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NHTSA ID Number: 10144014

Manufacturer Communication Number: 17730-241, Rev.

TSB/Document Date: 2018-08-27


Summary

Operation Name: HendricksoneBay logo Truck Commercial Vehical Systems Document Name: Technical Procedure - AR2 Air Over Walking Beam Suspension, Service Instructions Summary: This document provides preventive maintenance, service, repair and rebuild instructions for Hendrickson AR2 rear air suspension systems.


All equalizing beams are manufactured with the bar pin flats perpendicular to the equalizing
beam’s axis. It is not necessary to adjust the bar pins to the same pinion angle as prior to
disassembly. The rubber in the bushings will gradually allow the bar pins to adapt to the pinion
angles of the drive axles. This is a normal function of the bar pin bushings.

SERVICE HINT

Installing the front bar pin bushings (if equipped) prior to the rear bar pin bushings will ease in the
installation of the equalizing beam.
THE WEIGHT OF THE equalizing beam ASSEMBLY IS APPROXIMATELY 155 POUNDS (70 kg). CARE
SHOULD BE TAKEN AT REMOVAL AND INSTALLATION TO PREVENT PERSONAL INJURY OR DAMAGE TO
COMPONENTS.
4. If the suspension is equipped with:
■■ Bar Pin Style End Connection — Refer to Bar Pin Installation in this section
■■ Adapter Style End Connection — Refer to Hendrickson Publication 17730-190 or con-

tact HendricksoneBay logo Tech Services for more information

5. Mount the equalizing beam into the front drive axle brackets. DO NOT install the alignment
shims at this time.
6. Slide four (4) ¾" bolts through both front axle brackets and the bar pin holes to temporarily
support the equalizing beams.
7. Lift the rear of the beam until the front bar pin flats are parallel to the front drive axle bracket
legs, see Figure 8-12.
Figure 8-12

17730-241

45

Component Replacement

AR2™ 40K • 46K
A bar pin SHIM MUST BE INSTALLED AT EACH BOLT LOCATION. THE SAME PART NUMBER SHIM IN THE
SAME ORIENTATION MUST BE USED AT BOTH BOLT LOCATIONS ON ANY ONE (1) end BUSHING. DO NOT
INSTALL OR STACK MORE THAN ONE (1) SHIM AT EACH BOLT LOCATION. USE GENUINE HENDRICKSON bar
pin SHIMS, DO NOT USE STANDARD WASHERS. FAILURE TO FOLLOW THESE WARNINGS MAY RESULT IN
improper vehicle alignment, FRACTURE OF THE AXLE BRACKET OR BAR PIN WHICH COULD RESULT IN
THE Adverse Vehicle Handling AND POSSIBLE PERSONAL INJURY OR PROPERTY DAMAGE.
THE bar pin ALIGNMENT SHIM (Part No. 50130-000) must be installed with the folded edge
facing away from the bushing, see Figure 8-13. FAILURE TO do so MAY RESULT IN shim damage,
improper alignment, damage or FRACTURE OF THE AXLE BRACKET OR BAR PIN WHICH COULD RESULT
IN THE Adverse Vehicle Handling AND POSSIBLE PERSONAL INJURY OR PROPERTY DAMAGE.
Figure 8-13

NOTE

Hendrickson recommends the use of
Grade 8 bolts and Grade C locknuts. If
flange head bolts and locknuts are not
used then hardened structural washers must be used under bolt heads
and locknuts.
8. Partially install the front inboard
bar pin alignment shim and verify
that the shim is in the same orientation as prior to disassembly, see
Figure 8-10.
9. To complete installation of the
alignment shim, remove the temporary ¾" bolt from the inboard bar pin hole and complete installation of the inboard
alignment shim.
DISCARD USED FASTENERS. ALWAYS USE new FASTENERS TO COMPLETE A REPAIR. FAILURE TO DO SO
COULD RESULT IN FAILURE OF THE PART OR MATING PARTS, Adverse Vehicle Handling, PERSONAL
INJURY, OR PROPERTY DAMAGE.

10. Install the new 1" inboard bar pin fasteners. DO NOT tighten at this time.
11. Repeat Steps 8 through 10 for the front outboard alignment shim.
12. Chock the rear drive axle wheels to prevent movement while installing the rear bar pin into
the axle bracket.
13. Support the current axle position of the rear axle pinion with a jack to assist with the installation of the rear bar pin.
NOTE

Prior to disassembly of the longitudinal torque rod, note the quantity and orientation of the longitudinal torque rod shims. It is required that the longitudinal torque rod shims are installed in the same
orientation and location as removed to preserve the existing pinion angle.
14. Disconnect the rear longitudinal torque rod from the rear axle bracket, see vehicle manufacturer’s specifications.
15. Release the rear parking brakes, this will allow the rear axle to rotate without rotating the tires.
16. Lower the rear drive pinion until the rear drive axle bracket legs are parallel to the rear bar pin
flats, see Figure 8-12.
17. Mount the equalizing beam into the rear drive axle brackets. DO NOT install the bar pin
alignment shims at this time.
18. Slide a ¾" bolt through all rear axle bracket and the bar pin holes to temporarily support
the beams.

Component Replacement

46

17730-241

AR2™ 40K • 46K
19. Partially install the rear inboard bar pin alignment shim and verify that the shim is in the
same orientation as prior to disassembly, see Figure 8-10.
20. To complete installation of the alignment shim, remove the temporary ¾" bolt from the
inboard bar pin hole and complete installation of the inboard alignment shim.
21. Install new 1" inboard bar pin fasteners. DO NOT tighten at this time.
22. Repeat steps 19 through 21 for the rear outboard bar pin alignment shim.
NOTE

Prior to assembly of the longitudinal torque rod, note the quantity and orientation of the longitudinal torque rod shims. It is required that the longitudinal torque rod shims are installed in the same
orientation and location as removed to preserve the existing alignment.
23. Install the longitudinal torque rod and any longitudinal torque rod shims in the same orientation
as prior to disassembly. Tighten the fasteners to the vehicle manufacturer’s specifications.
24. Re-apply rear parking brake.

NOTE

Prior to assembly of the rear bar pin end bushing fasteners, ensure that all the bar pin shims are
installed in the same orientation as prior to disassembly.
DISCARD USED FASTENERS. ALWAYS USE new FASTENERS TO COMPLETE A REPAIR. FAILURE TO DO SO
COULD RESULT IN FAILURE OF THE PART OR MATING PARTS, Adverse Vehicle Handling, PERSONAL
INJURY, OR PROPERTY DAMAGE.

25. Tighten the bar pin end fasteners to:
■■ At the locknuts tighten to

525 ± 75 foot pounds torque

■■ At the bolt head tighten to

575 ± 75 foot pounds torque

Figure 8-14

THE TRAILING ARM Assemblies are ATTACHED TO THE CENTER BUSHINGS OF EACH EQUALIZING BEAM
WITH TWO (2) SADDLE CAPS. EACH SADDLE CAP USES TWO (2) studs TO CLAMP THE CENTER BUSHING
INNER METAL TO THE SADDLE. THE SADDLE CAPS MUST BE INSTALLED and tighten SO THAT THERE IS
AN EVEN GAP BETWEEN THE SADDLE CAPS AND THE BASE OF THE TRAILING ARM ASSEMBLY AS SHOWN
IN FIGURE 8-14. IF THEY ARE NOT INSTALLED properly,THE TRAILING ARM Assemblies COULD BECOME
DEFORMED, RESULTING IN BENT BOLTS OR assembly DAMAGED.

NOTE

HendricksoneBay logo recommends the use of Grade 8 bolts and Grade C locknuts. If flange head bolts and locknuts are not used then hardened structural washers must be used under bolt heads and locknuts.
26. Remove the frame supports and lower the frame of the vehicle being careful to engage the
trailing arm assembly on the equalizing beam’s center bushings.
27. Center the trailing arm assembly on the equalizing beam center bushing, see Figure 8-15.

17730-241

47

Component Replacement

AR2™ 40K • 46K
Figure 8-15

28. Apply Loctite 262 ONLY on the
upper half area of the saddle
cap stud that inserts into the trailing arm.
29. Tighten the saddle cap fasteners
evenly in 50 foot pounds increments in the proper sequence for
uniform bolt tension as shown in
Figure 8‑16 until the final torque
value of 250 ± 25 foot pounds
torque is achieved. D O N OT
exceed specified torque on saddle
cap fasteners. Maintain an even
gap between the trailing arm assembly and saddle cap, see Figure 8-14. Figure 8-16
NOTE

Tightening the saddle cap stud fasteners properly will help prevent wear
of mating components, beam center bushing, trailing arm assembly, and
saddle cap.
30. Install the tires.
31. Remove the supports from the drive axles and lower the vehicle onto the
ground.
32. Remove the wheel chocks.

Center Bushing
You will need
■■ A shop press with a capacity of at least 100 tons
■■ Center bushing tool — (HendricksoneBay logo Part No. 66086-100) – Refer to Special Tools section of

this publication for the tools to remove and install the rubber center bushings

■■ Receiving tool — The receiving tool is a shop made tool which completely supports the beam

hub being serviced and is tall enough to receive the bushing as it is being pressed in or out,
refer to the Special Tools section of this publication

DISCARD USED FASTENERS. ALWAYS USE NEW FASTENERS TO COMPLETE A REPAIR. FAILURE TO DO SO
COULD RESULT IN FAILURE OF THE PART OR MATING PARTS, Adverse Vehicle Handling, PERSONAL
INJURY, OR PROPERTY DAMAGE.

DISASSEMBLY
NOTE

Whenever an equalizing beam is removed for repair, or inspection of the equalizing beam end
connection reveals movement, measure the distance between the axle bracket legs for correct
width. Refer to Axle Bracket in Preventive Maintenance section of this publication for measurement location and proper dimensions. An axle bracket outside of the proper dimensions must
be repaired or replaced. Consult the vehicle manufacturer for inspection, component repair and
replacement instructions.
1. Remove the equalizing beam assembly from the vehicle. Follow the equalizing beam disassembly procedure in this section.
Do not use a cutting torch to remove any fasteners or bushings. The use of heat
on suspension components will adversely affect the strength of these parts. A
component damaged in this manner can result in the Adverse Vehicle Handling and
possible personal injury or property damage.

Component Replacement

48

17730-241

AR2™ 40K • 46K
2. Place the equalizing beam assembly in a shop press with the center hub firmly supported on
the press bed.
Note

Before attempting to remove the beam center bushings, inspect the inside face of each equalizing
beam center hub. If the outer metal of the center bushing is worn, the edge may have mushroomed over the face of the beam hub. This material must be removed with a chisel or disc sander
before tooling adapters can be positioned for bushing removal.
3. Install the center bushing removal tool centered on the center bushing.
4. Push directly on center bushing removal tool until the center bushing is pressed out of the
equalizing beam bore.

INSPECTION
After removing the center bushings, thoroughly inspect the beam center bushing bore. If damaged
from center bushing removal, replace with a new equalizing beam. DO NOT re-bush or otherwise
use an equalizing beam that has been damaged.
Failure to replace an equalizing beam that has been damaged from bushing removal
can result in the failure of that beam, leading to Adverse Vehicle Handling and possible
personal injury or property damage.
Figure 8-17

1. M e a s u r e t h e i n s i d e d i a m eter of the equalizing beam’s
center bushing bore and the center bushing’s outside diameter.
The specification of the equalizing
beam’s center bore on a new AR2
equalizing beam:
■■ Inside Diameter —

4.740" ± 0.004"
(120.39 mm ± 0.10 mm)

■■ Each measurement is to be

taken as the average of any
two readings at 90 degrees in the same plane, see Figure 8-17. If component is not within
the specified range, replacement is required

ASSEMBLY
When installing rubber center bushings the following steps will minimize the chance of damaging
a new bushing:
1. Clean the bores of the equalizing beams with emery cloth, removing any nicks or metal
buildup from bushing removal.
2. The equalizing beam bore may have a more substantial lead in chamfer at one end of the
bore than the other. Take advantage of the larger chamfer by pressing in the new center bushing from this end.
3. Place the equalizing beam in a shop press on the receiving tool.
4. Support the beam squarely at the bore area to avoid distortion of the beam bore or bending
of the beam.
5. Lubricate the outer diameter (O.D.) of the center bushing and the inner diameter (I.D.) of the
beam bore with NLGI#2 – EP (Extreme Pressure) lithium base grease.
6. Ensure the bushing is square to the equalizing beam bore.

17730-241

49

Component Replacement

AR2™ 40K • 46K
Figure 8-18

7. Install the center bushing
installation tool and press
in the new center bushing until the outer metal
sleeve is centered in the
equalizing beam’s bore,
see Figure 8-18.
8. Install the equalizing beam
onto the vehicle, refer to the
Equalizing Beam Assembly
procedure in this section.

Bar Pin End Bushings
When removing and installing bushings in the equalizing beams, follow the procedures
outlined in this publication. Do not use a cutting torch to remove the bushing outer
metals pressed in the equalizing beam bores. Welding, torching or attaching material
to the equalizing beam must never be performed. The use of heat CAN adversely affect
the strength of the equalizing beams and can cause damage to the Equalizing Beam
assembly, Adverse Vehicle Handling and possible personal injury or property damage.

NOTE

Hendrickson bar pin service kits containing alignment shims, (Kit No. 34013-088L) or (Rotating
Bar Pin Bushing Kit No. 34013‑188) contain all the components required for one (1) equalizing
beam end, see Parts List section of this publication.

You will need
■■ A shop press with a capacity of at least 100 tons
■■ Bar pin style tool — Refer to Special Tools section of this publication
■■ Installation tool Part No. 66086-103
■■ Removal tools Part No. 66086-104 and 66086-105
■■ Shop Made Receiving tool — Refer to the Special Tools section of this publication

Note

The receiving tool completely supports the equalizing beam hub being serviced and is tall enough
to receive the bushing as it is being pressed in or out.

Removal
NOTE

Whenever an equalizing beam is removed for repair, or inspection of the equalizing beam end
connection reveals movement, measure the distance between the axle bracket legs for correct
width. Refer to Axle Bracket in Preventive Maintenance section of this publication for measurement location and proper dimensions. An axle bracket outside of the proper dimensions must
be repaired or replaced. Consult the vehicle manufacturer for inspection, component repair and
replacement instructions.
1. Remove equalizing beam assembly from vehicle as detailed in the Equalizing Beam
Disassembly instructions in this section.
2. Place the equalizing beam in the shop press with the beam end hub squarely supported on
the press bed.

NOTE

If replacing the bar pin with a rotating bar pin end bushing, it is not necessary to mark the orientation of the bar pin flats.
3. Prior to removal, mark the orientation of the bar pin flats, see Figure 8-19. Mark orientation the
equalizing beam with a paint stick.

Component Replacement

50

17730-241

AR2™ 40K • 46K
Figure 8-19

Figure 8-20

4. Press on the end bushing
inner metal, see Figure
8‑20, of the end bushing until the inner metal
is flush with the top of
the beam end hub. This
will dislodge the confinement washer and move
the bushing rubber away
from the outer metal of the
bushing so the removal
tool can be installed.
5. Center the bushing push out tool directly on the bushing’s outer metal and press the bushing
out of the equalizing beam end hub.
6. After removing the bar pin end bushings, thoroughly inspect each end hub bore.
Figure 8-21

INSPECTION
After removing the bar pin end bushings, thoroughly
inspect the beam bores. If the equalizing beam is damaged from end bushing removal, replacement of the
equalizing beam is required, replace with a new equalizing beam. DO NOT re-bush or otherwise use an equalizing
beam that has been damaged.
Failure to replace an equalizing beam that has been
damaged from bushing removal can result in the
failure of that beam, leading to Adverse Vehicle Handling and possible personal injury
or property damage.

When installing bar pin end bushings the following steps will minimize the chance of damaging
a new bushing:
1. Clean the end hub bores with emery cloth or hone, removing any nicks or metal buildup from
bushing removal.
2. Measure the equalizing beam end hub bore inner diameter and the bushing outer diameter.
The HendricksoneBay logo specification for the equalizing beam end hub bore diameter of the equalizing beam is 4.365" ± .004", (110.87 mm ± .10 mm) see Figure 8-21. If components are not
within the specified range, replacement is required.
Always use the bushing’s outer metal for pressing operations, unless otherwise
instructed. Pressing on the bushings inner metal may damage the bushing requiring
bushing replacement.

Installation
1. Place the equalizing beam in a shop press with the end hub, see Figure 8-22, squarely supported on the press bed or receiving tool, see Special Tools section of this publication.
Service hint

17730-241

The end hub bore may have a more substantial leading chamfer at one end of the bore than the
other. Take advantage of the larger chamfer by pressing in the new bushing from this end.

51

Component Replacement

AR2™ 40K • 46K
Figure 8-22

2. Install Hendrickson Part No. 66086-103 (OTC 1757) end bushing installation tool (refer to
Special Tools section of this publication) on the new end bushing as shown in Figure 8-22.
Tighten the through bolt until the two (2) halves of the tool touch. The installation tool compresses the rubber between the inner and outer metal of the bushing to allow press force to
be transmitted only to the outer metal of the bushing.
3. Lubricate the equalizing beam end hub inside diameter AND the bar pin end bushing’s
outer metal with a heavy layer of NLGI #2 – EP (Extreme Pressure) lithium base grease, see
Figure 8-22.
4. Position the equalizing beam end bushing and installation tool on the end hub. Verify the bolt
holes in the end bushing are in line with the beam axis, see Figure 8-23.
NOTE

The end bushing must be square with the equalizing beam end hub before pressing the end bushing into the equalizing beam. End bushings pressed in at an angle will damage the end bushing
and the equalizing beam.
Figure 8-23

5. Verify the end bushing’s outer metal is square with the end hub. Damage to the equalizing
beam and the end bushing will result if the bushings are pressed in at an angle.
CARE MUST BE TAKEN DURING THE INSTALLATION OF THE BUSHING. DO NOT PUSH ON THE INNER
METAL OF THE BUSHING, DOING SO WILL CAUSE DAMAGE TO THE BUSHING AND VOID WARRANTY.
Figure 8-24

6. Install the end bushing into the end hub by
pressing on the installation tool until the
installation tool contacts the end hub. This
will center the bushing in the end hub, see
Figure 8-24.
7. Install the equalizing beam onto vehicle,
refer to the Equalizing Beam Assembly procedure in this section.

Component Replacement

52

17730-241

AR2™ 40K • 46K
Adapter Style End Bushing
You will need

Figure 8-25

■■ A shop press with a capacity of at least

100 tons

■■ Air hammer / chisel / Bent chisel, see

Figure 8-25

■■ Hendrickson Part No. 66086-102 (OTC Part

No. 1764), see Special Tools section of this
publication

Removal
The adapter removal process can cause damage. Reuse of damaged or worn adapters
could result in a component failure leading to Adverse Vehicle Handling and possible
personal injury.

SERVICE HINT

It is recommended that a penetrating oil be applied to all beam end connections prior to removal
to aide in disassembly.
1. Chock the wheels of the steer axle.
2. Raise and support the drive axles with safety stands.
3. Remove the tires.
Prior to removing both equalizing beams, support the pinion of each drive axle. Failure
to do so can result in personal injury or allow the axles to shift making reassembly
more difficult.

4. Support the pinion angle of the drive axles to prevent axle movement during service.
5. Remove and discard the saddle cap fasteners from both inboard and outboard sides of the
equalizing beam.
6. Remove the saddle caps, refer to Saddle Cap Assembly in this section.
Figure 26

7. Raise the vehicle’s frame just enough to create a ½" (13 mm) gap between the saddles and
the center bushings. Support the vehicle’s frame at this height.
THE WEIGHT OF THE equalizing beam ASSEMBLY IS APPROXIMATELY 155 POUNDS. Prior to
removing the beam end fasteners from the equalizing beam, support the end of the
equalizing beam to prevent from dropping. CARE SHOULD BE TAKEN AT REMOVAL AND
INSTALLATION TO PREVENT PERSONAL INJURY OR DAMAGE TO COMPONENTS.

8. Support both equalizing beams with floor jacks.
9. Remove the beam end bolt or shaft (as equipped), see Figure 8-26.
Note

17730-241

Due to the process necessary to remove the beam end adapters, the adapter can be subjected to
damage. DO NOT reuse worn or damaged adapters.
53

Component Replacement

AR2™ 40K • 46K
Figure 8-27

Figure 28

10. The beam end adapters have two chisel recesses located in their flanges as shown in
Figure 8-28.
11. Locate the recess for the chisel, rotate the adapter if necessary. Place the air hammer / chisel
in the recess to rotate the adapter collar.
12. If the beam end adapter does not turn, use a hammer to rap the outside of the axle bracket
legs around the adapter area and repeat air hammer chisel procedure until removed.
13. Remove the beam end adapter from the other equalizing beam ends.
14. Slowly lower the floor jacks and remove / pry the equalizing beams from the axle brackets.
15. Remove the end bushing adapter tube (if equipped), see Figure 8-27.
16. Remove the floor jacks from under the equalizing beams.
17. Position the equalizing beam in the shop press and align the end bushing removal /
replacement adapter tool with the tapered end down on top of the rubber end bushing,
see Figure 8-29.
Figure 8-29

Check to ensure proper alignment of tooling
adapters with equalizing beam components
before applying full hydraulic pressure with End Bushing
a shop press.
Replacement
Adapter
18. A p p ly hyd rau lic fo rc e a n d re m ove th e
old bushing.
End

19. Inspect the axle bracket legs per the Beam End
Axle Brackets, Physical Inspection for Adapter
Style bushings in the Preventive Maintenance
section of this publication.

Installation
1. Clean the equalizing beam bushing bore with a
cylinder ball hone or emery paper of any debris.

Tapered
End Down

Bushing

Equalizing Beam

Receiver

2. Lubricate the equalizing beam bore and the equalizing beam center bushing outer metal
sleeve with an NLGI#2 – EP (Extreme Pressure) grease, see Figure 8-30.
3. Position the end bushing removal / replacement adapter with the tapered end up onto the
clamp, see Figure 8-31.
4. Use a wrench to tighten the installing clamp tool on the rubber bushing and the end bushing
replacement adapter as shown in Figure 8-31.

Component Replacement

54

17730-241

AR2™ 40K • 46K
Figure 8-30

Figure 8-31
Tapered
End Up

Adapter
Tool

Clamp
Adapter Style
Rubber End
Bushing

Check to ensure proper alignment of tooling
adapters with equalizing beam components
before applying full hydraulic pressure with

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TSB/Document ID: 17730-241, Rev.

Replacement Service Bulletin Number:

MFR Communication Date: 2018-07-01

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: EQUIPMENT

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  • 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
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  • OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
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2026 BOSSCOMM IF745 Scanner Diagnostic Tool, Check Engine Code Reader with 6 Resets, ABS Bleeder/Oil/EPB/SAS/Throttle/Battery, Scanner Diagnostic Tool for Vehicles, Lifetime Free Update, Auto VIN
  • 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
  • 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
  • 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
  • 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.​
  • 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.

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