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Transaction No.:

Technical Service Bulletin

2080777/1

01-26-01 - MIL On DTC, P2B7A, P2B7B, P2B7C or P2B7D Stored in Engine-Motor
Control Module -J623-

Condition
Applicable Vehicles
Model(s)

Year

Eng. Code

Trans Code

VIN Range From

VIN Range To

Jetta

2025 - 2026

DNKA

All

BU_SM000001

BU_TM021871

Taos FWD

2025 - 2026

DYBA

All

CL_SM000001

CL_TM036635

Revision Table
Instance Number Published Date Version Number Reason For Update
2080777/1

01/28/26

01-26-01

Original publication.

One or more of the following fault codes may be stored in the Engine/Motor Control Module -J623- (ECM)
Fault Memory:

DTC

Description

P2B7A EVAP System Pressure Sensor/Switch "C" Circuit
P2B7B EVAP System Pressure Sensor/Switch "C" Circuit Range/Performance
P2B7C EVAP System Pressure Sensor/Switch "C" Circuit Low
P2B7D EVAP System Pressure Sensor/Switch "C" Circuit High

Technical Background
Orifice size inside the Fuel Tank Pressure Sensor (-G400-) plug housing is too small, causing sensor circuit
faults.

Production Solution
Improvements to Fuel Tank Pressure Sensor (-G400-) plug housing to increase orifice size.

Service

1. Access the Fuel Tank Pressure Sensor (-G400-) with plug housing. See Repair Group 20, Fuel Supply,
Sensors, in Elsa.
2. Inspect the Fuel Tank Pressure Sensor with plug housing to verify the current component installed.

Figure 1: Highlights the difference in assembly appearance with the addition of printed font.

Figure 2: Highlights the difference in assembly appearance with the addition of an indent/notch.

3.
•

If the vehicle is equipped with the old Fuel Tank Pressure Sensor assembly shown above, replace the
complete Fuel Tank Pressure Sensor assembly with plug housing.

•

If the vehicle is equipped with the new Fuel Tank Pressure Sensor assembly shown above, further
diagnosis is required. In this case, this TSB no longer applies.

4. Test drive vehicle and re-scan for DTC’s. If faults return, further diagnosis is needed.

Warranty

To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and
Procedures Manual 1)
Model(s)

Year(s)

Eng. Code(s)

Trans.
Code(s)

VIN Range From

VIN Range To

Jetta

2025 - 2026

DNKA

All

BU_SM000001

BU_TM021871

Taos FWD

2025 - 2026

DYBA

All

CL_SM000001

CL_TM036635

SAGA Coding
Claim Type:

Service Number:
2041

Use applicable Claim Type 1)
Damage
Code

HST

Damage Location (Depends on Service
No.)

--

--

0010

Parts Manufacturer

Jetta, Taos

VOA 2)

Labor Operation 3) : NVLD pressure
switch remove and install (JETTA ONLY)

20411999 = 30 TU

Labor Operation 3) : NVLD pressure
switch remove and install (TAOS FWD
ONLY)

20411902 = see Elsa for latest time units

Labor Operation 3) : GFF/Guided
Functions and Battery Charged

01500010 = see Elsa for latest time units

Diagnostic Time 4)
GFF Time expenditure

01500060 = 00 TU

NO

Road Test

01210004 = 10 TU

YES

Technical Diagnosis

01320000 = 00 TU

NO

Claim Comment: Input “As per Technical Bulletin 2080777” in comment section of Warranty Claim.
1)

Vehicle may be outside any Warranty in which case this Technical Bulletin is informational only.

2)

Code per warranty vendor code policy.

3)

Labor Time Units (TUs) are subject to change with ELSA updates.

4)

Documentation required per Warranty Policies and Procedures Manual.

Required Parts and Tools

Part No:

Part Description

Quantity

5WA201700B*

Fuel Tank Pressure Sensor with Plug
Housing

1

*Part numbers are accurate at time of publication. Always refer to ETKA for the latest part information.

Tool Description

Tool No:

Midtronics Battery Tester/Charger

GRX3000VAS
or
MTRMSP0702 battery maintainer/charger

VAS Diagnostic Tool

VAS 6150/X & VAS 6160/X and ODIS Service with
current online updates

Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.
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