Service Bulletin

20-053

April 15, 2021

Version 2

MIL is Flashing with Loss of Power
Supersedes 20-053, dated December 24, 2020, to revise the information highlighted in yellow.
AFFECTED VEHICLES
Year

Model

Trim Level

VIN Range

2019-21

RDX

ALL

ALL

REVISION SUMMARY
Under SOFTWARE INFORMATION, some Program IDs were changed.
SYMPTOM
The MIL is flashing with loss of power.
POSSIBLE CAUSE
Humid air within the intake tract may condense and accumulate excessive moisture during steady driving.
CORRECTIVE ACTION
Update the PGM-FI software and replace the intercooler, the intercooler outlet pipe assembly, and the intercooler outlet
hose.
PARTS INFORMATION
Part Name

Part Number

Quantity

Intercooler Kit

06198-5YF-305

1

Part Name

Part Number

Quantity

Honda TB2720C Water Base Lubricant
(1 bottle will repair 20 vehicles)

08734-0013

1

REQUIRED MATERIALS

CLIENT INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and
training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume this
bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized
Acura automobile dealer.

© 2021 American Honda Motor Co., Inc. – All Rights Reserved

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WARRANTY CLAIM INFORMATION
Operation
Number

Description

Flat Rate
Time

Defect
Code

Symptom
Code

1115A6

Update the PGM-FI
software, and replace the
intercooler.

1.5 hr

B20053A

1115A6A

Update the PGM-FI
software, and replace the
intercooler.

1.9 hr

B20053B

Template ID

Failed Part Number

For multi view camera
adjustment (includes
picture inspection) and
Fog light aim- add
1115A6B

Update the PGM-FI
software, and replace the
intercooler.

1.8 hr

00701

03217

B20053C

19710-6B2-A01

For multi view camera
adjustment only (includes
picture inspection)- add
1115A6C

Update the PGM-FI
software, and replace the
intercooler.

1.6 hr

B20053D

For fog light aim only - add
Skill Level: Repair Technician
SOFTWARE INFORMATION
NOTE:
Unnecessary or incorrect repairs resulting from a failure to update the i-HDS are not covered under warranty.
Before beginning the repair, make sure all diagnostic and reprogramming software are updated as listed.
i-HDS Software Version

1.006.013 or later

HDS Software Version

3.104.014 or later

J2534 Rewrite Software Information
PC Application Version

1.2.1.1

Database Update

21-DEC-2020 or later

NoticeDB Version

21-DEC-2020 or later

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Do only the update listed in this service bulletin.
To update the software you must use the the DST-i interface in conjunction with the J2534 Rewrite PC application on the
i-HDS.
For more information about updating the i-HDS, and vehicle systems, refer to service bulletin 01-026, Updating Control
Units/Modules.
Year/Model

Vehicle System

Program ID (or later)

2019 RDX Advance

37805-5YF-C510

2019 RDX Advance (SH-AWD)

37805-5YF-C710

2019 RDX A Spec, Base, Tech

37805-5YF-A910

2019 RDX A Spec (SH-AWD), Base (SH-AWD), Tech (SH-AWD)

37805-5YF-C810

2020 RDX Advance

37805-5YF-A140

2020 RDX Advance (SH-AWD)
2020 RDX A Spec, Base, Tech

PGM-FI

37805-5YF-A240
37805-5YF-A340

2020 RDX A Spec (SH-AWD), Base (SH-AWD), Tech (SH-AWD)

37805-5YF-A440

2021 RDX Advance

37805-5YF-C120

2021 RDX Advance (SH-AWD)

37805-5YF-C220

2021 RDX A Spec, Base, Tech

37805-5YF-C320

2021 RDX A Spec (SH-AWD), Base (SH-AWD), Tech (SH-AWD)

37805-5YF-C420

UPDATE THE PGM-FI SOFTWARE
You must update the PGM-FI software using the i-HDS J2534 rewrite software with the DST-I for this repair to be
complete. Refer to Service Bulletin 01-026, Updating Control Units and Modules for more information.

Page 3 of 8

REPAIR PROCEDURE
1. Remove the front grille cover.

2. Remove the front bumper to gain access to the intercooler.
•

For some models, disconnect the connectors.

•

Remove the fasteners.

Page 4 of 8

•

Release the clips.

3. Remove the intercooler.

4. Remove the intercooler outlet hose.

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5. Remove the intercooler outlet pipe assembly (to access the top hose clamp you must remove the air cleaner case).

6. Install the new intercooler and new gasket from the kit. Then, reuse the rubber mounts and mounting hardware and
torque the two mount bolts to 9.3 N.m (6.9 lb-ft) and the two bolts connecting the intercooler to the inlet pipe
to 22 N.m (16 lb-ft).

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7. Transfer the mounting hardware. Then, install the intercooler outlet pipe assembly to the vehicle, and torque the two
bolts to 9.3 N·m (6.9 lb-ft).
NOTE:
If necessary, use Honda TB2720C Water Base Lubricant (P/N 08734-0013) when sliding on the hose.
See job aid, Turbocharger Hose and Hose Band Guidelines.

8. Slide the intercooler outlet hose onto the intercooler outlet pipe assembly. Then, install the hose band into position by
lining up the paint mark, and the mark on the intercooler outlet pipe assembly.

Page 7 of 8

9. Tighten the hose bands to the specified condition below.

10. Install the front bumper.
11. Slide intercooler outlet hose B onto the intercooler outlet pipe assembly, then, install the hose band.
12. Install the air cleaner case.
13. If equipped with multi view camera, do the aiming procedure in the service information.
14. If equipped with fog lights, do the adjustment procedure in the service information.

END

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