552034 Service Bulletin/Repair Instructions

32
10
RB1
90
16
40
BED CL LT
10
16
BA1
KC3
FNT CL LT
KC4
SAT1
BTH VENT
FC1
FC2
V2
1. 16 G. GREEN/YELLOW FRONT BATHROOM LIGHTS BTH2
66B 2. 16 G. WHITE GROUND FRONT BATHROOM LIGHTS G21

3. 16 G. BLUE/WHITE HEAT TRIGGER A5X

4. 16 G. BLUE/BLACK HEAT TRIGGER A6X

5. 16 G. GREEN/RED REAR BATHROOM LIGHTS BTH3

6. 16 G. WHITE GROUND REAR BATHROOM LIGHTS G21

7. OPEN

8. 16 G. BLUE/WHITE HEAT TRIGGER A2X

9. 16 G. BLUE/BLACK HEAT TRIGGER A4X
10
HOUSING

TYCO PN 770028-1

TERMINAL

TYCO PN

20G-14G 770250

10G-12G 770246
10
1 2 3

4 5 6

7 8 9
10
C66A

ROOF HARNESS CONNECTION

UMNL II 12-POS CAP (FEMALE)
66

C66

ROOF HARNESS CONNECTION

UMNL II 15-POS CAP (FEMALE)
1

4

7

10

13
2 3

5 6

8 9

11 12

14 15
1. 16 G. BLACK KITCHEN VENT FAN H2F

2. 16 G. WHITE GROUND KITCHEN VENT FAN G30

3. 16 G. GRAY FRONT BATHROOM VENT FAN F3F

4. 16 G. WHITE FRONT BATHROOM VENT GROUND G30

5. OPEN

6. OPEN

7. 16 G. GRAY REAR BATHROOM VENT FAN F6F

8. 16 G. WHITE REAR BATHROOM VENT GROUND G30

9. OPEN

10. OPEN

11. 16 G. BLACK ROOF AIR CONDITIONER H2

12. 16 G. WHITE ROOF AIR CONDITIONER GROUND G10

13. OPEN

14. OPEN

15. OPEN

HOUSING

TYCO PN 770030-1

TERMINAL

TYCO PN

20G-14G 770250

10G-12G 770246
66A
1. 16 G. YELLOW/BROWN LIVING ROOM CEILING LIGHTS

LVR

2. 16 G. WHITE/YELLOW PWM RETURN LIVING ROOM CEILING LIGHTS GLVR

3. 16 G. GRAY/BLACK BEDROOM CEILING LIGHTS BRL

4. 16 G. WHITE/GRAY PWM RETURN BEDROOM CEILING LIGHTS GBRL

5. 16 G. RED/BLACK REAR CEILING LIGHTS HLS

6. 16 G. WHITE/RED GROUND REAR CEILING LIGHTS GHLS

7. 16 G. YEL/BLK (RLS)

8. 16 G. WHT/BLK (GRLS)

9. 16 G. GREEN/BLACK FRONT CEILING LIGHTS FOL

10. 16 G. WHITE/GREEN GROUND FRONT CEILING LIGHTS GFOL

11. 16 G. PINK/BLACK KITCHEN CEILING LIGHTS KCS

12. 16 G. WHITE/PINK GROUND KITCHEN CEILING LIGHTS GKCS

HOUSING

TYCO PN 770029-1

TERMINAL

TYCO PN

20G-14G 770250

10G-12G 770246
1

4

7

10
2 3

5 6

8 9

11 12
NOTES:

1. ALL WIRES TO BE COLOR CODED WITH CIRCUIT DESCRIPTIONS AND

NUMBERS PRINTED EVERY SIX INCHES.

2. HARNESS TO BE WRAPPED IN HIGH TEMPERATURE LOOM, 125 DEG C.

3. ONLY AREAS DEPICTED BY HEAVY LINE WEIGHT WILL BE COVERED

WITH LOOM.

4. ALL SPLICES LOCATED A MINIMUM OF 4 " FROM THE CORRESPONDING

BREAKOUT.
B
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
770030-1

770030-1
770250

770250
66

66
1

2
16

16
BLACK

WHITE
N/A

N/A
V1

V1
221-412

221-412
KITCHEN VENT +

KITCHEN VENT GROUND
KITCHEN VENT FAN

KITCHEN VENT FAN GROUND
H2F

G30
FRONT BATHROOM VENT FAN

FRONT BATHROOM VENT FAN GROUND
F3F

G30
770030-1

770030-1
770250

770250
66

66
3

4
16

16
GRAY

WHITE
N/A

N/A
V2

V2
221-412

221-412
FRONT BATH VENT +

FRONT BATH VENT GROUND
REAR BATHROOM VENT FAN

REAR BATHROOM VENT FAN GROUND
F6F

G30
770030-1

770030-1
770250

770250
66

66
7

8
16

16
GRAY

WHITE
N/A

N/A
V3

V3
221-412

221-412
REAR BATH VENT +

REAR BATH VENT GROUND
ROOF

ROOF

ROOF

ROOF
H2

H2

G10

G10
770030-1

WAGO

770030-1

WAGO
770250

221-412

770250

221-412
66

AC2

66

AC2
11

N/A

12

N/A
16

16

16

16
BLACK

BLACK

WHITE

WHITE
N/A

N/A

N/A

N/A
AC1

SPLICE

AC1

SPLICE
221-412

STRIP 2"

221-412

STRIP 2"
A/C POWER

A/C POWER

A/C GROUND

A/C GROUND
LIVING ROOM CEILING LIGHTS (PWM 2)

LIVING ROOM CEILING LIGHTS (PWM 2)

LIVING ROOM CEILING LIGHTS (PWM 2)

GROUND LIVING ROOM CEILING LIGHTS (PWM 2)

GROUND LIVING ROOM CEILING LIGHTS (PWM 2)

GROUND LIVING ROOM CEILING LIGHTS (PWM 2)
LVR

LVR

LVR

GLVR

GLVR

GLVR
770029-1

WAGO

WAGO

770029-1

WAGO

WAGO
770250

221-412

221-412

770250

221-412

221-412
66A

LC1

LC2

66A

LC1

LC2
1

N/A

N/A

2

N/A

N/A
16

16

16

16

16

16
YELLOW

YELLOW

YELLOW

WHITE

WHITE

WHITE
BROWN

BROWN

BROWN

YELLOW

YELLOW

YELLOW
LC3

SPLICE

SPLICE

LC3

SPLICE

SPLICE
221-412

STRIP 2"

STRIP 2"

221-412

STRIP 2"

STRIP 2"
LIVING ROOM CEILING LIGHTS +

LIVING ROOM CEILING LIGHTS +

LIVING ROOM CEILING LIGHTS +

LIVING ROOM LIGHTS PWM RETURN LIVING ROOM LIGHTS PWM RETURN LIVING ROOM LIGHTS PWM RETURN -
BEDROOM CEILING LIGHTS (PWM 4)

BEDROOM CEILING LIGHTS (PWM 4)

BEDROOM CEILING LIGHTS (PWM 4)

BEDROOM CEILING LIGHTS (PWM 4)

BEDROOM CEILING LIGHTS (PWM 4)

GROUND BEDROOM CEILING LIGHTS

GROUND BEDROOM CEILING LIGHTS

GROUND BEDROOM CEILING LIGHTS

GROUND BEDROOM CEILING LIGHTS

GROUND BEDROOM CEILING LIGHTS
BRL

BRL

BRL

BRL

BRL

GBRL

GBRL

GBRL

GBRL

GBRL
770029-1

WAGO

WAGO

WAGO

WAGO

770029-1

WAGO

WAGO

WAGO

WAGO
770250

221-412

221-412

221-412

221-412

770250

221-412

221-412

221-412

221-412
66A

BR1

BR2

BR3

BR4

66A

BR1

BR2

BR3

BR4
3

N/A

N/A

N/A

N/A

4

N/A

N/A

N/A

N/A
16

16

16

16

16

16

16

16

16

16
GRAY

GRAY

GRAY

GRAY

GRAY

WHITE

WHITE

WHITE

WHITE

WHITE
BLACK

BLACK

BLACK

BLACK

BLACK

GRAY

GRAY

GRAY

GRAY

GRAY
BR5

SPLICE

SPLICE

SPLICE

SPLICE

BR5

SPLICE

SPLICE

SPLICE

SPLICE
221-412

STRIP 2"

STRIP 2"

STRIP 2"

STRIP 2"

221-412

STRIP 2"

STRIP 2"

STRIP 2"

STRIP 2"
REAR CEILIING LIGHTS (PWM 5)

REAR CEILIING LIGHTS (PWM 5)

GROUND REAR CEILING LIGHTS (PWM 5)

GROUND REAR CEILING LIGHTS (PWM 5)
HLS

HLS

GHLS

GHLS
770029-1

WAGO

770029-1

WAGO
770250

221-412

770250

221-412
66A

RC2

66A

RC2
5

N/A

6

N/A
16

16

16

16
RED

RED

WHITE

WHITE
BLACK

BLACK

RED

RED
RC1

SPLICE

RC1

SPLICE

1...14 151617 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

This product presentation was made with AAWP plugin.

Buffer Copy Email Facebook Flipboard Hacker News LinkedIn Messenger Mix Pinterest Print Reddit SMS Telegram Tumblr X VK WhatsApp Line Xing Threads