[christeralund]

As topic describe, my brake lights stays on continuesly, even when car is turned off. I have replaced the TIPM with an upgraded one (for various electrical reasons) and replaced the brake pedal switch. The only way to to get the brake lights to turn off, I have to remove the negative battery cable. I checked the ecu with an obd2 reader and no fault codes could be seen. Also checked grounding points for possible failures, but without success.

I can get the brake lights to turn off by placing negative and positive battery cables together to drain the capacitors and wipe the ecu's memory. But as soon I touch the brake pedal, they light up again.

Any thoughts where the trouble could be?

Best regards. Christer.

 

[Aleks]

Both lights? I would suggest the TIPM is not configured. Was it from an EUR SPEC Caliber with same wiring?

 

[christeralund]

Both sides and tail. I did order a configuration of the TIPM according to the Vin number ($75 extra) and my car is an US import. But who knows.. The configuration could be a miss?

 

[Aleks]

I thought you may have US wiring. What year? Amber turn signals or joint.

 

[christeralund]

It is a 2007. Amber/orange bulbs.. Not following on "join"..

 

[Aleks]

The 07 and most of 08 had the same wiring loom globally.

Joint means the brake and signal light are combined.

Your brake switch activates the circuit but does not disengage. There is a wiring diagram in the Service Manual see if there is anything else connected. I can't think of anything else.

 

[672aq]

What happens if you turn on a turn signal?

What happens if you turn on the flashers?

 

[christeralund]

What happens if you turn on a turn signal?

What happens if you turn on the flashers?

Not much.. All other lamps work as they should.. Well, except rear tail since they are jointed with brake lights which they overrule.. Still looks like the brakes are engaged.

 

[Aleks]

Rear fogs are the only difference on the 07. Are you using a Eur TIPM on a US car, maybe it's signalling the fog circuit which I am assuming you don't have in your cluster?

 

[672aq]

Rear fog should only be the driver rear, and would be a separate bulb.

The turn signal should override the brake light. If the turn signal is on and it's not flashing the rear light, I don't think this problem lies with the brake circuit.

I'd suspect the flasher circuit, since that overrides all the others.

 

[Aleks]

He has an 07 with separate amber flashers. EUR fogs are both sides inside the cluster. All his bulb holders are separate. I believe that the first 2 model years had a universal wiring harness as Daimler's lead 'global' car. His circuit is being initiated by the pedal switch.

The question is are all tail circuits 'signaled' to the TIPM or are some classic dc. Could the TIPM be waiting for an off signal from something else?

 

[dodgerojo]

Good morning, I think we will have to check the wiring of the TIPM, something must make a bad contact, or badly connected. when you remove the key from the Clausor everything should turn off but it is sending power to the taillights. A greeting.

 

[christeralund]

Rear fogs are the only difference on the 07. Are you using a Eur TIPM on a US car, maybe it's signalling the fog circuit which I am assuming you don't have in your cluster?

What i could see i don't have rear foglights..(?) Front fog lights work just fine and indicates on the dashboard cluster.
I have to double check with the company who sold it to me, so they didn't send a EU TIPM. But according to the VIN i gave them, they should perhaps know it is a US model ?

 

[christeralund]

Rear fog should only be the driver rear, and would be a separate bulb.

The turn signal should override the brake light. If the turn signal is on and it's not flashing the rear light, I don't think this problem lies with the brake circuit.

I'd suspect the flasher circuit, since that overrides all the others.

Rear fog lights is only on export models according to the workshop manual.
Tried using the turn signals while engine was on, and brake lights was still glowing and turn signals were blinking.
Just came think about something.. there is two cable's that are bridged in one of the sockets under the TIPM. But it looks like it's standard from factory, i have check the wiring diagram what functions it has..

 

[christeralund]

Good morning, I think we will have to check the wiring of the TIPM, something must make a bad contact, or badly connected. when you remove the key from the Clausor everything should turn off but it is sending power to the taillights. A greeting.

Already checked, but it doesn't hurt to tripple check the connectors and wires under there.. Will do that.

( A huge thank you everybody for helping me brainstorming this problem. Much appriciated.)