resetting ECU - Page 3

960kg · Jul 3rd, 2017, 08:10

Setting the ECU by disconnecting the battery overnight works ok.....but in the Volvo workshop they used to reset by ignition off...disconnect leads to battery then touch the leads together for a few seconds only...then is reset.

Linestarboard · Dec 23rd, 2017, 08:12

Why wouldn't you just disconnect the battery, then turn the ignition key on and hold it on for a few seconds? This effectively bridges the + & - together in the ECU without any risk (i.e. this prevents someone accidentally doing it to anything having a capacitor or heaven forbid, the battery itself?)

Jul 3rd, 2017, 08:10	#21
960kg Premier Member Last Online: Dec 28th, 2022 12:25 Join Date: Jun 2009 Location: Mercville	Setting the ECU by disconnecting the battery overnight works ok.....but in the Volvo workshop they used to reset by ignition off...disconnect leads to battery then touch the leads together for a few seconds only...then is reset. __________________ Mercedes C320CDI Sport Estate 3 litre V6 7 Gear Auto Remap 290bhp 628Nm torque @ 1600revs 45.1mpg

Dec 23rd, 2017, 08:12	#22
Linestarboard New Member Last Online: Jan 6th, 2018 00:51 Join Date: Dec 2017 Location: Manly West	Hold ignition on to deplete residual power Why wouldn't you just disconnect the battery, then turn the ignition key on and hold it on for a few seconds? This effectively bridges the + & - together in the ECU without any risk (i.e. this prevents someone accidentally doing it to anything having a capacitor or heaven forbid, the battery itself?)

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