Tesla, Inc.
Service Bulletin

Reroute Main Front Body Harness

SB-20-17-004
March 19, 2020
Classification

Section/Group

Mobile Service

Campaign Bulletin

17 - Electrical

Cannot Perform

Model Year

Model

Country/Region

Version

2017 - 2019

Model X

All

All

The model(s) and model year(s) listed are a general approximation of the affected VIN list. Refer to the VIN/Bulletin Tracker or Customer/Vehicle profile to determine
applicability of this bulletin for a particular vehicle.

Campaign Bulletin: This campaign bulletin addresses a known non-safety-related condition and provides recommended technical
diagnosis and repair procedures. Apply this procedure to all vehicles in the affected VIN list.

Condition
On certain Model X vehicles, the main front body harness might contact the RH front upper control arm.

Correction
Inspect the main front body harness near the RH front upper control arm, perform wire repairs (if necessary), and then
reroute the harness.

Correction Description

Correction

Time

SB-20-17-004 Not Applicable

S012017004

0.00

Reroute Main Front Body Harness

S022017004

0.80

Reroute Main Front Body Harness And Repair Wire(s)

S032017004

1.30

Part Number
Parts Required 1046598-00-A
1089890-00-A

Description

Quantity

CLIP,7x12,FIR,OFFSET,TAPE ON
TAPE,PET CLOTH,ACRYLIC,19mm W,150C,BK

1
1

These part numbers were current at the time of publication. Use the revisions listed or later, unless
otherwise specified in the Parts Catalog.

Special Tools 1061177-00-B
(if necessary) 1060908-00-A
1451046-00-A
1061312-00-A
1451045-00-A

Wire Harness Repair Kit
Soldering Iron and Heat Tool Kit
Crimp Tool
Replacement Soldering Tip
Wire Cutting and Stripping Pliers

Procedure
1. Remove the wiper motor assembly (refer to Service Manual procedure 17502502).
2. Move aside the air suspension reservoir, but do not remove it from the vehicle (refer to Service Manual procedure
31102502).

Page 1 of 4

SB-20-17-004
_

3. Inspect the fuse box harness branch at the main front body harness near the RH front upper control arm for
damage (Figure 1):


If there is no sign of the harness contacting the RH front upper control arm, or if the harness is contacting the
RH front upper control arm but the insulation of the wires is still intact, continue to the next step.



If any of the harness wires are damaged or exposed, repair the harness. Refer to SI-17-17-002, “Electrical
Harness Repair” for further instructions on how to repair the wire(s), and then continue to the next step.

Figure 1
4. Release the fir tree clip that attaches the main front body harness to the Front Junction Box (FJB) (Figure 2).

Figure 2

Page 2 of 4

SB-20-17-004
_

5. Install the new cable tie/clip onto the main front body harness 1.2 in (30 mm) right of the fir tree clip (Figure 3)
NOTE: The new cable tie secures the main front body harness further from the RH front upper control arm
without putting tension on the wires.

1.2 in (30 mm)

Figure 3
6. Cut the old fir tree clip from the main front body harness using diagonal cutters, and then discard the fir tree clip
(Figure 4).

Figure 4
7. Install the new clip that attaches the main front body harness to the FJB (Figure 5).

Figure 5
Page 3 of 4

SB-20-17-004
_

8. Relocate the breakout point of the front fusebox harness branch on the main front body harness. Use harness
electrical abrasion tape to secure the front fusebox harness branch onto the main front body harness 1.5 in (40
mm) past the breakout point (Figures 6 and 7); this will add distance between the front fusebox harness and the
front upper control arm.

1.5 in (40 mm)

Figure 6

Figure 7

9. Apply abrasion tape around the harness branch to add protection to the harness (Figures 8 and 9).

Apply harness
abrasion tape here

Figure 8

Figure 9

10. Install the air suspension reservoir (refer to Service Manual procedure 31102502).
11. Install the wiper motor assembly (refer to Service Manual procedure 17502502).

Page 4 of 4

SB-20-17-004
For feedback on the accuracy of this document, email ServiceBulletinFeedback@tesla.com