIT TO 7 WAY CONNECTOR
TRAILER TOW CIRCUIT TO 7 WAY CONNECTOR
GROUND TO 7 WAY CONNECTOR
1:05 PM
1
2
4
3
5
7
6
D
ADD DROPS: 59C (LOC C2), 75 (LOC B4) CHNG TITLE BLOCK
1/15/19
EST
E
ADD FRONT BUNK LTS, ADD BOSE SPEAKER WIRING, CORRECT TYPOS
1/21/19
EST
F
ADD BLU SAT COAX,TREDLE PRES SW 25B
3.10.20
EST
-
F
ADD DROP 14A, MOV DROP 12
3.10.20
EST
-
G
ADD DROP 5C, NEW TV LOCATION
9/1/20
EST
-
A
A
21
3
- 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.
- 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.
- 【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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