Economy mode and being towed

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

Moderator: Moderators

Post Reply
V6Exec
3.0 24v
Posts: 535
Joined: Mon Apr 23, 2007 11:17 pm
Location: Herts

Economy mode and being towed

Post by V6Exec » Tue Sep 11, 2012 11:10 pm

Had a coolant leak that resulted in getting a 30 mile rigid bar tow after the usual wait for recovery.

With the rigid bar tow the ignition was into the running position to ensure the steering was unlocked.

Half way through the tow super economy mode was activated - the BSI determined that luxuries like hazard warning lights/indicators could be disabled. Oddly enough electric windows have a higher priority than the hazard warning lights.
Remember - it only takes a few inches of water to drown a 406 don't make the same mistake I made! The V6 Exec is no more.

406 Coupe S HDi

PP2000 clone interface

User avatar
Welly
The moderator formally known as Welton
Posts: 14798
Joined: Tue Jan 10, 2006 1:52 pm
Location: East Midlandfordshire

Re: Economy mode and being towed

Post by Welly » Wed Sep 12, 2012 7:02 am

I had that once, being towed through a City Centre in the dark and ECONOMY MODE ACTIVE came up :roll: I daren't try the ignition again in case the steering lock came in and I couldn't steer. Waited until we were at some lights and reset the ignition.
Cars in my care:

2005 Volvo S40 T5 German Diesel botherer with new tyre grippage
2010 Citroen C4 1.6 HDi turbo de' explosions, bizarre gearbox model
2010 Renner Twingo refreshingly simple

486
1.8 8v
Posts: 31
Joined: Thu May 10, 2018 9:49 am

Re: Economy mode and being towed

Post by 486 » Tue Oct 01, 2019 2:49 pm

What is the reason for ECONOMY MODE? Can it be low power in battery? The car was not used for 4 weeks but ignition is fast, not like low energy.

GingerMagic
3.0 24v
Posts: 3190
Joined: Fri Apr 06, 2012 9:02 pm
Location: Bournemouth

Re: Economy mode and being towed

Post by GingerMagic » Tue Oct 01, 2019 4:37 pm

All it does is switch off the gadgets like stereo, lights etc to save the battery if the car detects a drain - it's supposed to stop the battery going flat if the radio or lights are left on.
The seats and windows still work, either for safety or the fact you are sat in the car to use them, so therefore aware of economy mode turning on.
1999 T4 family wagon
2005 Vauxhall Meriva
1998 406 V6 Coupe - Midlife crisis..!
PP2000 user, can help with faults / diagnostics in the Bournemouth area.

arber333
1.8 8v
Posts: 22
Joined: Wed May 09, 2018 10:02 am

Re: Economy mode and being towed

Post by arber333 » Tue Oct 01, 2019 4:48 pm

486 wrote:
Tue Oct 01, 2019 2:49 pm
What is the reason for ECONOMY MODE? Can it be low power in battery? The car was not used for 4 weeks but ignition is fast, not like low energy.
Usually ECO mode comes on if battery is lower than 12V. Did you have the lights on at the time? They consume quite a lot, maybe 350W + what systems you had on at the time.
Steering lock does not come on if you have a key in the lock.

See here how i managed to hack it :). It is not really a hack, you just need to bring one wire the same potential as the + pole of the battery. This starts two relays under the dash that provide power for interior. Basicaly car thinks alternator is working.
One could install a switch and turn this on at will. Say for some long waits on the parking lot or cleaning the car with radio on...
Yes downside is you may drain your battery that way.

viewtopic.php?f=3&t=24902&hilit=Peugeot ... 15#p252683

GingerMagic
3.0 24v
Posts: 3190
Joined: Fri Apr 06, 2012 9:02 pm
Location: Bournemouth

Re: Economy mode and being towed

Post by GingerMagic » Tue Oct 01, 2019 5:24 pm

Economy mode can be deactivated by PP2K by using 'showroom mode', or you could simply start the engine.....
1999 T4 family wagon
2005 Vauxhall Meriva
1998 406 V6 Coupe - Midlife crisis..!
PP2000 user, can help with faults / diagnostics in the Bournemouth area.

486
1.8 8v
Posts: 31
Joined: Thu May 10, 2018 9:49 am

Re: Economy mode and being towed

Post by 486 » Tue Oct 01, 2019 6:58 pm

My rear bonnet was replaced and I bother for potential bad wiring => some electric leak. In two cases the message was shown after long time of open doors/bonnet. But usually this is not a problem because lights are turned off after about 5 min and rear lamp is only one. The good explanation is if the battery is low after long time of non-working engine and lights become critical consumer. On the other hand the starter worked without ponderosity after the message.

GingerMagic
3.0 24v
Posts: 3190
Joined: Fri Apr 06, 2012 9:02 pm
Location: Bournemouth

Re: Economy mode and being towed

Post by GingerMagic » Tue Oct 01, 2019 7:36 pm

Yes, the economy mode prevented the battery getting to low voltage to start the car - this is its job 8)

It is possible to flatten the battery by simply opening and closing the doors over a few hours ( or testing electric seats :oops: ) because these are not affected by economy mode....
1999 T4 family wagon
2005 Vauxhall Meriva
1998 406 V6 Coupe - Midlife crisis..!
PP2000 user, can help with faults / diagnostics in the Bournemouth area.

Post Reply