Lord Ahmed took to a witness box to deny using his mobile phone in the seconds leading up to a fatal motorway crash.
The peer was giving evidence on Thursday at the Sheffield inquest into the death of Slovakian Martyn Gombar, 28, who died on Christmas Day 2007 when he was hit by the peer's Jaguar on the M1 near Rotherham, South Yorkshire.
Earlier this year, Lord Ahmed was jailed for 12 weeks after he admitted sending and receiving a series of text messages as he drove down the motorway prior to the collision with Mr Gombar. He was released after serving 17 days when the Court of Appeal suspended that sentence.
A series of courts have heard how Lord Ahmed had finished texting by the time the collision took place.
On Thursday, a coroner heard there was a gap of two minutes and seven seconds between him sending the last of these messages and him making a 999 call after the fatal crash.
Analysis of the mobile phone masts which were used to send Lord Ahmed's texts also showed he was at least a "couple of kilometres" north of the collision site at the time he sent the last one.
Coroner Chris Dorries said that if he assumed the 999 call was made 15 seconds after the fatal impact that would mean the crash happened roughly between 90 seconds and two minutes after the last text was sent.
He asked Lord Ahmed: "In the period of that 90 seconds, or whatever the figure actually is, did you pick up your mobile phone and look to see if a reply had been received or start making a further reply?"
The peer replied: "Absolutely not sir."
