TOKYO, Feb 28 Reuters Toyota Motor did not respond to a trade union39;s wage demands in a second round of pay talks held on Wednesday, a senior union official said, keeping investors guessing about the outcome of closelywatched annual wage talks due to conclude on March 13.

For the past two years, the world39;s biggest automaker by volume has accepted the union39;s demands in full at the first meeting, which has long served as the pacesetter for Japan39;s spring wage round called shunto.

We did not receive a response to our pay demand today, Hiroki Akiyama, a senior Toyota union official, told reporters.

The Federation of All Toyota Workers39; Union demands record bonus payments worth 7.6 months of salary, while seeking monthly pay raises of up to 28,440 yen 188.72 depending on job qualifications and occupation.

Last week, Toyota said it would continue negotiations with the union after the first round of talks.

Instead of reaching a pact on wages and bonuses, the company and union deepened their debate over workplace issues on Wednesday, Akiyama said.

We will continue negotiations into next week, he said.

Toyota has not decided yet when it will respond to the union39;s wage rise request, Takanori Azuma, the automaker39;s chief human resources officer, said on Wednesday.

In contrast, Honda Motor, Japan39;s secondlargest automaker, responded in full last week to union demands for a record rise in base pay and bonus payments.

Toyota39;s third labourmanagement…