2003 G35 w/Service Engine Soon, Slip and VDC OFF lights illuminated on the dash.

[Lil Red]

First of all, I did a search and found someone that had the exact same problem but their resolution is not valid for mine.

Here are the details:My car is a 2003 G35 coupe with 89,600 miles and it has never had any issues before. I just had my oil changed, and about 2 miles down the road my "Service Engine Soon" light , along with the "Slip" light AND and the light that says " VDC OFF" all came on. The car immediately lost power and I could only go about 20MPH the remaining 3 miles to my house.

The other person that posted this same problem noticed that the electronic connection that goes to the air box was not connected and apparently this resolved his issues. But they did not touch my air filter and I stood there and watched (within 5 ft) the entire time while they changed my oil. Of course I checked the connection on my car and it is fine.

Is there anything else they could have done to make this happen?? Is there an electronics connection in the vicinity of the oil filter that might have gotten knocked loose? Any and all help is greatly appreciated.

Thanks,Lil Red

[audtatious]

Usually when VDC Off, Slip and SES lights go on at the same time it is because the brake pads need to be replaced or the fluid is low. I was not aware that these would cause limp-home mode tho.

[3Q Jay]

not positive it applies to the coupe, but i had this on my v35 sedan (also m.y. 2003). infiniti had a recall--i think it was a brake switch.i did not have any driveability issues when it tripped (which it did several times before the recall came out).

[Lil Red]

Thanks audtatious, I don't think it's that because I just put new rear pads on about 3 weeks ago and I checked the fluid, however it is time for me to check the front pads. Is there a sensor that detects when the brake pads are worn down to a certain point?

Thanks 3Q Jay, do you know the recall number or anything like that? Where can I go to research recalls for my 03 G35?

[audtatious]

If the car has been to an Infiniti dealership recently, then all recalls have probably been performed. You can contact you local Infiniti dealership service department and have them run your VIN to see if there are any that have not been performed. Of note, the only 2003 recall listed that could cause "limp home mode" is ID# 03V455000

Current recalls for 2003 G35:

Recall ID# 03V200000 - SERVICE BRAKES, HYDRAULIC:SWITCHES:BRAKE LIGHT Recall Date: JUN 02, 2003 Model Affected: 2003 INFINITI G35 Summary: ON CERTAIN SEDAN AND COUPE MODEL VEHICLES, THE BRAKE STOP LAMP SWITCH MAY MALFUNCTION. Consequence: IF THIS OCCURS, THE BRAKE LAMPS WILL NOT ILLUMINATE WHEN THE BRAKE IS APPLIED, WHICH COULD RESULT IN A CRASH WITHOUT WARNING. Remedy: DEALERS WILL REPLACE THE BRAKE LAMP SWITCH. OWNER NOTIFICATION BEGAN ON JUNE 23, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT INFINITI AT 1-800-662-6200. Potential Units Affected: 60000 Notes: NISSAN NORTH AMERICA, INC. R3011

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Recall ID# 06E060000 - EXTERIOR LIGHTING Recall Date: JUN 29, 2006 Model Affected: 2003 INFINITI G35 Summary: CERTAIN AAI MOTORSPORTS COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LIST PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, ?LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.? Consequence: LACK OF AMBER SIDE REFLECTORS IN THE LAMPS WILL DECREASE LIGHTING VISIBILITY TO OTHER DRIVERS AND MAY POSSIBLY RESULT IN A VEHICLE CRASH Remedy: AAI MOTORSPORTS WILL NOTIFY OWNERS AND REPLACE THE LAMPS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 1, 2006. OWNERS MAY CONTACT AAI MOTORSPORTS AT 909-923-9188. Potential Units Affected: 87745 ----------------------------------------------------------

Recall ID# 05V555000 - FUEL SYSTEM, GASOLINE Recall Date: DEC 13, 2005 Model Affected: 2003 INFINITI G35 Summary: ON CERTAIN PASSENGER AND SPORT UTILITY VEHICLES, THE FUEL FILLER HOSE MAY CRACK AND RESULT IN FUEL LEAKAGE FROM THE HOSE WHILE REFUELING. Consequence: FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN A FIRE. Remedy: DEALERS WILL REPLACE THE FUEL FILLER HOSE. RECALL BEGAN ON FEBRUARY 27, 2006, FOR NISSAN OWNERS, AND ON MARCH 13, 2006, FOR INFINITI OWNERS. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200. Potential Units Affected: 192659 ----------------------------------------------------

Recall ID# 03V455000 - ENGINE AND ENGINE COOLING Recall Date: NOV 17, 2003 Model Affected: 2003 INFINITI G35 Summary: ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER DEFORMATION CAUSED BY HEAT STRESS ACCELERATED BY THE EXISTENCE OF FLUX RESIDUE DURING THE SOLDERING PROCESS. Consequence: THIS COULD CAUSE THE "SERVICE ENGINE SOON" WARNING LIGHT TO COME ON, CREATE A NO START CONDITION, CAUSE REDUCED ENGINE POWER, OR CAUSE THE ENGINE TO STOP RUNNING WITHOUT WARNING DURING VEHICLE OPERATION, WHICH COULD RESULT IN A CRASH. Remedy: DEALERS WILL REPLACE THE CRANK POSITION SENSORS. CAMSHAFT POSITION SENSOR(S), AND IN SOME CASES, THE VARIABLE TIMING CONTROL SENSOR(S). VEHICLES INVOLVED IN A PREVIOUS RECALL CAMPAIGN, 01V357, ARE ALSO INCLUDED IN THIS NEW CAMPAIGN. THE REPLACEMENT SENSORS USED IN THAT CAMPAIGN ARE ALSO AFFECTED. OWNER NOTIFICATION BEGAN ON DECEMBER 22, 2003. OWNERS SHOULD CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200. Potential Units Affected: 630000 ----------------------------------------------------

Recall ID# 02V331000 - EXTERIOR LIGHTING:HEADLIGHTS Recall Date: DEC 12, 2002 Model Affected: 2003 INFINITI G35 Summary: CERTAIN SEDANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, ?LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.? IN THE ASSEMBLY OF THE HEADLAMPS, IT IS NECESSARY TO HAVE A MEANS TO ADJUST THE HEADLAMPS. TAMPERPROOF CAPS TO PREVENT HORIZONTAL ADJUSTMENT OF THE HEADLAMPS ARE THEN INSTALLED. SOME OF THESE VEHICLES ARE MISSING THE TAMPERPROOF CAPS. Consequence: Remedy: DEALERS WILL INSTALL THE MISSING TAMPERPROOF CAPS ON THE HEADLAMP ASSEMBLIES. OWNER NOTIFICATION BEGAN JANUARY 20, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT INFINITI AT 1-800-662-6200. Potential Units Affected: 36000 ----------------------------------------------

Recall ID# 02V245000 - FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS Recall Date: SEP 12, 2002 Model Affected: 2003 INFINITI G35 Summary: ON CERTAIN PASSENGER VEHICLES, THE FUEL HOSE CONNECTION FOR THE OUTLET OF THE FUEL PUMP WHICH IS LOCATED AT THE TOP OF THE FUEL TANK MAY NOT HAVE BEEN PROPERLY ATTACHED WHEN THE VEHICLE WAS ASSEMBLED AND COULD COME LOOSE WHILE DRIVING OR WHEN STARTING THE ENGINE. Consequence: IF THE CONNECTION COMES LOOSE WHILE DRIVING, THE ENGINE WILL STOP RUNNING DUE TO LACK OF FUEL, INCREASING THE RISK OF A CRASH. ALSO, IF THE CONNECTION COMES LOOSE WHILE DRIVING OR ATTEMPTING TO START OR RESTART THE ENGINE, SOME FUEL WILL DISCHARGE FROM THE FUEL PUMP. IF THIS SHOULD OCCUR IN THE PRESENCE OF AN EXTERNAL IGNITION SOURCE, A FIRE COULD RESULT. Remedy: DEALERS WILL INSPECT AND, IF NECESSARY, PROPERLY ATTACH THE FUEL HOSE TO THE FUEL PUMP. OWNER NOTIFICATION IS EXPECTED TO BEGIN OCTOBER 7, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT INFINITI AT 1-800-662-6200.

[Lil Red]

Thanks audtatious, I will follow up with my dealership to verify that all the recalls have been applied. In the mean time, I will take the car to AutoZone and ask them to pull the trouble codes and repost the additional details. Thanks again.

[audtatious]

Absolutely. Codes will help troubleshoot.

[Lil Red]

I finally had an opportunity to get the trouble codes (fortunately I have a 2nd vehicle to drive). The codes are P0226 and P1228, the 3 lights are displayed on the dash as mentioned in the title and the car seems to be in limp mode. Any information is appreciated....

[audtatious]

P0226: Accelerator Pedal Position Sensor P1228: Accelerator Pedal Position Sensor 2

From: http://www.nicoclub.com/articles.php?id=182299

Unfortunately, the FSM totally ignores these codes and how to fix them.

[Lil Red]

Thanks for your reply audtatious.....so are you saying that my best bet is to take it to the Infiniti dealer?

Can you (or anyone else) give me the part number for the Throttle Position Sensor for the 03 G35 Sedan? I'm thinking about replacing it myself to see if that resolves the problem.

[Lil Red]

If I replace the Throttle Position Sensor, do I have to reset the PCM or will it automatically clear itself?

[AZhitman]

TPS for sure...

[jhill]

Your story is identical to my situation 100%. Are you driving my car?

Can you tell me the outcome to this fix? SLIP light is on and vehicle stalls minutes after starting and driving. I can restart but the SLIP light and CHECK ENGINE for SERVICE.

I can really use help trying to figure out why this is happening. My story is identical to yours. Brake pads ALL replaced in September and new tires in front as well as oil change last week.

Thanks .

[fixer]

sounds like a problem with the tps, the tps comes free with another throttle body. they sell reman throttle bodies at the dealer. after replacing the throttle body you will need to adjust idle air volume which is done with a scan tool.

[SteveTheTech]

DO NOT REPLACE ANYTHING YET

First off you have APP sensor codes not TPS codes. Secondly, you cannot replace the TPS without replacing the throttle assembly and that's a pricey shotgun guess.

To diagnose what the failed component is you will need a multimeter and a copy of the ESM. Take a look at the procedure starting on page EC-304. The logic for both of those codes indicates an erratic perceived gas pedal position sensor reference voltage. I would start with the pedal power supply and ground signal before doing anything else.

Given the fact that there are two seperate codes, with different detection logic I would strongly lean toward a failing gas pedal or fault in the power supply circuit.

[fixer]

you are right . i just looked at the dtc logic of the codes given, looks like your app sensor may be at fault, sometimes the tps can cause app codes. in this particular case the tps cannot cause these codes. you may need to look at the sensors on the accellerator pedal. its a rare occurance but htey do go bad.

[jwerty1]

first thought, relearn the app sensorto do this you must:

turn the key onturn the key off for 10 secondsturn the key on for 2 secondsturn the key off for 10 secondsturn the key on for 2 secondsturn the key off for 10 seconds (somewhere during this, you will hear the throttle body relearning itself as well)start the car

you could go to autozone, have them clear the code, then try this and see what happens

that's my first thought before even looking at the service manual

[SteveTheTech]

The codes are P0226 and P1228

P0226: Accelerator Pedal Position Sensor P1228: Accelerator Pedal Position Sensor 2

From: http://www.nicoclub.com/articles.php?id=182299

Unfortunately, the FSM totally ignores these codes and how to fix them.

There is no diagnostic logic for these codes because Nissan uses typically P2** for these codes to reference certain specific procedures and faults. I think your information should be updated to reflect that. I have never seen that before. These codes are generic scan tool by products and may confuse some people as many GSTs do not provide manufacturer specific communication protocalls just generic.

-To the OP you need to check the power supply and ground at the Accelerator Pedal connector, having both sensor 1 and 2 fail is rare and power supply may be the culprit.

[kjadams96]

We had the following issues with our 2004 Infiniti: Service engine soon light came on, Slip light came on, VDC light came on and car shut off. It continued to start up, but then would shut back off. We put it in the shop on the same day. We were told by the Infiniti of South Atlanta Svc Mgr on Sat, Aug 2nd that the problem is the "CAM Shaft Sensor". We got the car repaired on 8/4/09 and today is 8/23/09 and we have had no problems since.

The code found was P0340 = CAM SEN B1.

The Work Order showed: (PARTS) Sensor Assy Magnet - 23731-6J90B

Hope this helps!


Modified by kjadams96 at 3:21 PM 3/10/2010

[audtatious]

Good luck with it and welcome to NICO

[jmac886]

Lil Red, Were you able to find a fix for your problem. I'm having the same problem, VDC OFF light On, SLIP light On, CEL ON, and limp mode run. It happened 3 times last week.

Turning off the engine and then turning it back on works on a Hit or Miss basis (just a matter how my muck is on that day).

Can you please post if you found a fix for it.

[tagrawal]

@jmac886: I am having the exact same problem.. I went to mechanic and he told me that issue is with pedal sensor.. he said parts will come for $190 and labour cost will be $125..Please let me know what did you do...

[kebmo57]

It seems like several problems cause the same symptoms. I have an '04 G35 that looses power when the VDC OFF and Slip lights come on. I just put it into neutral, turn engine off and then restart. But then it won't shift into 5th gear. If I pull over, stop and then restart it shifts fine. To make long story short, my code is P2135. Throttle Position Sensor. Question: Can the sensor be replaced or does the Throttle Body need replaced? Thanks

[dinghole]

Sounds like a throtle motor issue. If ever you are going to replace the part. it needs to be relearn or problem will not be solved. local shop or dealer can do the relearn for you.

[SteveTheTech]

Sounds like a throtle motor issue. If ever you are going to replace the part. it needs to be relearn or problem will not be solved. local shop or dealer can do the relearn for you.

That's true sometimes.

In many cases as these cars age the computer cannot make up for a bad sensor. Forcing the plate open to clean the inside will almost certainly damage the closed throttle switch. The CTP and variable resistor cannot be serviced or replaced independently and the motor will require replacement.

If you read this thread from the beginning you will see that engine control codes will trigger the same response as low brake fluid. All the more reason to check everything before buying anything.

[Jkc3115]

Hi everyone, new to this forum. Anyways I have to same issue as everyone is describing here with vdc/slip lights and check engine light on... I replaced the throttle body($112), with a new sensor on it. The problem went away..... For a few hours. Brought the G to local nissan dealership, they say it's the acelerator pedal posisition sensor($400 installed). Will follow up if this fixes it.

[JessC]

Hi,

I have the exact same problem as many of you!! My '03 G35 stalled in the middle of the road three times today and the service engine, slip, and vdc off lights all went on
I will take the car to a Nissan dealer to check the code on Monday. Anyone think it could due to a recent tire change(I got new tires just last week) that might damage the sensors on the wheel?

Thanks!

[JessC]

[Update] After taking to a Nissan dealer, the engine failure code was P0340, which is a CAM sensor B1 failure. Cost $300 to get the sensors replaced and Infiniti said this was not covered by any of the recall so I had to pay in full

[LMoo]

I bought my 2003 Infiniti used. It was great for about 6 months. Then, the same issue started with the Slip, SES and VDC Off lights coming on. It stalled, but would re start. However, the lights stayed on and the speedometer stopped working. We took it to the dealer and they ran tests, etc. When we got it back it did not do it again, until it rained. If it rains this starts over. The lights come on and the speedometer stops working. Sometimes it will slip. It has not stalled any longer, but it may slip/jump when shifting. If I let the car sit overnight it starts back fine. The Slip and VDC Off lights go off, but the SES stays on. The dealership told me that this could be related to the radio that the former owner installed. I do not know. It is very fustrating. Any thoughts?

[uh2]

I bought my 2003 Infiniti used. It was great for about 6 months. Then, the same issue started with the Slip, SES and VDC Off lights coming on. It stalled, but would re start. However, the lights stayed on and the speedometer stopped working. We took it to the dealer and they ran tests, etc. When we got it back it did not do it again, until it rained. If it rains this starts over. The lights come on and the speedometer stops working. Sometimes it will slip. It has not stalled any longer, but it may slip/jump when shifting. If I let the car sit overnight it starts back fine. The Slip and VDC Off lights go off, but the SES stays on. The dealership told me that this could be related to the radio that the former owner installed. I do not know. It is very fustrating. Any thoughts?

I just bought a 2006 M35 with about 80,000 miles on it. When the dealer was detailing the engine before delivery, I got a call saying the CES light came on and it was driving rough.I believe he said he replaced the TPS and cleaned the TB (which I've read can be a bad thing). When I got the car back, it was idling high (over 1000 RPM). I found the procedure to adjust the idle and relearn the accelerator position and performed both. The idle appear to be in the proper range...and I thought my problems were over, but the VDC/SLIP/LIMP problem has happened twice since then. The first code I pulled before fixing the idle was for ...a high idle (I forget the actual #). I'm going to Autozone in the morning to pull the codes in there now and call the dealer.

I find in very interesting that LMoo's problem comes back when it rains. I found another post somewhere (an FX forum) with someone having the same problem...and it turned out that water was coming in via a leak in the firewall and dripping on the ECU/Amp. I don't know where the ECU in our cars is located (I haven't had time to search)...but is it possible it's vulnerable to water? Another poster with the same issue said his was caused by a loose ground wire in the main wire harness.

I'll post more info when I get it.