The 17-year-old, who cannot be named, was one of three teenagers arrested following the death of Joan Price on the A77 in Ayr on 30 January.
At Ayr Sheriff Court Logan Knox, 19, of Girvan, was sent for trial, accused of causing death by dangerous driving.
He was also accused of perverting the course of justice. He made no plea and was remanded in custody.
Last week John Gribben, 18, of Ayr, was freed on bail after making no plea to similar charges.
Ms Price, a 59-year-old musician, from Troon, died at the scene of the collision on the A77 near Holmston roundabout.

Benedetto Vassallo, 68, from Folkestone in Kent, arrived in the UK with his parents as a young child in 1952.
The home secretary attempted to have Vassallo - who retained his Italian citizenship - deported.
However, the Court of Appeal ruled he was of "low risk" of reoffending and called him a "home-grown criminal".
Vassallo was convicted of 68 offences, mainly burglary, while living in the UK.
During this time he married a British woman and had two children who were also British citizens.
In May 2012 he was sentenced to 29 months in prison for a burglary committed at the home of an elderly couple.
After this the home secretary decided to make a deportation order against Vassallo on the grounds that it was necessary "in the interests of public policy or public security".
An immigration tribunal ruled that deporting Vassallo was not justified under European immigration regulations.
The Home Office appealed, however, three judges - Lord Justice Richards, Lady Justice Macur and Mr Justice Cranston -  agreed he should not be deported.
A teenager arrested after a woman died in an alleged hit and run crash has been freed by prosecutors.
[NEXT_CONCEPT]
An Italian-born burglar who has lived in the UK for 63 years cannot be deported despite his "reprehensible" record, a court has ruled.