BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
TECHNICAL SERVICE BULLETIN
Reference Number(s): GROUP 27, NO. 11-05 (2016076), Date of Issue: December 15, 2011
Superceded Bulletin(s): GROUP 27, NO. 08-04, Date of Issue: August 28, 2008
CONDITION
27 11 05 December 15, 2011 2016076 , Supersedes Technical Bulletin V270804 dated August
28, 2008 to include additional models and model year applicability.
Battery, Discharged, Diagnosis for Excessive Static Current Draw
TECHNICAL BACKGROUND
One or more of the following symptoms is possible.
Discharged battery.
Engine does not start because of low battery voltage.
Voltage display in the combination instrument displays too low.
"Low battery" fault codes in various control modules.
PRODUCTION SOLUTION
Battery/Current draw procedure introduced in VAS 5051A/B scan tool with the release of
software version 11.78.00.
SERVICE
Tip:
Refer to ElsaWeb for other Technical Bulletins that apply to specific vehicles with
discharged batteries. These Technical Bulletins provide information about intermittent
faults and correct battery testing /charging procedures.
VOLKSWAGEN: All Models (except Routan) 1990-2012
GROUP: 27 - Engine Electrical
Model(s) Year
Eng.
Code
Trans.
Code
VIN Range
From
VIN Range
To
All Models (except
Routan)
1990-
2012
All All All All
NOTE: Perform ALL STEPS , to systematically test for faults and to avoid repeat
repairs.
NOTE: The power supply to vehicle must not be cut off. DO NOT perform terminal
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:347 Page 1 © 2011 Mitchell Repair Information Company, LLC.
Check the fault memory.
Compare control units on the fault memory print-out with vehicle equipment (PR
numbers). Are all necessary control units listed on the print-out? Any control
units not listed may be faulty and could be indications for the further fault
finding.
Check which non-genuine parts are installed, e.g. tow bar, animal protection,
radio, DVD, etc. If an increased closed-circuit current is found, check these
components first.
STEP 1: VERIFY BATTERY CONDITION
1. Connect Midtronics INC-940 to battery.
2. Check and/or charge battery based on applicable Technical Bulletin.
3. If INC-940 test fails battery, replace battery before continuing.
STEP 2: VERIFY SLEEP STATE CURRENT
1. Connect 50 amp current clamp to VAS 5051A/B.
2. Calibrate the current clamp.
3. Connect current clamp to negative battery cable with arrow pointing away from
battery.
Tip:
Current flows out of the battery to the chassis of the vehicle.
4. Close all doors, trunk, or hood latch so vehicle control units detect all doors
closed.
5. Arm vehicle anti-theft system with remote.
Tip:
If vehicle has easy entry handles then it is necessary to keep clear of all
handles to avoid bus communication/wakeup message.
On vehicles equipped with air suspension, after engine is turned off, the
system will stay in standby for up to five minutes.
6. Observe sleep state current draw after vehicle is left untouched for TWO HOURS.
7. If after two hours the vehicle exceeds maximum sleep state current draw, proceed
to Step 3: Consuming Circuit Isolation. If vehicle does not exceed maximum sleep
state current draw, perform a long term (overnight) measurement test. Record the
30 reset. DO NOT remove or disconnect battery, battery cables or fuses.
Vehicle: Phaeton All other models
Nominal sleep current: 50 mA 40 mA
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 2 © 2011 Mitchell Repair Information Company, LLC.
long term measurement using MIN/MAX setting of scan tool.
Excessive current = Measured current > nominal sleep current
Tip:
Periodic spikes in current draw are normal.
STEP 3: CONSUMING CIRCUIT ISOLATION
Tip:
Due to the state of the CAN Bus communications in the vehicle, it is no longer
acceptable to pull each individual fuse one at a time to try and identify which circuit
is consuming current. Removal/reinsertion of a fuse while vehicle is in a sleep state
may wake the bus of the vehicle, and invalidate the test. Identifying "consuming"
circuits must be done by measuring a voltage drop across fuse and aligning with the
value in matrix located at end of this document.
STARTING AT INTERIOR FUSE BOXES, PERFORM THE FOLLOWING TASKS
Tip:
Use VAS 5051A/B multimeter function, Fluke 83 multimeter, or equivalent.
Use "mV" scale on meter.
Measure voltage drop across fuse by placing the positive lead on one side of the
fuse and negative lead on other side.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 3 © 2011 Mitchell Repair Information Company, LLC.
Take absolute value of reading of voltage drop (ignore negative signs) and then
reference voltage drop chart to determine how much current the circuit is
currently consuming. See Identifying Current Consumption with Matrix attachment.
Check all fuses until fuse with approximate excessive current draw is identified.
Tip:
Excessive current = Measured current > nominal sleep current
IDENTIFICATION OF COMPONENT
1. Once fused circuit is identified, use service repair and wiring diagram
information in ElsaWeb to identify all components on circuit.
2. Disconnect components from the circuit one by one and allow sleep current to
stabilize after each elimination.
3. Measure vehicle current consumption and voltage drop across fuse once again. If
within normal range, as specified in the table (see Current Consumption Matrix
attachment), the component with excessive consumption is identified.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 4 © 2011 Mitchell Repair Information Company, LLC.
4. Repeat steps above until component is identified causing excessive current draw.
WARRANTY
Information only.
REQUIRED PARTS AND TOOLS
No Special Parts required.
No Special Tools required.
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.
ATTACHMENT
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 5 © 2011 Mitchell Repair Information Company, LLC.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 6 © 2011 Mitchell Repair Information Company, LLC.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 7 © 2011 Mitchell Repair Information Company, LLC.
TECHNICAL SERVICE BULLETIN
Reference Number(s): GROUP 27, NO. 11-05 (2016076), Date of Issue: December 15, 2011
Superceded Bulletin(s): GROUP 27, NO. 08-04, Date of Issue: August 28, 2008
CONDITION
27 11 05 December 15, 2011 2016076 , Supersedes Technical Bulletin V270804 dated August
28, 2008 to include additional models and model year applicability.
Battery, Discharged, Diagnosis for Excessive Static Current Draw
TECHNICAL BACKGROUND
One or more of the following symptoms is possible.
Discharged battery.
Engine does not start because of low battery voltage.
Voltage display in the combination instrument displays too low.
"Low battery" fault codes in various control modules.
PRODUCTION SOLUTION
Battery/Current draw procedure introduced in VAS 5051A/B scan tool with the release of
software version 11.78.00.
SERVICE
Tip:
Refer to ElsaWeb for other Technical Bulletins that apply to specific vehicles with
discharged batteries. These Technical Bulletins provide information about intermittent
faults and correct battery testing /charging procedures.
VOLKSWAGEN: All Models (except Routan) 1990-2012
GROUP: 27 - Engine Electrical
Model(s) Year
Eng.
Code
Trans.
Code
VIN Range
From
VIN Range
To
All Models (except
Routan)
1990-
2012
All All All All
NOTE: Perform ALL STEPS , to systematically test for faults and to avoid repeat
repairs.
NOTE: The power supply to vehicle must not be cut off. DO NOT perform terminal
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:347 Page 1 © 2011 Mitchell Repair Information Company, LLC.
Check the fault memory.
Compare control units on the fault memory print-out with vehicle equipment (PR
numbers). Are all necessary control units listed on the print-out? Any control
units not listed may be faulty and could be indications for the further fault
finding.
Check which non-genuine parts are installed, e.g. tow bar, animal protection,
radio, DVD, etc. If an increased closed-circuit current is found, check these
components first.
STEP 1: VERIFY BATTERY CONDITION
1. Connect Midtronics INC-940 to battery.
2. Check and/or charge battery based on applicable Technical Bulletin.
3. If INC-940 test fails battery, replace battery before continuing.
STEP 2: VERIFY SLEEP STATE CURRENT
1. Connect 50 amp current clamp to VAS 5051A/B.
2. Calibrate the current clamp.
3. Connect current clamp to negative battery cable with arrow pointing away from
battery.
Tip:
Current flows out of the battery to the chassis of the vehicle.
4. Close all doors, trunk, or hood latch so vehicle control units detect all doors
closed.
5. Arm vehicle anti-theft system with remote.
Tip:
If vehicle has easy entry handles then it is necessary to keep clear of all
handles to avoid bus communication/wakeup message.
On vehicles equipped with air suspension, after engine is turned off, the
system will stay in standby for up to five minutes.
6. Observe sleep state current draw after vehicle is left untouched for TWO HOURS.
7. If after two hours the vehicle exceeds maximum sleep state current draw, proceed
to Step 3: Consuming Circuit Isolation. If vehicle does not exceed maximum sleep
state current draw, perform a long term (overnight) measurement test. Record the
30 reset. DO NOT remove or disconnect battery, battery cables or fuses.
Vehicle: Phaeton All other models
Nominal sleep current: 50 mA 40 mA
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 2 © 2011 Mitchell Repair Information Company, LLC.
long term measurement using MIN/MAX setting of scan tool.
Excessive current = Measured current > nominal sleep current
Tip:
Periodic spikes in current draw are normal.
STEP 3: CONSUMING CIRCUIT ISOLATION
Tip:
Due to the state of the CAN Bus communications in the vehicle, it is no longer
acceptable to pull each individual fuse one at a time to try and identify which circuit
is consuming current. Removal/reinsertion of a fuse while vehicle is in a sleep state
may wake the bus of the vehicle, and invalidate the test. Identifying "consuming"
circuits must be done by measuring a voltage drop across fuse and aligning with the
value in matrix located at end of this document.
STARTING AT INTERIOR FUSE BOXES, PERFORM THE FOLLOWING TASKS
Tip:
Use VAS 5051A/B multimeter function, Fluke 83 multimeter, or equivalent.
Use "mV" scale on meter.
Measure voltage drop across fuse by placing the positive lead on one side of the
fuse and negative lead on other side.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 3 © 2011 Mitchell Repair Information Company, LLC.
Take absolute value of reading of voltage drop (ignore negative signs) and then
reference voltage drop chart to determine how much current the circuit is
currently consuming. See Identifying Current Consumption with Matrix attachment.
Check all fuses until fuse with approximate excessive current draw is identified.
Tip:
Excessive current = Measured current > nominal sleep current
IDENTIFICATION OF COMPONENT
1. Once fused circuit is identified, use service repair and wiring diagram
information in ElsaWeb to identify all components on circuit.
2. Disconnect components from the circuit one by one and allow sleep current to
stabilize after each elimination.
3. Measure vehicle current consumption and voltage drop across fuse once again. If
within normal range, as specified in the table (see Current Consumption Matrix
attachment), the component with excessive consumption is identified.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 4 © 2011 Mitchell Repair Information Company, LLC.
4. Repeat steps above until component is identified causing excessive current draw.
WARRANTY
Information only.
REQUIRED PARTS AND TOOLS
No Special Parts required.
No Special Tools required.
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.
ATTACHMENT
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 5 © 2011 Mitchell Repair Information Company, LLC.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 6 © 2011 Mitchell Repair Information Company, LLC.
2010 Volkswagen Golf TDI
BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW
2019年6月7日 14:22:34 Page 7 © 2011 Mitchell Repair Information Company, LLC.
