NTB19-036a

Classification:
Reference:
EC19-004a
Date:
NTB19-036a
February 3, 2021
2017-2018 GT-R; MIL ON WITH DTC P26DE
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.
APPLIED VEHICLES:
2017-2018 GT-R (R35)
IF YOU CONFIRM
The MIL is ON with DTC P26DE (ENGINE SOUND CONTROL “A” CIRCUIT
PERFORMANCE) stored,
And
The cause is determined to be the electric control valve.
ACTION
1.
2.
Replace the electric control valve ONLY.

The electric control valve is now available separately as a service part.

See PARTS INFORMATION on page 4.

DO NOT replace the complete main muffler assembly for this incident, if it
should occur.
Erase the DTC.
IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you
will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it
contains information that is essential to successfully completing this repair.
Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are
properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job
properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO
NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.
1/5
SERVICE PROCEDURE
1.
Remove the main muffler assembly (see Figure 1).

For main muffler assembly removal, refer to the Electronic Service Manual (ESM).
Type “exhaust system” in the Title Search box, and then select the Removal and
Installation (GT-R certified NISSAN dealer) link to the right of TITANIUM
MUFFLER.
Electric
control
valve
Main
muffler
assembly
Figure 1
2.
Electric
control
valve
Remove the four (4) nuts and
bolts, and then remove the electric
control valve.
NOTE:

Two of the nuts and bolts are
hidden in Figure 2.

The electric control valve is
also called “electric control
muffler” in the ESM.
Figure 2
2/5
NTB19-036a
NOTE: The nuts and bolts are secured
by a small weld. Twist off the nuts to
break the welds (see Figure 3).
Weld
Figure 3
3.
Install the new electric control valve to the main muffler assembly with new nuts and
bolts.

Use new gaskets (see PARTS INFORMATION on page 4). Do not reuse the old
gaskets.

For electric control valve installation, refer to the ESM. Type “exhaust system” in
the Title Search box, and then select the Exploded View link to the right of
TITANIUM MUFFLER.
NOTE: The nuts and bolts need only to be torqued. They do not need to be welded after
torquing. Torque values are in the ESM where outlined above.
4.
Reinstall the main muffler assembly.

Use new gaskets (see PARTS INFORMATION on page 4). Do not reuse old
gaskets.

For main muffler assembly installation, refer to the ESM. Type “exhaust system” in
the Title Search box, and then select the Removal and Installation (GT-R certified
NISSAN dealer) link to the right of TITANIUM MUFFLER.
3/5
NTB19-036a
PARTS INFORMATION
DESCRIPTION
PART NUMBER
QUANTITY
VALVE ASSEMBLY-EXHAUST
(electric control valve)
20150-6AV0A
1
GASKET
(both ends of electric control valve)
20692-JF00B
2
BOLT
(both ends of electric control valve)
20606-6AV0A
4
NUT-FIX, EXHAUST TUBE
(both ends of electric control valve)
20602-6AV0A
4
GASKET-EXHAUST
(main muffler to sub muffler)
20692-JF00A
1
NUT-FLANGE, HEX
(main muffler to sub muffler)
08918-3401A
2
GASKET-EXHAUST
(three way catalyst to sub muffler gasket)
20692-24U00
2
NUT-FIX, EXHAUST TUBE
(three way catalyst to sub muffler)
20602-41G0A
4
2
1
3
Figure 4
1. Sub muffler
2. Main muffler assembly
4/5
3. Electric control muffler
NTB19-036a
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
RPL Electric Control Valve
(1)
FD94AA
HC
32
(2) (3)
(1) Reference the Electronic Parts Catalog and use the Electric Control Valve (20150*****) as the Primary Failed Part (PFP).
(2) Reference the current Nissan Warranty Flat Rate Manual and use the indicated Flat
Rate Time (FRT).
(3) FRT allows adequate time to access DTC codes. No other diagnostic procedures
subsequently required. Do NOT claim any Diagnostic Op Codes with this claim.
AMENDMENT HISTORY
PUBLISHED DATE REFERENCE
DESCRIPTION
April 24, 2019
NTB19-036
Original bulletin published
February 3, 2021
NTB19-036a
CLAIMS INFORMATION revised
5/5
NTB19-036a