Advice Needed: Need Location Of TCM & ECU - my6thgen.org

Nathaniel216 · 04-17-2013, 04:33 PM

I have a code pull up (P0726) Engine Speed and it's saying....

-POOR COMMUNICATION BETWEEN THE ECM & TCM HARNESS IS OPEN OR SHORTED.
-FAULTY ENGINE CONTROL MODULE (ECM)
-FAULTY TRANSMITTION CONTROL MODULE (TCM)
-FAILED CRANKSHAFT POSITION SENSOR (CKP)

I'm looking for a thread about this and pictures can help of location. And if anybody knows about this and or had this problem that is willing to help me. I haven't been driving my car because of this issue. It picks up speed really slow when at a stop. Don't like it. And is it bad to drive it like that. I already took it in to Nissan and got a diagnose but they want to charge me again to find out this issue as well. Need help.

**EddyMaxx** · 04-17-2013, 04:38 PM

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**BurntOrangeAppeal** · 04-17-2013, 04:40 PM

If you dont want to pay for diagnostics
Change both cam sensors Bank1 and Bank2. if this doesnt fix it very rarely its also the crank sensor, change the crank sensor also. Clear codes. Use OEM sensors.

Jony09 · 04-17-2013, 04:42 PM

I believe you have to remove your glove compartment and it should be on bottom right. I had similar issue but my car would not really pass 2mph lol it was just a wire I accidentally cut but yours seems different and mine is also an 07.

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**BurntOrangeAppeal** · 04-17-2013, 06:18 PM

Originally Posted by Nathaniel216

I have a code pull up (P0726) Engine Speed and it's saying....

-POOR COMMUNICATION BETWEEN THE ECM & TCM HARNESS IS OPEN OR SHORTED.
-FAULTY ENGINE CONTROL MODULE (ECM)
-FAULTY TRANSMITTION CONTROL MODULE (TCM)
-FAILED CRANKSHAFT POSITION SENSOR (CKP)

I'm looking for a thread about this and pictures can help of location. And if anybody knows about this and or had this problem that is willing to help me. I haven't been driving my car because of this issue. It picks up speed really slow when at a stop. Don't like it. And is it bad to drive it like that. I already took it in to Nissan and got a diagnose but they want to charge me again to find out this issue as well. Need help.

ECm is behind the glove box
TCM is behind the center console underneath the radio/Heating controls

Nathaniel216 · 04-17-2013, 06:23 PM

Originally Posted by BurntOrangeAppeal

If you dont want to pay for diagnostics
Change both cam sensors Bank1 and Bank2. if this doesnt fix it very rarely its also the crank sensor, change the crank sensor also. Clear codes. Use OEM sensors.

Your talking about the Camshaft Position Sensor right. If so that's another one I have to replace (BANK1). And the Camshaft sensor will throw off the Engine Speed code (P0726)

dallazcod · 04-18-2013, 01:43 AM

What's tcm ? And ecu is behind glove box next to in cabin filter

xXJU5T_L0UxX · 04-18-2013, 12:18 PM

**BurntOrangeAppeal** · 04-18-2013, 01:06 PM

Originally Posted by xXJU5T_L0UxX

Originally Posted by dallazcod

What's tcm ? And ecu is behind glove box next to in cabin filter

Transmission Control Module

Nathaniel216 · 04-18-2013, 02:02 PM

Originally Posted by dallazcod

What's tcm ? And ecu is behind glove box next to in cabin filter

TCM is TRANSMITTION CONTROL MODULE

dallazcod · 04-18-2013, 02:05 PM

Originally Posted by Nathaniel216

TCM is TRANSMITTION CONTROL MODULE

If that doesn't work will it prevent a car from starting ?

Nathaniel216 · 04-18-2013, 02:16 PM

Originally Posted by dallazcod

If that doesn't work will it prevent a car from starting ?

Yea but it'll start after the first or second crank. It sucks that's why I haven't been driving it. It's embarrassing when your in a nice Maxima and start's like shit and people are around and look.

xXJU5T_L0UxX · 04-18-2013, 02:59 PM

Originally Posted by BurntOrangeAppeal

Transmission Control Module

Thanks I was like, wth is that...lol

dallazcod · 04-18-2013, 03:02 PM

Originally Posted by Nathaniel216

Yea but it'll start after the first or second crank. It sucks that's why I haven't been driving it. It's embarrassing when your in a nice Maxima and start's like shit and people are around and look.

I cranked more then twice it won't start :/ changed my far box idk if its throttle body fuel pump or bcm computer

Nathaniel216 · 04-18-2013, 03:20 PM

Originally Posted by dallazcod

I cranked more then twice it won't start :/ changed my far box idk if its throttle body fuel pump or bcm computer

And what happened

dallazcod · 04-18-2013, 03:21 PM

Originally Posted by Nathaniel216

And what happened

Cranks doesn't start idk what to change next lol

Nathaniel216 · 04-18-2013, 03:21 PM

Originally Posted by BurntOrangeAppeal

If you dont want to pay for diagnostics
Change both cam sensors Bank1 and Bank2. if this doesnt fix it very rarely its also the crank sensor, change the crank sensor also. Clear codes. Use OEM sensors.

Do you know where the Crankshaft Sensor is located

**BurntOrangeAppeal** · 04-18-2013, 03:30 PM

Originally Posted by Nathaniel216

Do you know where the Crankshaft Sensor is located

It varies based on transmission option.
Usually located around the front bottom between the transmission and engine

Nathaniel216 · 04-18-2013, 04:13 PM

Originally Posted by BurntOrangeAppeal

It varies based on transmission option.
Usually located around the front bottom between the transmission and engine

Well it's an auto/manual if that helps. Is it hard to get too. would I be able to get it from being underneath the car.

**06BlckMax** · 04-18-2013, 04:22 PM

Originally Posted by Nathaniel216

Well it's an auto/manual if that helps. Is it hard to get too. would I be able to get it from being underneath the car.

5spd

Nathaniel216 · 04-18-2013, 05:56 PM

Originally Posted by 06BlckMax

5spd

Thanks bro. And will anything leak when I take it out.

**06BlckMax** · 04-18-2013, 06:05 PM

**BurntOrangeAppeal** · 04-18-2013, 07:38 PM

Originally Posted by Nathaniel216

Thanks bro. And will anything leak when I take it out.

Nothing should leak, unless you have a leaking main rear oil seal.

Nathaniel216 · 04-18-2013, 08:23 PM

Ok just want to make sure before I take it out. Thanks guys. I appreciate your guys help. I'll let you guys know if it worked

Nathaniel216 · 04-25-2013, 12:39 AM

06BlckMax and BurntOrangeAppeal. I replaced the Crankshaft Position Sensor, the Camshaft Position Sensor and replaced and added another ground because nothing was grounded except the engine is what Nissan said so I did all that and Everything's working fine again when I took it for a test drive with no SES light or any other lights. Cost me $110 for both sensors with lifetime warranty. Now my car is back on the road. Just wanted to say thanks for your guys help. I appreciate it. Thanks again.

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