2002 Tahoe wont run

[Steve Berg]

What specific DTC is being set? If more than one, please post all.

The scanner just say cant communicate. I can see that there are dtc but can only remove them, not see the numbers. They or It comes back after two seconds after removing. I am struggeling with this and i might have the car on a flat bed and delivered to a garage.

 

[MassHoe04]

I started my 04 and drove a mile and parked at the burger place. Come back out, turn the key and nothing! Then I notice no interior lights, nothing on the cluster too. Turned out to be the connections on the battery clamps. Tightened just enough to get home, then the engine was dying as I pulled in the driveway. Replaced the top-post-to-side adapter clamps I had the next day. That issue was taken care of for good.

I had a partial, but sometimes intermittent connection at the battery. That makes the truck unhappy.

Just trying to rule out the cheap and easy here...
You mentioned battery is good, but did you verify the cables are in good shape and all connections are clean and tight?

 

[Steve Berg]

Anyone who can confirm that eBay # 292765994146 will fit between Sensor and BCM? Try to look for parts and thinking that the sensor by the key and the wire is the best place to start

 

[Steve Berg]

I started my 04 and drove a mile and parked at the burger place. Come back out, turn the key and nothing! Then I notice no interior lights, nothing on the cluster too. Turned out to be the connections on the battery clamps. Tightened just enough to get home, then the engine was dying as I pulled in the driveway. Replaced the top-post-to-side adapter clamps I had the next day. That issue was taken care of for good.

I had a partial, but sometimes intermittent connection at the battery. That makes the truck unhappy.

Just trying to rule out the cheap and easy here...
You mentioned battery is good, but did you verify the cables are in good shape and all connections are clean and tight?

I had that problem myself and have good connection on the clamps. Removed old studs and installed slightly longer bolts and

 

[MassHoe04]

I had that problem myself and have good connection on the clamps. Removed old studs and installed slightly longer bolts and

Mine loosened up because I was not careful in tightening the cable bolts into the battery clamps. The lead strips out easily if over tightened... Slipping a toothpick in the threaded holes helped the bolts grip, but only for a few months. Then the cable connections loosened and began to cause the no-start and making the computer act wonky with the unsteady voltage (if already running, the engine would begin to sputter and spit).

New clamps were the cure.

 

[Fless]

Try a security relearn:

https://www.justanswer.com/chevy/2t00i-reset-security-system-2002-chevy-tahoe.html

 

[Steve Berg]

Try a security relearn:

https://www.justanswer.com/chevy/2t00i-reset-security-system-2002-chevy-tahoe.html

I tried this. No good. The security light i only permanently when ignition is off. With ignition on it alterates between security and the red charging light. After 10 minits the security stil comes up. I tried for more than 10 minutes to and no luck.

 

[rockola1971]

The scanner just say cant communicate. I can see that there are dtc but can only remove them, not see the numbers. They or It comes back after two seconds after removing. I am struggeling with this and i might have the car on a flat bed and delivered to a garage.

I think we have a language barrier here. We need to clarify your exact symptom(s).

(1) What happens when you turn the key all the way forward to the engine crank position?
(2) Does engine start? If so then how long does it run?
(3) You say your interior lights are not working at all? Did they before?
(4) What is the voltage at the battery taken with a voltmeter with key off?

PASSLOCK should not have anything to do with your interior lights but a bad ignition switch or battery wire connections(both ends of the positive and negative cables) can.

And since you are so cold right now, I will trade you and you can come hang out here in the Midwest U.S. and I will gladly come over there and hangout with some Norwegian women!

 

[Steve Berg]

I think we have a language barrier here. We need to clarify your exact symptom(s).

(1) What happens when you turn the key all the way forward to the engine crank position?
(2) Does engine start? If so then how long does it run?
(3) You say your interior lights are not working at all? Did they before?
(4) What is the voltage at the battery taken with a voltmeter with key off?

PASSLOCK should not have anything to do with your interior lights but a bad ignition switch or battery wire connections(both ends of the positive and negative cables) can.

And since you are so cold right now, I will trade you and you can come hang out here in the Midwest U.S. and I will gladly come over there and hangout with some Norwegian women!

1. Without key security on at all time. When turning key it cranks ant try to start.
2. It starts and dies after a second or two.
3. Lights and powerlook worked as normal before and latest halv a hour before i
parked thre car .
4. 12.67V. I also use a 5 amp maintenance charger when working with the car.
12,67V it whitout charger and battery resting.

People had light and powerlock problems with the passlock failing and in adition i have the light on to tell me the passlock plays up. Have a PK3+ on my keys so i guess that is a Passkey 3+ system in my car.

You are welcome to Norway but its to cold to chase women, better to repair old US cars

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

I cannot personally help you with your question; however, other members on this Forum that are much more knowledgeable than me will chime in.