Lije Baley

My '08 G37 (purchased Fall of '08) frequently had a discharged battery if the car sat idle for more than a few weeks. I retired in late '08 (I know, really old am I) and began traveling, leaving the G in the garage. Everytime I returned home, the battery was dead, but could be restored with a jump or trickle charging. There have been several threads (this post could be merged into one if appropriate) about the problem, so I knew my issue was not unique.

I first complained to my dealer in late '09. They checked the battery and determined it was OK, no replacement needed. Of course, after two more absences from home of a couple of weeks each, the battery needed charging each time. Finally, I was recently gone for only five days. The battery was again dead. I called the dealer again, mentioning the TSBs I'd learned about in this forum. Now that the TSB has been issued the dealer knew what to do. My battery was replaced with a larger battery (for the FX series, I think) and the valve assembly control was replaced (that is the probable drain on the battery). Also, the dealer ordered a BCM (body control module?) and software for the ECM. After those are installed, the battery issue should be no more.

If you've found your G with a dead battery, now is the time to get it fixed.

XtatiC

Thank you!!! I think it's time I do this also

]\[ /-\ ]\/[

iTrader: (3)

darn...i left my car for about 3wks in the garage and car wouldn't start..went and bought a new battery instead of going to infiniti

Ivoidwarranties

iTrader: (7)

Thanks for the post. I too am going to take this car in for those changes. I keep a CTEK battery charger on it all winter long because if I don't the battery goes dead real quick. I need to find the TSB number (I know it's on here somewhere).

Lije Baley

There is a parallel thread in the TSB forum.

My work order had the TSB number, as does that thread. #ITB01-010A. The work order shows the following parts replaced:

Valve Assy - Control - 14935 - JF00A ASR
Infiniti Battery - 999M1 - QC24F

Special Ordered BCM
Needs New ECM. Part is on backorder.

In the other thread several posters left their coupes with the dealer until the BCM was obtained. My dealer said it would be several weeks and the bigger battery should stay charged until the BCM arrived. So, I drove home. If it discharges, I'll have to put the trickle charger to the battery one last time. When the ECM is applied to the BCM (?) the keys have to be reflashed as well. I expect my few custom settings will be gone. I think all were lost with the battery swap anyway.

cvt

Wow. Been trying to find the TSB # for this. Thanks Lije.

]\[ /-\ ]\/[

iTrader: (3)

so if i already bought a new battery, the car will still drain it if i leave my car sitting for long time?

Ivoidwarranties

iTrader: (7)

That's because you still have to get the thing fixed. They update the software and will probably replace that valve thingy in the TSB. All the newer cars run off a canned bus and when one thing doesn't shut down properly it will effect the whole car.
Here's a good example, on the 300C the subwoofer would beat every once in a while when the car was off. It sounded like a heartbeat. After updating the software for the sunroof control module (per the TSB), the problem was solved. The sunroof control module was not downpowering correctly and it would cause the sub to pound, how weird is that.

ifinity

iTrader: (1)

Found this at InfinitiHelp.com:

ITB10-010 January 20, 2010
2008 G37 COUPE; BATTERY LOW VOLTAGE / NO START
APPLIED VEHICLES: 2008 G37 Coupe (CV36)
IF YOU CONFIRM
An Applied Vehicle has a Battery Low Voltage or no start condition due to specific customer use pattern (see Repair Overview on page 3 of this bulletin).
NOTE: A battery low voltage condition may cause an engine no crank or no start condition.
ACTIONS
Confirm this bulletin applies.
• Check the Repair Overview flowchart on page 3.
If the customer use pattern DOES NOT MATCH the description in the Repair Overview this bulletin DOES NOT APPLY. Go back to ASIST for further diagnostic and repair information
If this bulletin applies, use the Repair Overview in this bulletin to determine which repair procedures to apply to your vehicle.
IMPORTANT: The purpose of ACTIONS (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Repair Overview as it contains information that is essential to successfully completing this repair.
Infiniti 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 Infiniti dealer to determine if this applies to your vehicle.
p1/8

PARTS INFORMATION
Model Year, Description, Original P/N, Replacement P/N, Quantity
2008, BCM, 284B1 JL04C, 284B1 JL14C, 1
2008, BCM, 284B1 JL04E, 284B1 JL14E, 1
2008, BCM, 284B1 JL05C, 284B1 JL15C, 1
2008, BCM, 284B1 JK64C, 284B1 JK74C, 1
2008, BCM, 284B1 KJ64D, 284B1 JK74D, 1
2008, BCM, 284B1 JK64E, 284B1 JK74E, 1
2008, BCM, 284B1 JK65B, 284B1 JK75B, 1
2008, BCM, 284B1 JK65C, 284B1 JK75C, 1
2008, BCM, 284B1 JK65D, 284B1 JK75D, 1
N/A, Vent Control Valve, N/A, 14935 JF00A, If needed
N/A, Battery, N/A, 999M1 QC24F, If needed
CLAIMS INFORMATION
Submit a Primary Failed (PP) type line claim using the following claims coding.**
DESCRIPTION PFP OP CODE SYM DIA FRT Replace BCM (1) RD94AA ZE 32 (2) AND IF NEEDED DESCRIPTION PFP OP CODE SYM DIA FRT Reprogram ECM (1) DE97AA ZE 32 (2) AND IF NEEDED DESCRIPTION PFP OP CODE SYM DIA FRT Replace Vent Control Valve (1) FC50AA ZE 32 (2) AND IF NEEDED DESCRIPTION PFP OP CODE SYM DIA FRT Replace Battery (1) GB16AA ZE 32 (2)
(1) Please reference the Parts Information table and use the applicable ORIGINAL BCM P/N as the PFP
(2) Reference the current Infiniti Warranty Flat Rate Manual and use the indicated flat rate time.
**All operation codes to be claimed on the same repair line.
p2/8 ITB10-010

Repair Overview
*NOTE: This step includes Re-registration of ALL I-KEYS AND Re-initialization of the TPMS with recalibration of all sensors.
Compare current BCM part number with the ones listed Table A on page 4
BCM P/N DOES Match
Compare current ECM part number with the ones listed Table B on page 5
STOP. This bulletin does not apply. Return to ASIST or ESM for further diagnostic assistance.
BCM P/N does NOT Match
Does the customer only make frequent short trips with the car or store the car for long periods?
Reprogram ECM (page 5)
ECM P/N DOES Match
ECM P/N does NOT Match
Do Not Reprogram ECM
Check Vent Control Valve Type (page 7)
Old style
New style
Do Not replace Valve
Replace Valve
Replace the battery with the GR24-series one from the Parts Information section of this bulletin.
NO
Replace the BCM with the applicable one from the Parts Information section of this bulletin (page 2)*
YES
STOP. This bulletin does not apply. Return to ASIST or ESM for further diagnostic assistance.
p3/8 ITB10-010

BCM PART NUMBER CHECK
1. Connect CONSULT-III to the vehicle.
2. Once the vehicle is detected go to “REPAIR” > “ELECTRONIC REPAIR” > “SELECT SYSTEM” (BCM) > “ECU IDENTIFICATION”. Write the BCM Part Number on the Repair Order.
3. Compare the BCM Part Number to the ones shown in Table A below:
Table A
Current BCM P/N
284B1 1NE5D
284B1 1NE6A
284B1 1NE6B
284B1 1NE6D
284B1 1NE6E
284B1 JL14C
284B1 JL14E
284B1 JL15C
284B1 JK74C
284B1 JK74D
284B1 JK74E
284B1 JK75B
284B1 JK75C
284B1 JK75D
• If there IS NO match proceed to BCM REPLACEMENT.
• If ther IS a match this bulletin does not apply. Refer to ASIST or the ESM for further diagnostic assistance.
BCM REPLACEMENT
1. Replace the BCM.
2. Reregister all I-Keys.
3. Reinitalize TPMS and recalibrate all sensors.
4. Proceed to ECM REPROGRAMMING.
p4/8 ITB10-010

ECM REPROGRAMMING
1. Begin the reprogramming procedure.
• If you are not familiar with the reprogramming procedure, click here. This will link you to the “CONSULT-III (C-III) ECM Reprogramming” general procedure.
CAUTION:
• Connect a battery charger to the vehicle battery.
If the 12V battery voltage drops during reprogramming, the ECM may be damaged .
• Be sure to turn OFF all vehicle electrical loads.
If a vehicle electrical load remains ON, the ECM may be damaged.
• For ECM reprogramming, the C-III MUST be connected to the VI using the USB cable.
• Be sure to connect the AC Adapter.
If the C-III battery voltage drops during reprogramming, the process will be interrupted and the ECM will be damaged.
2. When you get to the ECM Reprogramming screen shown in Figure 1, confirm this bulletin applies as follows:
A. On your C-III screen, look at the Part Number column (see Figure 1)
• If this column is blank (no part number listed), proceed to VENT CONTROL VALVE TYPE CHECK
• If a Part Number is listed, write it on the Repair Order.
A
Figure 1
p5/8 ITB10-010

B. Compare the Part Number you wrote down to the numbers in the Current ECM Part Number column in Table B.
• If there is a match, this bulletin applies. Continue with the reprogramming procedure.
• If there is not a match, proceed to VENT CONTROL VALVE TYPE CHECK.
Table B
Vehicle Configuration, Current ECM P/N
CV36_08MY_VQ37VHR_AT_ASCD, 23710 JK86B
CV36_08MY_VQ37VHR_AT_ASCD, 23710 JK86A
CV36_08MY_VQ37VHR_AT_ASCD, 23710 JK70E
CV36_08MY_VQ37VHR_AT_ASCD, 23710 JK70D
CV36_08MY_VQ37VHR_AT_ASCD, 23710 JK70C
CV36_08MY_VQ37VHR_AT_ASCD, 23710 JK70B
CV36_08MY_VQ37VHR_AT_ASCD_FPUMP, 23710 JK87B
CV36_08MY_VQ37VHR_AT_ASCD_FPUMP, 23710 JK87A
CV36_08MY_VQ37VHR_AT_ASCD_FPUMP, 23710 JK71E
CV36_08MY_VQ37VHR_AT_ASCD_FPUMP, 23710 JK71D
CV36_08MY_VQ37VHR_AT_ASCD_FPUMP, 23710 JK71C
CV36_08MY_VQ37VHR_AT_ASCD_FPUMP, 23710 JK71B
CV36_08MY_VQ37VHR_AT_ACC, 23710 JK88B
CV36_08MY_VQ37VHR_AT_ACC, 23710 JK88A
CV36_08MY_VQ37VHR_AT_ACC, 23710 JK72E
CV36_08MY_VQ37VHR_AT_ACC, 23710 JK72D
CV36_08MY_VQ37VHR_AT_ACC, 23710 JK72C
CV36_08MY_VQ37VHR_AT_ACC, 23710 JK72B
CV36_08MY_VQ37VHR_AT_ACC_FPUMP, 23710 JK89B
CV36_08MY_VQ37VHR_AT_ACC_FPUMP, 23710 JK89A
CV36_08MY_VQ37VHR_AT_ACC_FPUMP, 23710 JK73E
CV36_08MY_VQ37VHR_AT_ACC_FPUMP, 23710 JK73D
CV36_08MY_VQ37VHR_AT_ACC_FPUMP, 23710 JK73C
CV36_08MY_VQ37VHR_AT_ACC_FPUMP, 23710 JK73B
CV36_08MY_VQ37VHR_MT_ASCD_FPUMP, 23710 JK78A
CV36_08MY_VQ37VHR_MT_ASCD_FPUMP, 23710 JK75E
CV36_08MY_VQ37VHR_MT_ASCD_FPUMP, 23710 JK75D
CV36_08MY_VQ37VHR_MT_ASCD_FPUMP, 23710 JK75C
CV36_08MY_VQ37VHR_MT_ASCD_FPUMP, 23710 JK75B
CV36_08MY_VQ37VHR_MT_ACC_FPUMP, 23710 JK79A
CV36_08MY_VQ37VHR_MT_ACC_FPUMP, 23710 JK77E
CV36_08MY_VQ37VHR_MT_ACC_FPUMP, 23710 JK77D
CV36_08MY_VQ37VHR_MT_ACC_FPUMP, 23710 JK77C
CV36_08MY_VQ37VHR_MT_ACC_FPUMP, 23710 JK77B
p6/8 ITB10-010

3. If this bulletin applies and you have performed ECM reprogramming, the screen in Figure 2 appears when reprogramming is complete.
Print this page and attach it to the Repair Order for Warranty documentation.
Figure 2
4. Proceed to VENT CONTROL VALVE TYPE CHECK.
p7/8 ITB10-010

VENT CONTROL VALVE TYPE CHECK
1. Compare the Valve with the ones shown in pictures below:
Old style Vent Control Valve
New style Vent Control Valve
• If it is the New style DO NOT REPLACE IT and proceed to BATTERY CHECK AND FINAL PROCESSES.
• If it is the Old style REPLACE IT with the one from the Parts Information section of this bulletin and proceed to BATTERY CHECK AND FINAL PROCESSES.
BATTERY REPLACEMENT AND FINAL PROCESSES
1. Replace the battery with the GR24-series one from the Parts Information section of this bulletin, then proceed to step 2.
NOTE: Ensure the replacement battery is fully charged and ready for service prior to release of the vehicle to the customer.
2. Make sure to erase DTCs from all Systems.
NOTE: During the reprogramming, DTCs will set in several systems. DTCs must be erased from all systems.
3. Test drive the vehicle and make sure it operates correctly and the Check Engine light is OFF.
• If the Check Engine light comes ON, go back to ASIST for further diagnostic information. Refer to the applicable Electronic Service Manual as needed.
• Diagnosis and repairs beyond the ones described in the Repair Overview are not covered by this bulletin.
p8/8 ITB10-010

kkokko

damn i bought a redtop as well instead of going to the dealer... do you think if i bring in my completely dead infiniti battery they would help me do teh rest of the TSB not incl the battery upgrade?

Lije Baley

Why not?

kkokko

well it seems like they need to test that the battery is in working condition and your infiniti still has issues before they perform the TSB,

If i bring back the old battery and everything is working fine now how can they prove the symptoms of the TSB?

Lije Baley

My battery was working. I explained I'd needed to charge it on numerous occasions after letting it sit idle for a week or two. My dealer accepted that description. I would hope your dealer, especially after the TSB was issued, would not give you a hard time. After all, Infiniti reimburses the dealership for the work.

Team Punisher

Had mine done last month, and all is well...

cjc357

I want to make sure I say the right things to my dealer. My issue is when I dont drive the vehicle for a week or two, the battery is dead. That has happened a few times.

I want to make sure to avoid this part of the TSB: " If the customer use pattern DOES NOT MATCH the description in the Repair Overview this bulletin DOES NOT APPLY."