NHTSA ID Number: 11029067

Manufacturer Communication Number: 552034

TSB/Document Date: 2026-02-27


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Bestseller No. 1
Autel Scanner MaxiCOM MK808S: 2026 Bidirectional Tool as MK808BT Pro MX808S M808Z, Work as MaxiCheck MX900 MK900BT, 28+ Service, Active Test, All System Diagnose, Injector C0ding, FCA Autoauth OS 11
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  • 【AUT0 SCAN & AUT0V1N, 10X FASTER】How much have you spent...
Bestseller No. 2
Autel Scanner MaxiCOM MK900BT, 2026 MK900-BT V2.0 Bidirectional Diagnostic Tool, 8in Up of MK900 MX900 MK808S MK808BT MX808S MK808Z, 3000+ Active Tests, 40+ Service, CAN-FD&DOIP, All System, FCA 11 OS
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  • 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
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  • 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...

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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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221-412
STRIP 2"
221-412
STRIP 2"

REAR CEILING LIGHTS +
REAR CEILING LIGHTS +
REAR LIGHTS PWM RETURN REAR LIGHTS PWM RETURN -

DECORATIVE LIGHTS (PWM 6)

RLS
RLS
GRLS
GRLS

770029-1
~
770029-1
~

770250
~
770250
~

66A
BK2
66A
BK2

7
~
8
~

16
16
16
16

YELLOW
YELLOW
WHITE
WHITE

BLACK
BLACK
BLACK
BLACK

BK1
SPLICE
BK1
SPLICE

221-412
~
221-412
~

DECORATIVE CEILING LIGHTS +

FRONT CEILING LIGHTS (PWM 1)
FRONT CEILING LIGHTS (PWM 1)
GROUND FRONT CEILING LIGHTS (PWM 1)
GROUND FRONT CEILING LIGHTS (PWM 1)

FOL
FOL
GFOL
GFOL

770029-1
WAGO
770029-1
WAGO

770250
221-412
770250
221-412

66A
FC1
66A
FC1

9
N/A
10
N/A

16
16
16
16

GREEN
GREEN
WHITE
WHITE

BLACK
BLACK
GREEN
GREEN

FC2
SPLICE
FC2
SPLICE

221-412
STRIP 2"
221-412
STRIP 2"

FRONT CEILING LIGHTS +
FRONT CEILING LIGHTS +
FRONT LIGHTS PWM RETURN FRONT LIGHTS PWM RETURN -

KITCHEN CEILING LIGHTS (PWM 3)
KITCHEN CEILING LIGHTS (PWM 3)
KITCHEN CEILING LIGHTS (PWM 3)
KITCHEN CEILING LIGHTS (PWM 3)
GROUND KITCHEN CEILING LIGHTS (PWM 3)
GROUND KITCHEN CEILING LIGHTS (PWM 3)

KCS
KCS
KCS
KCS
GKCS
GKCS

770029-1
WAGO
WAGO
WAGO
770029-1
WAGO

770250
221-412
221-412
221-412
770250
221-412

66A
KC1
KC2
KC3
66A
KC1

11
N/A
N/A
N/A
12
N/A

16
16
16
16
16
16

PINK
PINK
PINK
PINK
WHITE
WHITE

BLACK
BLACK
BLACK
BLACK
PINK
PINK

KC4
SPLICE
SPLICE
SPLICE
KC4
SPLICE

221-412
STRIP 2"
STRIP 2"
STRIP 2"
221-412
STRIP 2"

KITCHEN CEILING LIGHTS +
KITCHEN CEILING LIGHTS +
KITCHEN CEILING LIGHTS +
KITCHEN CEILING LIGHTS +
KITCHEN LIGHTS PWM RETURN KITCHEN LIGHTS PWM RETURN -

AIR
AIR
AIR
AIR

CONDITIONER
CONDITIONER
CONDITIONER GROUND
CONDITIONER GROUND

(PWM
(PWM
(PWM
(PWM
(PWM

4)
4)
4)
4)
4)

GROUND DECORATIVE LIGHT (PWM 6)

1/30/2023

1 of 2

BEDROOM CEILING LIGHTS +
BEDROOM CEILING LIGHTS +
BEDROOM CEILING LIGHTS +
BEDROOM CEILING LIGHTS +
BEDROOM CEILING LIGHTS +
BEDROOM LIGHTS PWM RETURN
BEDROOM LIGHTS PWM RETURN
BEDROOM LIGHTS PWM RETURN
BEDROOM LIGHTS PWM RETURN
BEDROOM LIGHTS PWM RETURN

-

DECORATIVE LIGHTS PWM RETURN -

12:57 PM

D02020811 REV_D ROOF HARNESS DLC37RB CUTLIST
CI R CUI T DESCR I PTI ON (PR I N T)

WIRE #

CON N ECTOR
PAR T N UM BER

TER M I N AL

STAR TS

CAVI TY

GAUGE

COLOR

STR I PE

EN DS

TER M I N AL

N OTES

WAGO
WAGO

221-412
221-412

KC2
KC3

N/A
N/A

16
16

WHITE
WHITE

PINK
PINK

SPLICE
SPLICE

STRIP 2"
STRIP 2"

KITCHEN LIGHTS PWM RETURN KITCHEN LIGHTS PWM RETURN -

GROUND KITCHEN CEILING LIGHTS (PWM 3)
GROUND KITCHEN CEILING LIGHTS (PWM 3)

GKCS
GKCS

FRONT BATHROOM LIGHTS
GROUND FRONT BATHROOM LIGHTS

BTH2
G21

770028-1
770028-1

770250
770250

66B
66B

1
2

16
16

GREEN
WHITE

YELLOW
N/A

BA1
BA1

221-412
221-412

FRONT BATHROOM CEILING LIGHTS +
FRONT BATHROOM GROUND -

A5X
A6X

770028-1
770028-1

770250
770250

66B
66B

3
4

16
16

BLUE
BLUE

WHITE
BLACK

AC2
AC2

221-412
221-412

AT TRIGGER FOR AQUAHOT/FURNACE BEDROOM A
AT TRIGGER FOR AQUAHOT/FURNACE BEDROOM A

BTH3
BTH3
BTH3
G21
G21
G21

770028-1
WAGO
WAGO
770028-1
WAGO
WAGO

770250
221-412
221-412
770250
221-412
221-412

66B
RB1
RB2
66B
RB1
RB2

5
N/A
N/A
6
N/A
N/A

16
16
16
16
16
16

GREEN
GREEN
GREEN
WHITE
WHITE
WHITE

RED
RED
RED
N/A
N/A
N/A

RB3
SPLICE
SPLICE
RB3
SPLICE
SPLICE

221-412
STRIP 2"
STRIP 2"
221-412
STRIP 2"
STRIP 2"

REAR BATHROOM CEILING LIGHTS +
REAR BATHROOM CEILING LIGHTS +
REAR BATHROOM CEILING LIGHTS +
REAR BATHROOM GROUND REAR BATHROOM GROUND REAR BATHROOM GROUND -

HEAT TRIGGER FRONT
HEAT TRIGGER FRONT

A2X
A4X

770028-1
770028-1

770250
770250

66B
66B

8
9

16
16

BLUE
BLUE

WHITE
BLACK

AC1
AC1

221-412
221-412

HEAT TRIGGER FOR AQUAHOT/FURNACE FRONT A/
HEAT TRIGGER FOR AQUAHOT/FURNACE FRONT A/

SOLAR PANEL +
SOLAR PANEL -

SP1
SP2

BUTT
BUTT

SP
SP

N/A
N/A

8
8

RED
WHITE

N/A
N/A

SC
SC

SAT1

N/A

RG-6

BLU

N/A

SAT2

HEAT TRIGGER REAR
HEAT TRIGGER REAR
REAR BATHROOM LIGHTS
REAR BATHROOM LIGHTS
REAR BATHROOM LIGHTS
GROUND REAR BATHROOM LIGHTS
GROUND REAR BATHROOM LIGHTS
GROUND REAR BATHROOM LIGHTS

portable satellite dish

1/30/2023

2 of 2

SOLAR PREP PANEL CIRCUIT +
SOLAR PREP PANEL CIRCUIT -

12:57 PM

B

CIR NAME

CIR #

PARK BRAKE SIGNAL

BCR

BLK

18

AQUA HOT POWER

AQP

BLU

BRAKE CNTL PWR

BCP

ORG/BLU

ELECTRIC TOILET PWR

COLOR

CIR NAME

CIR #

2 (#15) , 6B (#1)

SOL TRIGGER

SOL

PPL

14

29 , 33

10

1...1415161718


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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