Car-Net™ Operating Control Unit (OCU/J949) Service Guidelines & General Information (V911405)

WARNING: This page is about the CC Executive, 2.0L Eng VIN N, which is a different variant/trim than selected.

Publication date: 2014-10-20
Reference number: V911405
Supersedes refnos: 2034309, GROUP 91, NO. 13-14, GROUP 91, NO. 13-16, GROUP 91, NO. 14-02, GROUP 91, NO. 14-05, GROUP 91, NO. 14-13

CAR-NET™ OPERATING CONTROL UNIT (OCU/J949) SERVICE GUIDELINES & GENERAL INFORMATION

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 91, NO. 14-13 (2034309), Date of Issue: October 20, 2014

VOLKSWAGEN:	2014 - 2015 Passat, Jetta, Beetle, Tiguan; 2014 - 2015 CC, EOS, Beetle Convertible; 2015 Golf/GTI
GROUP:	91 - Radio, Telephone, Board Computer, Multi-Function Indicator (MFI)

Superceded Bulletin(s): GROUP 91, NO. 14-05, Date of Issue: June 10, 2014

APPLICABLE MODELS AND YEARS

Model(s)	Year	Eng. Code	Trans. Code	VIN Range From	VIN Range To
All Minus "S" trim Passat, Jetta, Beetle, Tiguan	2014 - 2015	All	All	All	All
CC, EOS, Beetle Convertible	2014 - 2015	All	All	All	All
Golf/GTI	2015	All	All	All	All

CONDITION

91 14 13 October 20, 2014 2034309 Supersedes V911405 dated June 10, 2014 to include additional 2015 model year vehicles.

Car-Net™ Operating Control Unit (OCU/J949) Service Guidelines & General Information

OCU/Car-Net modules with software 078, 086, or 102 SHOULD NOT be replaced for the following fault codes:

B201700: Control module locked
B105213: Control unit for cell phone preparation open circuit
U112300: Databus error value received
B1788F0: Control Module Immobilizer deactivated
SW 078 equipped cars will have a brief "Chirp" or "In-Band modem noise" when making a connection. This is a characteristic operation and no repairs should be performed.
Swapping of OCU modules from car-to-car for diagnosis or repair is discouraged as corruption of stored vehicle data and subscription information within OCU is possible.
Current Service Parts should have software level of 078, 086, or 102. Do not install lower software level into vehicle than was removed, i.e. DO NOT replace a SW086 with a SW078.

Tip:

Car-Net equipped vehicles have PR code "EL2" and address word "75" along with 3-button assembly in overhead console.

TECHNICAL BACKGROUND

Software related fault codes

Faults related to the software level 078 or 086 noted above, will not cause any negative operational problems or customer reported symptoms.

B201700 and U112300 faults may erase but will generally return immediately.

B105213 May set if instrument Illumination is turned to 100%

No diagnosis or repair is necessary for any of these fault codes.

Software operating characteristics

SW078 "Chirp"

Software Level 086 introduced.

Faults stored in OCU (Address 75) in both Software levels 078 and 086

Software update under development.

Swapping of OCU

Each OCU is specifically tied to vehicle VIN, Vehicle Build Information and customer. Swapping modules from car-to-car can potentially corrupt data stored within module and/or at Verizon Telematics (VZT).

During PDI, LED does not illuminate

Odometer has 5+ miles.
Confirm "Transport" and "Factory" modes are disabled
No related fault(s)
AT & T 3G (data) coverage necessary for successful Over The Air Registration (OTAR).

Unsuccessful Over The Air Registration (OTAR)

When a vehicle is removed from transport mode the OCU will attempt to perform the OTAR.

If unsuccessful an internal clock inside the OCU must run down before it will attempt to re-register

Time increases exponentially with each failed OTAR attempt (i.e. 1min 2, 4, 8, 16...) up to 24 hours.

Note following if OTAR fails:

Clock will count down regardless of key status (OFF or ON).
Upon switching the ignition key ON after clock has counted down the OCU will re-attempt the OTAR (if clock has counted down).
Switching ignition key ON prior to the clock running down will not add time to the clock.
There is no Measured Value Block to check time remaining on clock.
Ensure location where cars are being removed from transport mode has AT & T 3G coverage.
GPS signal required for successful OTAR.
If car is equipped with navigation ensure navigation map is accurate
If car is not equipped with navigation MVB are available to check GPS signal in the OCU (address 75)
- GPS reception status/number of visible satellites
- GPS reception status/number of tracked satellites

PRODUCTION SOLUTION

Information only.

SERVICE

Information only.

WARRANTY

Information only.

REQUIRED PARTS AND TOOLS

No Special Parts required.

TOOL INFORMATION

Tool Description	Tool No:
Midtronics Battery Tester/Charger	InCharge 940 (INC-940) or GRX3000VAS
VAS Diagnostic Tool	VAS 6150/X & VAS 6160/X with 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.