01-21-07 - Update Programming Engine/Motor Control Module -J623-, Various Fault Codes Stored (GROUP 01, NO. 21-07)

Publication date: 2021-03-03
Reference number: GROUP 01, NO. 21-07
Supersedes refnos: 2062520, 2062520/1

01-21-07 - UPDATE PROGRAMMING ENGINE/MOTOR CONTROL MODULE -J623-, VARIOUS FAULT CODES STORED

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 01, NO. 21-07 (2062520/1), Date of Issue: March 03, 2021

VOLKSWAGEN:	2020 Golf
GROUP:	01 - On-Board Diagnostic

CONDITION

APPLICABLE VEHICLES

Model(s)	Year	Eng. Code	Trans. Code	VIN Range From	VIN Range To
Golf	2020	1.4T (DGXA)	All	All	All

REVISION TABLE

Instance Number	Published Date	Version Number	Reason For Update
2062520/1	3/3/2021	01-21-07	Original publication.

Tip: This software update also includes modification for: P0133, P2279, P0135, P060C, P0410, P0491 and P268A DTCs.

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

DTC DESCRIPTION

DTC	Description
P0133	O2 Sensor Circ., Bank1-Sensor1 Slow Response
P2279	Intake Air System Leak
P0135	O2 Sensor Heater Circ., Bank1-Sensor1 Malfunction
P060C	Internal Control Module Main Processor Performance (Symptom Code 30923 ONLY)
P0410	Sec.Air Inj.Sys. Malfunction
P0491	Secondary Air Injection System (Bank 1) insufficient flow
P268A	Fuel Injector Calibration Not Learned/Programmed

NOTE: DO NOT diagnose or replace components due to P0133, P2279, P0135, P060C, P0410, P0491 and P268A faults before performing the update function as explained in this bulletin.

TECHNICAL BACKGROUND

Updated programming of the Engine/Motor Control Module -J623- software is based on most recent engineering experiences and makes this knowledge available for the monitoring strategies.

PRODUCTION SOLUTION

Improved ECM software.

SERVICE

Update-Programming Procedure:

Critical Warning : The Midtronics battery charger must be connected to the vehicle battery for the duration of the programming, to ensure the battery state of charge remains above 12.5 volts during the update process. If the battery drops below 12.5 volts, the programming could fail which may result in damage to the control module. Control modules damaged by inadequate voltage will not be covered under the warranty policy. The technician should verify the vehicle voltage prior to starting the update process, and should monitor the voltage for the duration of the update.

WARNING: Radiator Fan(s) may cycle ON high speed during the Update Process! There is a risk that personal injury may result if contact is made with spinning fan blades.
Keep hands and all objects away from Radiator Fan(s) during Update Process!

NOTE: Prior to launching the ODIS Service diagnostic applications and starting control module update process, confirm tester screen saver and power settings in accordance with Diagnostic Device Hardware & Windows® - VHW-20-02 Change Power Options After Windows®10 Upgrade. Failure to do so may result in the tester entering power save mode during data transfer, and subsequent control module failure.
When using a VAS 6150/X or 6160/X tester in conjunction with a VAS 6154 wireless transmitter head for a flash procedure, connect a USB cable between the transmitter head and the tester. Failure to do so may lead to errors during the flash procedure.
VAS tools must only be used with their power adapters plugged in. Under no circumstances should they be used on battery power alone during the programming procedure.

Tip: To Update-Programming using Software Version Management (SVM), review and follow instructions in Technical Bulletin Instance 2014603 "Software Version Management".

The SVM process must be completed in its entirety so the database receives the update confirmation response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim or action is carried out that is not explicitly stated in the Technical Bulletin.

Update the Engine/Motor Control Module -J623- using the SVM Unit code as listed in the table below:

SOFTWARE INFORMATION

Model	Engine	Old Software Part No.	Old Software Version	New Software Part No.	New Software Version (or higher)	SVM Unit Code
Golf	1.4T (DGXA)	04E 906 024AD	Z843 7256 9508 9939	04E 906 024AD	9970	45D3
Golf	1.4T (DGXA)	04E 906 024AC	Z843 7255 9507 9938	04E 906 024AC	9970	45D3

The procedure can be found in GFF under Functions/Component Selection, Software Version Management, Adapting Software.

Tip: The procedure can be found in GFF under Functions/Component Selection, Software Version Management, Adapting Software.

Ensure attached ECM/TCM Tuning Form has been completed and signed by customer as required in SVM Technical Bulletin Instance 2014603.

WARRANTY

WARRANTY INFORMATION

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

Golf

2020

1.4T
(DGXA)

All

SAGA Coding

Claim Type:

Use applicable Claim Type ⁽¹⁾

Service Number:

Damage Code

HST

Damage Location (Depends on Service No.)

2470

0039

Use applicable when indicated in Elsa (L/R)

Parts Manufacturer

Golf

3ME⁽²⁾

Labor Operation ⁽³⁾: Charge Battery

27068950 = 10 TU

Labor Operation ⁽³⁾: Update Programming ECM Control Module

24705599 = 50 TU

Causal Part:

27068950

Diagnostic Time ⁽⁴⁾

GFF Time expenditure

01500000 = Actual GFF print out

Road Test

01210002 = 00 TU
01210004 = 10 TU

YES

Technical Diagnosis

01320000 = 00 TU max.

Claim Comment: Input "As per Technical Bulletin 2062520" 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

TOOLS 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.

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.